Transmission Diagnostics & Repair

Transmission general data The family of front-wheel drive 5-speed automatic transmissions A5GF1, A5HF1 (F5A51) from Hyundai has been modified since 2005 on the basis of 4-speed predecessor F4A51 and installed on the range FWD and AWD vehicles of Kia (Sportage, Sorento...) and Hyundai (Sonata, Santa Fe, Opirus, Karens... ) for the entire range of engines from 2 up to 3.5 liters. Mitsubishi uses this transmission named as F5A51.0. This front drive family of transmissions is related to the rear drive V4A51. Parts are maximally unified and interchangeable. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type5ATFWD/4WD8,43,5SP III Technical issues and repair guidelines With regard to clutch packages this automatic transmission is well balanced. These packages work properly during their lifespan. Problems are mainly related to wear-out of seals leading to oil shortages and problems with transmission components.The pump assembly is also replaced under the condition of a long-term operation with worn-out torque converter clutch and subsequent vibrations. Contaminated oil speeds up ageing of the pump and bushing. The pump bushing and the seal are the first to get out of order because of above mentioned problem. Worn-out bushings are repaired and replaced quite frequently. Then the list of parts to be replaced includes the drum with a sun gear and the brake band. As far as the electrics of this transmission is concerned, speed sensors of the input and output shafts are the first to reach the end of their service lifespan. Solenoids Shift are standardized in all valve bodies. These solenoids operate properly for quite a long time, Solenoid-electric controller EPC (VFS) is the first to get out of order because of high loads. Which cars run with this gearbox?BrandModelYearTypeEngineHyundaiEQUUS00-085 SP FWDV6 3.0L 3.5LHyundaiGRANDEUR XG00-055 SP FWDV6 2.5L 3.0L 3.5LHyundaiSANTA FE00-065 SP F/4WDV6 3.5LHyundaiXG01-055 SP FWDV6 3.0L 3.5LKIAAMANTI04-055 SP FWDV6 3.5LKIACARNIVAL00-055 SP FWDV6 3.5LKIAGRAND CARNIVAL04-105 SP FWDV6 3.5LKIAOPIRUS03-055 SP FWDV6 2.7L 3.0L 3.5LKIASEDONA02-055 SP FWDV6 3.5LMitsubishiDIAMANTE00-015 SP FWDV6 2.5L How to repair this transmission (Videos)F5A51 Sprag RotationF5A51 Transmission, No Forward, Slips in ReverseF5A5A,F5A51, Transmission Rebuild Instruction manuals and useful linksLink typeSourceDescriptionpdfSonnaxValve Body Layout F5A5A (F5A51), A5GF1, A5HF1 (F5A51)

Transmission general data The 4-speed automatic transmission F4A41 / F4A42 from Mitsubishi was designed in 1997 for FWD vehicles of the middle class with engines (1.3 - 2.8 lit.). This transmission was strongly influenced by Chrysler. In terms of design, this range of transmissions is more related to А604, then to KM series. The F4A41 unit is installed with engines 1.3 - 1.8 lit., updated modification F4A42 for engines 1.6 - 2.8 lit F4A41-42 has been used since 1999 on many well-known FWD cars of middle class with engine capacity about 2 lit. The W4A42 is a rare version on the basis of FWD automatic gearbox for 4WD light motor vehicles. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type4ATFWD7,83,8SP III Technical issues and repair guidelines This Mitsubishi-Hyundai family of transmissions is frequently repaired. The distinction between F4A41 and F4A42 units lies in distinct quantity of frictions in packs, and consequently clutch drums of various capacity. The transmission reassembly commonly requires the kit of gaskets and seals, filters and complete kit of frictions. In old cars which went through the oil starvation, specialists change the entire kit of bushings together with usual procedures related to cleaning and reassembly. In terms of design, the main soft spot of the F4A41 unit is the planetary gear Overdrive, where the needle bearer gets dyed when exposed to overloading. The rear planetary gear and a crown gear also get out of order. This planetary gear was repeatedly updated. In most cases, specialists replace burnt Overdrive package, frictions with steel and bearing discs. The valve body is one of the causes for burning of packages Underdrive and 2-nd Brake. The wearout and clogging of valves and solenoids leads to fluid shortages not only in these packs, but also in the TC unit. The valve body was repeatedly updated and now has modifications with 5 and 6 solenoids. Which cars run with this gearbox?BrandModelYearTypeEngineMitsubishiCARISMA95-034 SP FWDL4 1.6LMitsubishiDINGO00-024 SP FWDL4 1.3L 1.5L 1.8LMitsubishiLANCER12-134 SP FWDL4 1.5L 1.6L 2.0LMitsubishiLANCER13-164 SP FWDL4 1.6LMitsubishiLIBERO VAN00-024 SP FWDL4 1.5L 2.0LMitsubishiMIRAGE98-034 SP FWDL4 1.5L 1.6L How to repair this transmission (Videos)Part 1 - TeardownPart 2 - Valvebody RebuildPart 3 - Clutch Assemblies and Seals ReplacementPart 4 -ReassemblyPart 5 FINALE -Reassembly Instruction manuals and useful linksLink typeSourceDescriptionpdfSonnaxValve Body Layout F4A41, F4A42, F4A51webSonnaxF4A41/42/51 2-3 Flare or Flare/Bump

