Automatic Transmission/Transaxle: Testing and Inspection

Pressure Testing
- Location of line pressure test port
- Line pressure plugs are hexagon headed bolts.
- Always replace line pressure plugs as they are self-sealing bolts.






LINE PRESSURE TEST PROCEDURE

1. Check A/T and engine fluid levels. If necessary, add.
2. Warm up engine until engine oil and A.T.F. reach operating temperature after vehicle has been driven approx. 10 minutes.
A.T.F. operating temperature:
50 - 80°C (122 - 176°F)






3. Install pressure gauge to line pressure port.
- D, 2 and 1 ranges -






- R range






4. Set parking brake and block wheels.
- Continue to depress brake pedal fully while line pressure test at stall speed is performed.






Pressure Testing
5. Start engine and measure line pressure at idle and stall speed.
- When measuring line pressure at stall speed, follow the stall test procedure.






1990-96







1997-98

Line Pressure







Judgement