Honda
Source-verified model
Honda BGHA
This family of 5-speed automatic transmissions Honda includes several sub-groups. A typical order for reassembly of 5-speed automatic transmission in old cars includes the following:
Speeds
5
Type
AT
Drive
AWD
ATF capacity (L)
7,9
ATF change (L)
3,3
ATF type
Honda Z-1
Other and alternative codes of this transmission
BGHA
verified naming
OEM designation
source name
Common problems & symptoms
Problems and symptoms reported for this transmission, compiled from repair sources. Not a complete list.
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Low Hub One-Way Clutch
Gets wedged due to overloading, causing sun gear breakage in the transmission.
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Sun Gear Breakage
Sun gear breaks as a result of the Low Hub one-way clutch seizing under overload conditions.
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3rd Drum Rear Damage
High torque from 3-liter engine damages the rear drum of the 3rd clutch package.
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3rd Drum Spring Breakage
Spring inside the 3rd drum breaks, causing damage to the entire clutch unit assembly.
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EPC Line Pressure Solenoid
EPC solenoids fail due to ageing and overheating from intensive operation cycles.
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Rear Bearing Damage
Powerful engine output causes premature wear and failure of rear transmission bearings.
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Accumulator Jar Valve Body
Accumulator jar in valve body has rubbing shafts with Teflon rings causing pressure loss.
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Transmission Line Pressure Loss
Pressure loss in valve body due to worn Teflon rings on accumulator shafts affecting shift quality.
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About this transmission
Transmission general data
This family of 5-speed automatic transmissions Honda includes several sub-groups. A typical order for reassembly of 5-speed automatic transmission in old cars includes the following:
- - Repair kit of gaskets and seals
- -Kit of friction components
- - Filter
- - Electrical parts and Low block
Spare parts for the 5-speed automatic transmission designed by Honda should be selected according to the VIN-code.
Technical issues and repair guidelines
In many cases, the Low Hub one-way clutch gets out of order because of overloadings. It gets wedged and the sun gear breaks. High torque from 3-liter engine damages the rear drum of the 3-rd package (3rd Drum). The spring breaks, that causes damage to the entire unit. Specialists also replace piston, a thin spring holder, retaining ring. In addition a powerful engine damages rear bearings.EPC line pressure solenoids (which operate very intensively) get out of order because of ageing and overheating. Another soft spot of the valve body is the jar of accumulators, rubbing shafts with teflon rings that leads to the pressure loss.
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