Transmission general data The 4-speed automatic transmission CD4E has been used since 1994 on well-known FWD vehicles with engines 2.0 - 2.5 liters of Mazda such as 626, Tribute and MX6 (LA4A-EL). Ford used this transmission on the Probe, and later after some updates on Mondeo, Escape and Fiesta (named as the 4F44E according to a new Ford classification).This transmission became quite competitive according to the ratio price/quality and had been used until 2007 (was in production for 13 years). Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type4ATFWD2509,53,7Mercon V Technical issues and repair guidelines Experts assume that the design of the CD4E transmission is not good enough for 3 liter vehicles and profitable for repair services. This is due to the fact that CD4E is installed on long-living and unique vehicles, and also that this transmission is repairable and after some minor repair it operates for a long time. It is considered to be an American version of the 5HP19 transmission (on BMW-Audi-VW).Each overhaul of this transmission is accompanied by replacement of the filter. The filter has a felt membrane. ATF is changed every 60 thousand kilometers. The electrical part in the CD4E is considered to be simple and reliable. In some cases, transmission specialists only have to replace worn out block of solenoids. One of the most vulnerable and repairable components in this transmission is a double drum, (clutch basket) Forward/Direct (6 Cylinder). Friction components and steel discs of both drums get replaced in the process of the drum repair. It is recommended to check the bushing of this drum together with steel and cover plates. This bushing is the 1-st element to get worn-out and requires replacement to prevent vibrations and losses of oil pressure. Another common problem is the pump shaft failure caused by overloads. The oil pump often gets out of order when metal pieces appear in gears. The rubber of pistons rapidly wears out because of oil starvation and overheating. The kit of bushings is commonly ordered for repair of the CD4E transmission. Worn-out bushings in this automatic transmission is the sign of oil shortages and abnormal dynamic loads. In terms of design, the Forward planetary gear is considered to be another soft spot of the CD4E transmission. This planetary gear cannot endure ultimate loads from the engine. The reason is related to the bearing failure. Torque converters of the CD4E are quite sensitive for such engines. One of the most frequent problems is the wheel hub bushing wear-out. The problem is related to insufficient oil pressure, overloads and overheating. The torque converter preventive repair should be performed in the course of the first overhaul after travelling 130-150 thousand kilometers. One more issue characteristic to the “old” CD4E transmissions is related to wear-out of the differential “teeth”. It is advisable to check the differential condition during the overhaul and reassembly. Which cars run with this gearbox?BrandModelYearTypeEngineFordCONTOUR95-004 SP FWDL4 2.0L V6 2.5LFordESCAPE01-084 SP F/4WDL4 2.0L 2.3L V6 3.0LFordMONDEO00-074 SP F/4WDL4 2.0LFordPROBE94-974 SP FWDL4 2.0LMazda62694-024 SP FWDL4 2.0L V6 2.5LMazdaMX694-974 SP FWDL4 2.0L V6 2.5LMazdaTRIBUTE00-084 SP F/4WDL4 2.0L 2.3L V6 3.0LMercuryCOUGAR99-024 SP FWDL4 2.0L V6 2.5LMercuryMARINER05-084 SP F/4WDL4 2.3L V6 3.0LMercuryMYSTIQUE95-004 SP FWDL4 2.0L V6 2.5L How to repair this transmission (Videos)Teardown InspectionCD4E Teardown InspectionRebuild Part 1 - Transmission Repair Rebuild Part 2 - Transmission RepairRebuild Part 3 - Transmission RepairCD4E Quick Tip Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comScheme CD4Ewebwww.at-manuals.comSolenoid identification CD4E, LA4A-ELwebwww.at-manuals.comApplication chart CD4E, LA4A-ELpdfdrive.google.comRepair manual CD4E ATSG

Transmission general data Honda transmissions differ completely from the rest of automatic transmissions, because Honda does not use planetary gears. Honda transmissions are not complex in terms of design, have larger dimensions and as a result considered to be more robust. But automatic transmissions produced by Honda also have some vulnerabilities related to electronic gear shifting control: friction discs, solenoids, and the valve body. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type4ATFWD62,7Honda Z-1 Technical issues and repair guidelines The most well-known range of 4-speed 3-shaft transmissions M4TA - Honda (CR-V) with engines from 2 to 2.4 liters. Automatic transmissions Honda are notable for their simplicity and reliability. Because of this, many car owners neglect basic maintenance services such as ATF quality control and timely replacement of the filter. Subsequently it results in clogging of valves in the valve body and solenoids, oil starvation and rapid wear-out of sealing rings, frictions and bushings. 300-400 thousand kilometers is considered to be a standard mileage before the first overhaul for these Honda transmissions. Repair procedures The torque converter (TC) is the first component to be repaired in Honda automatic transmissions. A major repair with reassembly starts with change of transmission fluid and replacement of a metal filter. The main external filter is usually installed by specialists on old transmissions.The repair of this family of transmissions with the filter is performed with the help of ordered repair kit of gaskets and seals with friction elements and steel discs. Friction elements are frequently replaced separately and steel discs as a full kit. Masterkit is the fullest repair kit of friction elements and steel discs with kit of gaskets. Honda friction components usually operate for a long time, but after exhausting an enormous resource of frictions (above 300 thousand kilometers) or when these elements are soaked with burnt oil, then the change of all frictions would be the best option.Worn-out switching solenoids of linear pressure and the clutch lock-up solenoid are commonly replaced during repair procedures. The design of solenoids includes anodized plate element, which is likely to wear. This component is changed after running over 200 thousand kilometers. Which cars run with this gearbox?BrandModelYearTypeEngineHondaJAZZ08-124 SP FWDL4 1.5LHondaSTREAM02-064 SP F/4WDL4 1.7L How to repair this transmission (Videos)Honda Bmxa Teardown BMXA, Teardown Inspection Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comTransTec Manualpdfwww.at-manuals.comSchemepdfdrive.google.comTranstec BMXA manual

