Honda
Source-verified model
Honda B7XA
The 4- speed automatic transmissions BAXA had been installed in Honda Accord since 1998 until 2002 and in Acura with the engine capacity 2.3 liters since 1998 until 1999. The list of construction peculiarities of BAXA transmission includes: 6 solenoids, 2 pressure sensors, and lack of overrun clutches. The design concept of solenoids helps to manage the shift overlap for upshifts and downshifts.
Speeds
4
Type
AT
Drive
FWD
ATF capacity (L)
6,1
ATF change (L)
2,7
ATF type
Honda Z-1
Other and alternative codes of this transmission
B7XA
BAXA
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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Differential Bearing Damage
Differential bearing failure is most common; bearing chips bypass filters and destroy aluminum and plastic components.
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Needle Bearing Shaft Failure
Needle bearings on shafts wear out; identified by transmission noise disappearing in Park or Neutral.
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Noise Disappears in Park
Transmission noise ceases when shifted to Park or Neutral; indicates needle bearing damage on shafts.
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Slap Noise and Oil Leaks
Slap noise over road bumps, large driven shaft clearance, and oil leaks from driving gear seals indicate bearing wear.
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2nd Gear Clutch Wear
Clutch pack wear in 2nd gear; vehicle may operate long-term but causes slipping and jolts.
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Slipping in 2nd Gear
Transmission slips during engagement of 2nd gear, indicating worn 2nd gear clutch pack.
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Jolt When Car Stops
Noticeable jolt felt when vehicle comes to a stop, associated with 2nd gear clutch wear.
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Jolt Shifting D to 2
Harsh jolt when shifting from D to 2 with engine running, brake depressed, and vehicle stationary.
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About this transmission
Transmission general data
The 4- speed automatic transmissions BAXA had been installed in Honda Accord since 1998 until 2002 and in Acura with the engine capacity 2.3 liters since 1998 until 1999. The list of construction peculiarities of BAXA transmission includes: 6 solenoids, 2 pressure sensors, and lack of overrun clutches. The design concept of solenoids helps to manage the shift overlap for upshifts and downshifts.
- Honda Accord; 98-00; L4 2.3L; Honda BAXA; ATF Capacity/Change: 6.4/6.1 2.9/2.7
Technical issues and repair guidelines
The list of commonly replaced spare parts in this transmission includes two typical problems: wear-out of clutches of the 2-nd gear and damage of bearings. With worn-out clutches the car can operate for quite a long time, but the damage of bearings leads to non-operability of all transmission units. Bearing chips easily get through filters and penetrate aluminum transmission parts, plastic ring gaskets, and literally “eat” transmission components. The differential bearing is damaged in most cases, and sometimes needle bearings on shafts.
Wear-out of the 2-nd gear has the following symptoms:
1. Slipping when switching on the 2-nd gear
2. Jolt when stopping the car
3. Experiencing a jolt when shifting from mode D to 2 (when the car is stopped with started engine and depressed brake pedal).
The wear-out of bearings is identified with the help of following signs:
1. The sound of transmission disappears when shifting gear in “Park” or “N” mode. This symptom indicates damage of needle bearings in shafts.
2. Slap noise in chassis when running over high spots on the road, a large clearance of the transmission driven shaft, oil leakages from seals of driving gears.
Transmission specialists recommend the following measures to prevent abovementioned problems:
1. Regular change of ATF and installation of additional radiator cooling system can really help in extending the service life of BAXA transmission.
2. When first signs of the transmission malfunction are detected, it is required to dissemble transmission and replace clutches, ring gaskets, and bearings.
Vehicle fitment explorer
Confirmed vehicle applications. Every row is drawn from our source-verified fitment database.
| Make | Model | Year | Drive | Engine |
|---|---|---|---|---|
| Honda | ACCORD | 98-02 | 4 SP FWD | V6 3.0L |
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