Transmission general data The French automaker PSA (Peugeot Citroen Association) in collaboration with Renault launched the mass-production of the 4-speed automatic transmission DP0 (also named as AL4) in 1999. The automatic transmission AL4 is intended for a FWD vehicles with engines from 1,4 up to 2 liters. The automatic transmission AL4-DP0 is a unique and successful solution of French engineers. The design of this transmission is very simple and well-balanced according to the principle «nothing extra». Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type4ATFWD21084LT 71141 Technical issues and repair guidelines The DP0 unit has a heat exchanger for oil cooling. All transmissions with the heat exchanger operate at a temperature close to critical. In summer time, the DP0 regularly overheats and has some problems with the electrical components, namely with the valve body. It is a constructive peculiarity of many automatic transmissions with the heat exchanger. After running 80 thousand kilometers its up to the auto owner to preserve this transmission from overheating. Friction components contaminate ATF, the dirt settles in the heat exchanger (which also operates as a filter) and as a result after critical contamination of the heat exchanger the oil does not have time to cool in case of the hot weather. Therefore, the valve body (and solenoids) start operating improperly. The more contaminated becomes the fluid, the higher the operating temperature and the lower efficiency of the valve body. The resource of this transmission before the overhaul (under the condition of careful and proper usage) may reach 150-200 thousand kilometers after well-timed repair procedures with reassembly and replacement of spare parts. After these procedures the transmsision resource may be prolonged up to 500 thousand kilometers. Soft spots of PD0 EPC and TCC solenoids are the most frequently replaced components of the DP0 transmission. Worn bushings are also often replaced by transmission specialists. The wear-out of bushings leads to the following chain reaction: bushings start leaking, packages do not have enough oil and the computer forces the ЕРС solenoid to open the channel to the full cross section, the pump operates under maximum load and the EPC solenoid rapidly wears. The operation with fluid shortage has a bad impact on friction components of the corresponding package. The valve body is a typical area for repair. The valve body is very sensitive to overheating and contaminated ATF. Overheating changes the metal plate geometry, valves wedge and springs become overloaded until they break down. Oil losses through worn-out joints lead to the pressure drop in the line, slipping and burning of friction components. The wear-out of one-sided friction discs occurs evenly, therefore all friction discs are replaced during the overhaul. Specialists recommend to replace Teflon rings of the rear cover. Brake bands (the pair F2 and F3) are replaced in the process of each overhaul of the transmission with burnt ATF. Servo pistons are replaced together with brake bands. The damaged pump cup (seal) is the most popular part for repair among seals and sealing strips. One of the most common problems takes place in the needle bearing located between the hub 570 and drum 554 in the Е2 package . The clutch package E2 (4th) is the most popular part for replacement among spare parts. Which cars run with this gearbox?BrandModelYearTypeEngineCheryA309-164 SP FWDL4 1.8L 2.0LCheryA506-104 SP FWDL4 2.0LCheryCHANCE134 SP FWDL4 2.0LCheryCOWIN 310-164 SP FWDL4 2.0LCheryDONGFANGZHIZI06-144 SP FWDL4 2.0LCheryDONGFANGZIHIZI12-134 SP FWDL4 2.0LCheryEASTAR A609-104 SP FWDL4 2.0LCheryNICHE134 SP FWDL4 2.0LCitroenC207-134 SP FWDL4 1.6LCitroenC306-164 SP FWDL4 1.6LCitroenC3 PICASSO11-164 SP FWDL4 1.6LCitroenC404-164 SP FWDL4 1.6L 2.0LCitroenC500-164 SP FWDL4 1.7L 2.0LCitroenC-TRIOMPHE06-134 SP FWDL4 2.0LCitroenDS309-164 SP FWDL4 1.6LCitroenELYSEE03-144 SP FWDL4 1.6LCitroenEVASION00-014 SP FWDL4 2.0LCitroenFUKANG05-084 SP FWDL4 1.6LCitroenPALLAS07-134 SP FWDL4 2.0LCitroenXANTIA00-014 SP FWDL4 1.8L 2.0L V6 2.9LCitroenXM04 SP FWDL4 2.0L 2.1L V6 2.9LCitroenXSARA/XSARA PICASSO00-114 SP FWDL4 1.6L 1.8L 2.0LKIA206 BESTARI06-094 SP FWDL4 1.4LNissan/DatsunPLATINA02-104 SP FWDL4 1.6LPeugeot200813-164 SP FWDL4 1.6LPeugeot20698-154 SP FWDL4 1.6LPeugeot20706-164 SP FWDL4 1.6LPeugeot20812-164 SP FWDL4 1.6LPeugeot300812-144 SP FWDL4 1.6LPeugeot30600-024 SP FWDL4 1.8L 2.0LPeugeot30701-154 SP FWDL4 1.6LPeugeot30807-164 SP FWDL4 1.6L 2.0LPeugeot40599-154 SP FWDL4 1.6LPeugeot406/406 COUPE00-054 SP FWDL4 1.7L 1.8L 2.0LPeugeot40704-114 SP FWDL4 2.0LPeugeot40810-164 SP FWDL4 1.6L 2.0LPeugeot80601-024 SP FWDL4 2.0LRelyV509-164 SP FWDL4 2.0LRenaultCLIO98-164 SP FWDL4 1.4L 1.6L 2.0LRenaultESPACE01-034 SP FWDL4 2.0LRenaultKANGOO97-164 SP FWDL4 1.4L 1.5L 1.6LRenaultLAGUNA03-074 SP FWDL4 1.8L 1.9L 2.0LRenaultMEGANE02-144 SP FWDL4 1.4L 1.5L 1.6L 1.9L 2.0LRenaultMODUS04-124 SP FWDL4 1.6LRenaultSAFRANE00-014 SP FWDL4 2.0L 2.2LRenaultSANDERO11-154 SP FWDL4 1.6LRenaultSCENIC00-114 SP FWDL4 1.5L 1.6L 1.9L 2.0LRenaultSYMBOL/THALIA00-134 SP FWDL4 1.4L 1.6LSamsungSM309-114 SP FWDL4 1.5L How to repair this transmission (Videos)Al4 Gear box , changing ValvesDP0 and AL4 valve bodyAL4(DP0) rebuild

Transmission general data The 5-speed automatic transmission AW55-50SN was developed by Aisin specialists at the end of the last century as an exclusive 5-speed automatic transmission for non-Toyota FWD vehicles with engines from 2 up to 3 liters. After update of the valve body and computer settings, this transmission as AF23 and AF33 was installed on GM models: Daewoo-Chevrolet (Captiva, Epica, Laketti ...), Saab, Opel and American Saturn and Suzuki. The testing of this unique transmission was performed since 2000 on Volvo cars (on C70, both the 40, 70 and S60s and S80s). Part of the design solutions for this tranmsission are adopted from its successful predecessor - the 4-speed AW50-40. The transmission was so successful that even its competitors installed AW55 for their popular cars, simultaneously releasing their RE5R05A (JR507E) (Nissan-Jatсo) and 5L40E / 5L50E (GM-Europe). Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type5ATFWD3307,13,5Type T-IV Technical issues and repair guidelines The torque converter repair after running 200 thousand kilometers is a routine procedure. Repair kits of gaskets and seals for this transmission are produced by many manufacturers. Frictions are replaced by whole packages. Packages of clutches and brakes are designed in a fairly balanced manner and wear out at about the same time. The complete kit of frictions is also ordered when linings of remaining (unburned) clutches are soaked with burnt oil.The most popular parts for replacement are the pump seal and the pump cover bushing. The first problem occurs when operating in the oil starvation mode and with the wornout torque converter. Almost each overhaul is accompanied with the torque converter cutting and its subsequent rebuilding. The lock-up friction lining wears out quite rapidly causing many issues in the AW55-50. There are many signs of the faulty valve body, but the reason for the majority of premature (before 150-200 thousand kilometers) problems of the mechanical components in this transmission lies in insufficient pressure of the ATF coming from the valve body. Dirt in the ATF and high temperatures, wear out and clog channels of valves and solenoids of the valve body. Worn-out areas are clogged with dirt and plungers get wedged, so the ATF does not reach clutch packages and the torque converter lock-up.The valve body repair and cleaning should be performed as early as possible (when you notice the first signs of improper operation) in order to avoid typical and fatal problem, namely the valve body housing wear-out. For rebuilding of transmission units in "old" cars, specialists usually order the kit of frictions, steel discs, and repair kit of gaskets and seals (overhaul kit). At the same time specialists replace the brake band (because friction linings are soaked with burnt oil). The pressure shortage from oil, coming from clogged valve body may have a negative impact on bushings. The pump cover bushing is the first to wear out. In rare cases planetary gear bushings are pressed out. Mechanical elements of the AW55-50SN transmission are very reliable or even may be called “flawless”. The evidence of reliability lies in the factor, that for 90% cases of transmission components repair, specialists order only the repair kit of bushings. But if a driver frequently overloads the transmission, then repair specialists sometimes have to rebush or replace worn-out rear planetary gear. Which cars run with this gearbox?BrandModelYearTypeEngineChevrolet/GMEQUINOX04-095 SP F/4WDV6 3.4LOpel / VauxhallANTARA06-165 SP F/4WDL4 2.0L 2.4L V6 3.2LOpel / VauxhallSIGNUM03-085 SP F/4WDL4 2.2L V6 3.0L 3.2LOpel / VauxhallVECTRA02-095 SP F/4WDL4 2.2L V6 3.0L 3.2LPontiacTORRENT04-095 SP F/4WDV6 3.4LSaturnION03-045 SP FWDL4 2.2LSaturnVUE02-035 SP F/4WDV6 3.0LSuzukiXL-704-085 SP F/4WDV6 3.6L How to repair this transmission (Videos)AW55-51SN / RE5F22A Teardown InspectionAW55-51SN / RE5F22A Solenoid RepairAW55-51SN / RE5F22A Solenoid Repair PART 2AW55 Solenoid Adjustment, Diagnosis and Repair AW-55SN Linear Solenoid RepairAW55-51SN / RE5F22A Transmission Instruction manuals and useful linksLink typeSourceDescriptionpdfSonnaxValve Body Layout AW5550SNvideoSonnaxAW 55-50/51SN Solenoid Bracket Identification & InstallationwebSonnaxAW 55-50/51SN Pressure Tap LocationswebSonnaxAW 55-50 Differences Between Manufacturers Part 2webSonnaxAW 55-50 Differences Between Manufacturers Part 1

Transmission general data The automatic transmission A6LF1 is a part of 6-speed transmissions family (A6LF2/3, A6GF1, A6MF1 /2) produced by Hyundai. This transmission is an expensive and comfortable alternative to the 5-speed automatic transmissions A5HF1 (A5GF1). These transmissions had been tested since 2009 on a limited series of Hyundai Avante HD\MD and after 2-3 years of modifications were installed on luxury FWD and AWD cars Hyundai (Sonata, Opirus...) and Kia models with engine capacity from 1.4 up to 3.8 liters. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type6ATFWD/4WD3237,84SP-IV Technical issues and repair guidelines Aggressive accelerations and critical overheats may lead to replacement of rings and valve body gaskets. After covering over 150 thousand kilometers replacement of the whole repair kit is considered to be a routine procedure. The aim of this measure intended for protecting solenoids which have to deal with higher loads caused by increasing oil leakages through sealings. The main signs of the problem are the following: wear-out of the torque converter lock-up, rapidly contaminating transmission fluid, and issues with gear shifting. The valve body disassembly usually indicates critical contamination and sticking of valves. Insufficient oil pressure (caused by problems with the valve body or leaks of ATF through rings, jointing edges and as a result wear-out of solenoid valves) in most cases leads to burning of friction elements with Overdrive and Underdrive discs, but often drivers neglect this problem, resulting in replacement of all friction clutches and steel discs which operated in burnt ATF. Contaminated ATF from this package damages corresponding valves and solenoids of the valve body. The vulnerability of the A6MF1/2 transmissions resides in burning of clutches 3-5\R and 2-6. For replacement of these burning packages, Hyundai released the kit of "Power Pack" friction elements with steel and bearing discs.The Overdrive is also frequently replaced by repair specialists. The problem is explained by overloads caused by contaminated fluid, resulting in wear-out of teflon rings on the rear cover and pressure losses in packages.A typical problem for Hyundai differentials is related to damage of splineways of the differential body under the condition of longtime and frequent wheels slippages. During the first years of testing, the main problem lies in the valve body and solenoids (problem identical to ZF transmission ZF6HP from which the valve body operation principle was adopted). The most failure-prone solenoids are the following: 1. EPC solenoid 2. TCC solenoid. 3. Shifting solenoids Another frequent problem for this transmission (as well as for other 6-speed automatic transmissions) is related to the torque converter clutch wear-out. The more often drivers use aggressive accelerations, the closer this transmission to the repair shop. The valve body may be considered a soft spot in the electrical part of the A6MF2 \LF2 transmission. As in all 6-speed automatic transmissions, the A6LF1 valve body is very sensitive to overheating and contaminated ATF, which first of all may be provoked by wear-out of the torque converter friction and clutch packages and in chain order lead to (pressure shortage from solenoids and the valve body) more rapid wear-out of frictions in packages of clutch and braking. Problems at the early stage are usually solved by repair and cleaning of the valve body and solenoids, opening of the torque converter for replacement of spare parts. In more complex repair cases, transmission specialists have to repalce solenoids. Which cars run with this gearbox?BrandModelYearTypeEngineHyundaiAZERA116 SP FWDV6 3.3LHyundaiGRANDEUR11-166 SP FWDV6 3.0LHyundaiMAXCRUZ13-166 SP F/4WDV6 3.3LHyundaiSANTA FE12-166 SP 4WDL4 2.0L V6 3.3LHyundaiTUCSON10-166 SP FWDL4 2.0LInokomTUCSON15-166 SP FWDL4 2.0LKIACARNIVAL14-166 SP FWDV6 3.3LKIAK7166 SP FWDV6 3.0LKIAOPIRUS11-156 SP FWDV6 3.0LKIAOPTIMA13-166 SP FWDL4 2.0LKIASORENTO14-166 SP F/4WDV6 3.3L How to repair this transmission (Videos)Sportage A6lf1A6LF1/2/3 Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comScheme A6LF1pdfSonnaxValve Body Layout A6GF1, A6LF1/2/3, A6MF1/2

Transmission general data The 6-speed automatic transmission A761E, (A760E -F \Н) with longitudinal positioning is similar to the 5 speed А750 in terms of design. It has been tested since 2003 with 8-cylinder engines of Toyota Celsior and with Lexus LS430. This powerful 6-speed RWD transmission was produced in pair with economical А960, intended for lower torque (200-310 Nm). This automatic gearbox together with А761-А960 are direct competitors of ZF 6HP26 and 6HP19 units. A760E is a basic modification for RWD units, - A760F – for AWD SUVs of Toyota and Lexus, - A760Н – is a rare modification for 4WD light motor vehicles. - in 2006, the upgraded А761 unit was released. It is notable for perfect operational parameters of a new valve body and solenoids. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type6ATRWD/4WD420114Toyota WS Technical issues and repair guidelines All rear-drive Aisin transmissions are distinguished by design reliability, especially those units which are installed on Lexus cars, therefore this transmission is rare in the repair service and there is no much information on the overhaul statistics. Problems of the А761 unit are related to already known issues with А750Е. These problems are caused the fluid overheating or its contamination by friction dust. Many experts consider А760 for rear-drive cars to be extremely durable as all Aisin automatic transmissions. Components of this transmission can operate properly for more than 300 thousand kilometers without overhaul, under the condition that they operate with comparatively clean oil. Typical issues in A761 Commonly, together with spare parts repair specialists also replace the package of friction discs, burnt as a result of pressure shortage caused by clogging of the solenoid or valve body. All frictions are usually replaced in case of burnt transmission fluid. When we talk about the most problematic elements in first generations of the А750-А761 family, we should point out relative dependency of electrical components of this tranbsmission (valve body) from from the fluid condition and wear-out of the torque converter lockup. All problems with shifting are usually related to spoilt and worn-out valve body. Therefore, any diagnostics and rebuilding procedures start with testing and cleaning of the valve body and solenoids. All valve body problems start with worn-out elements of the torque converter. The torque converter is repaired as well. Valve bodies for А750, А761 and А960 are identical from the outside. But the internal design, computer settings and solenoids (as well as their quantity) have been constantly modified during testing, therefore selection of solenoids for replacement (as well as valve body selection) is performed according to VIN-code. The number 8870 is displayed on plates of the А761 transmission.The valve body replacement for this unit is relatively rare in comparison with European manufacturers on similar automatics (722.6 and ZF-6HP26). Generally, reassembly and cleaning of the valve body and cleaning-replacement of solenoids are performed when repairing the А761 unit. First and foremost, repair specialists have to replace solenoids. These solenoids have the valve, receiving the main load from contaminated fluid coming from the torque converter. Each replacement procedure of solenoids is accompanied by the torque converter repair and replacement of the lock-up friction. Which cars run with this gearbox?BrandModelYearTypeEngineLEXUSLX116 SP 4WDV8 4.6LToyotaCELSIOR03-066 SP RWDV8 4.3LToyotaSEQUOIA09-126 SP R/4WDV8 4.6L How to repair this transmission (Videos)A750 A761 Introduction Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comManual A760Epdfwww.at-manuals.comVacuum test valvebody A760Epdfwww.at-manuals.comScheme A760EpdfSonnaxValve Body A760HpdfSonnaxVacuum test A760E/F/H, A761EwebSonnaxDiagnosing Solenoid Performance Faults in A761webSonnaxToyota A750E-A761E Identification Guide

Transmission general data This 5-speed automatic transmission А750Е\ F produced by Aisin Warner has been used since 2002 for powerful rear- and full-drive SUVs Land Cruiser, 4Runner and Lexus. The А750F (4WD) is the most frequently repaired transmission mated to engines with capacity equal to 4.7 liters. The А750 transmission replaced the 5-speed А650Е from the previous generation and “invincible” А340 series. In terms of design, this transmission is similar to 6-speed А761 and А960 units. The А750 modification can be paired with 1GR-FE (for lower torque) and 2UZ-FE engines in 4WD cars. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type5ATRWD/4WD485124Toyota T-IV Technical issues and repair guidelines This transmission has almost flawlessly matched gear ratio, tested cooling and ATF heating systems. The acceleration in the sport mode turns on slipping torque converter lockup starting at the 3-rd gear. It doubles the time before the torque converter repair in comparison with competing 6HP26 units. The fluid change (Toyota WS) and filter replacement in A750 is performed with the help of partial and full replacement methods. The transmission electrics has delicate settings and sensitive to the oil level. Solenoids of this transmission can exhaust its resource prematurely and often get replaced, especially in gearboxes during first two years of series production. But in general, this transmission as well as majority of rear-drive Aisin automatic transmissions was produced to be "invincible". Typical problems in A750E The most common ordered repair kits for the first overhaul of the А750F unit, includes the following: - Kit of gaskets and seals, Overhaul Kit - Kit of all friction components Overhauls of long-time neglected transmissions are notable for the fact that friction components should be replaced with all solenoids. The first package that gets burnt with cover plates: Forward С1 frictions. Then comes the turn of the В1 braking package.Other frequently burning frictions are located in Direct, C3 and 2nd brake packages. Different problems with the torque converter, valve body and solenoids may occur as a result of long-time overheating or aggressive driving style on the off-road territory or on snow after 70 - 80 thousand kilometers.Transmission operation with worn-out torque converter clutch may lead to vibrations and fluid leakages through the pump seal. At the same time, the problem with the pump bushing occurs, and later you will have to deal with the pump failure. Valve bodies of А750, А761 and А960 have been constantly modified, improving their design, therefore selection of valve bodies and solenoids for replacement is performed specifically for each car according to its VIN-code. In general, the А750F unit is adjusted quite accurately for the torque converter and the valve body. Afterwards, you can drive for 150-200 thousand kilometers without serious problems for car owners, if ATF condition is controlled. Which cars run with this gearbox?BrandModelYearTypeEngineToyota4 RUNNER03-085 SP R/4WDV6 4.0L V8 4.7LToyotaMARK X04-095 SP R/4WDV6 2.5LToyotaSEQUOIA05-085 SP R/4WDV8 4.7L How to repair this transmission (Videos) A750E/F Valve Body Installation 750, 760, AB60 TRANSMISSION FILLA750E/F Transmission ServiceA750 A761 Introduction Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comManual A750Epdfwww.at-manuals.comVacuum test valvebody A750Epdfwww.at-manuals.comScheme A750Ewebwww.at-manuals.comStall test A750Ewebwww.at-manuals.comClutch application A750EpdfSonnaxValve Body Layout A750EpdfSonnaxVacuum test A750E/FwebSonnaxDiagnosing A750E/F 2-3 Flare After OverhaulwebSonnaxToyota A750E-A761E Identification Guidepdfdrive.google.comA650E_A750EF_A761E manual

Transmission general data The 4-speed automatic gearbox Ford A4LD was designed for RWD vehicles (Explorer, Mazda pickup cars and many others) with engines from 2.5 up to 4 liters. This family of transmissions is manufactured in Bordeaux, France. After the update in 1995, this gearbox was provided with an electronic control, the letter "Е" was added to its name (A4LD-Е). In 1997, this gearbox became fully equipped with an electronic control unit and changed its name in accordance with a new classification- 4R44E,and after the update of several units, the 4R55E modification was released. Spare parts for repair of these gearboxes are interchangeable. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type4ATRWD9,54Dexron VI Technical issues and repair guidelines The torque converter in these transmissions is the first component to be replaced during repair procedures. In most cases, transmission specialists order the Masterkit repair kit to fix this transmission. This kit includes all gaskets and seals, rings and friction components with discs, except filter and brake bands, which are ordered separately. Repair kits contain all necessary gaskets and spare parts of the valve body, other gearbox components and pan, to replace the old rubber, paper gaskets and plastic of the transmission, which served for more than 10 years. This transmission is handed in for repair after failures of the brake band О.D.\Intermediate and the drum Overdrive. The drum Overdrive is also considered to be a soft spot and gets out of order together with the brake band and Servo piston of the brake band. When solving the abovementioned problems, specialists also replace the brake band piston INTM./ O.D. Vibrations and overheating of this drum may lead to replacement of not only friction elements of the package Overdrive, steel discs, and bearing disc, but also of the pump support.In many cases, packages get burnt because of worn-out pump bushing and insufficient pump productivity. This problem can be detected by means of the leaking seal. The repair of electrical components consists of replacement of EPC solenoids, solenoids shift (4), solenoids of the torque converter locking (TCC), which reached the end of their service life.The valve body often causes insufficient (on bushings) or excessive pressure. The valve body gets clogged with friction dust from the worn torque converter. If the torque converter friction is worn out to the glue layer, then it significantly speeds up the wear-out and clogging of solenoids and the valve body.The most replaceable clutch discs are friction elements of the Forward Clutch package and corresponding steel discs, which twofold outrun the package Direct in sales, other friction elements are replaced more rarely. Which cars run with this gearbox?BrandModelYearTypeEngineFordAEROSTAR954 SP R/4WDV6 3.0L 4.0LFordTRANSIT04 SP RWDL4 2.5LMazdaNAVAJO91-944 SP RWDV6 4.0LMazdaPICKUP944 SP RWDL4 2.3L V6 3.0L 4.0LMCWMETROCAB00-014 SP RWDL4 2.5L How to repair this transmission (Videos)Teardown Inspection5R44E 2-3 shift5R55E Valve Body Shift Kit Installationservo bore problems Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comRemove and Install A4LDEwebwww.at-manuals.comScheme C-3webwww.at-manuals.comClutch applicationpdfSonnaxValve Body Layout 4R/5R44E, 4R/5R55E pdfSonnaxVacuum test 4R44E-5R55E

Transmission general data The 4-speed automatic transmission A4AF-3, A4BF-3 was designed in 2000 by Hyundai specialists and was supposed to become a successor of the A4AF1 for FWD medium vehicles such as Hyundai Matrix, Elantra, Accent, with engine up to 2 liters. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type4ATFWD1906,34SP-III Technical issues and repair guidelines This transmission is considered to be very reliable, enduring long-time operation with contaminated transmission fluid. After a proper overhaul with spare parts reassembly specialists can give 1-2 years warranty. Many spare parts for A4AF3, A4BF3 transmissions are interchangeable with the whole A4AF family of automatic transmissions.The list of common spare parts includes the following: closed filter with felt, which is replaced in the process of each reassembly of the transmission that covered 150- 180 thousand kilometers; the brake band, which is replaced with the whole set of friction components when smelling the burnt ATF (Brake bands for engines up to 1.8 liters and over 1.8 liters are different), the brake band is replaced with the seal when operating for a long time with worn-out spare parts of the torque converter; in many cases specialists order the kit of bushings for the overhaul. Seal boots are unified and can be applied for all relative automatic transmissions from КМ175 to F4A33, they are ordered during each rebuilding. If seals are replaced, but the torque converter is left untouched, then after a short time the seal will start leaking again and, as a result, it will be required to reassemble the oil pump. Friction elements in the Direct Clutch\ Forward packs burn 3 times more frequently. In most cases, all friction components are ordered for complete overhaul. Another problem of the A4AF1 became a real “headache” for specialists in the process of the A4BF3 transmission repair: the drum gets burnt in each 5-th automatic transmission which comes to repair services, because of worn bushings and consequent oil leakage.Typical design problem of the Overdrive unit lies in damage of bearings caused by side loads from the differential. Specialists often have to repalce the whole set of 6 solenoids and wiring. Even if the problem occurs in only one solenoid, technicians have to replace all of them because of short resource of other solenoids.Sometimes the problem of one of the linear pressure solenoids may lead to harsh shifting or forced actuation of the 3-rd gear without error codes. Problems usually lie in the fact that the solenoid valve wears out the channel because of contaminated ATF, starts hovering and at some moment gets wedged. Cleaning only contributes to the problem and the repair does not cover expenses. Generally this transmission is reliable like Hyundai cars when avoiding unnecessary overloads and overheating. Which cars run with this gearbox?BrandModelYearTypeEngineHyundaiATOZ01-124 SP FWDL4 1.1LHyundaiAVANTE00-164 SP FWDL4 1.6LHyundaiAVANTE XD00-064 SP FWDL4 1.5L 1.6L 1.8LHyundaiAVEGA07-104 SP FWDL4 1.5LHyundaiCLICK02-104 SP FWDL4 1.3L 1.4L 1.5L 1.6LHyundaiGETZ04-084 SP FWDL4 1.3L 1.4L 1.6LHyundaiLAVITA01-074 SP FWDL4 1.5L 1.6LHyundaiSONATA01-054 SP FWDL4 2.0LHyundaiVERNA00-114 SP FWDL4 1.3L 1.4L 1.5L 1.6LKIAAVELLA00-024 SP FWDL4 1.3L 1.5LKIACLARUS00-024 SP FWDL4 1.5LKIAFORTE03-164 SP FWDL4 1.6L 1.8LKIAQIANLIMA02-104 SP FWDL4 1.4LKIARIO05-164 SP FWDL4 1.4L 1.6LKIASHUMA00-014 SP FWDL4 1.5L 1.8LKIASPECTRA00-044 SP FWDL4 1.5L 1.8LZhonghuaFSV13-154 SP FWDL4 1.5LZhonghuaJUNJIE124 SP FWDL4 1.6L How to repair this transmission (Videos)A4AF3 With Code P0734 Instruction manuals and useful linksLink typeSourceDescriptionpdfAtraA4BF2/A4AF3 Problems Before and After Rebuildpdfautomaticchoice.comScheme A4AF3

Transmission general data The range of 4-speed of automatic transmissions А340 (also known as AW30-40LE /-70LE according to Aisin classification) has been on the market since 1985 on RWD and 4WD Toyota Land Cruiser with the engine capacity from 2.5 up to 4 liters. The А340 unit is a middle class transmission which stands next to the range А40 of the class "mini".Toyota used the А340 series for all other powerful cars: Pickup, 4-Runner, Mark II, Hilux, Hiace, Previa, etc.There is a large number of modifications of А340 Series for engines with 2.5-3.2 liters capacity.The AW30-41 modification and 30-43 is still in demand as not expensive, low-maintenance, robust gearbox for "work horse" cars. Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type4ATRWD300114Toyota T-IV Technical issues and repair guidelines Each modification in this transmission family had some updates in the electrical part (linear solenoids) of the valve body and torque converter.This transmission is quite simple, balanced and has a huge resource reserve. The repair of this gearbox usually takes place in cars with high mileage and includes replacement of worn-out spare parts. It is almost always the case that the torque converter of this transmission is handed in for repair. Operating with the worn-out lockup leads to the output shaft beating and excessive side load on the pump, seal, and bushing. Operation of the A340-equipped car with contaminated fluid results in wear-out of bushings through which the oil leaks out leading to main pressure losses. Almost all bushings are replaced together with rings and gaskets included in the repair kit. Firstly, the pump bushing gets out of service. Because of damaged bushings the pump may have performance efficiency problems leading to the oil pressure shortage in packages, therefore friction components of packages primarily involved in operation start slipping and get burnt.Commonly, frictions (with steel discs) of Forward package get burnt. The brake band is standard for all modifications. It is replaced when the car comes to repair with burnt fluid. The replacement of solenoids is common for old cars (produced before 1998). Which cars run with this gearbox?BrandModelYearTypeEngineKIAPREGIO00-034 SP RWDL4 3.0L How to repair this transmission (Videos)A340E Teardown340E MistakeAW4 TRANSMISSION TEARDOWNA340 Valvebody Installation InstructionsBasic Hydraulic Operation Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comScheme A340webwww.at-manuals.comSolenoid identification A340webwww.at-manuals.comSolenoid/component application chart A340webwww.at-manuals.comClutch application A340pdfSonnaxValve Body Layout A340E, A340Fpdfdrive.google.comA340E Service informationwebSonnaxToyota A340E/F Identification Guide