Operation CHARM: Car repair manuals for everyone.

Line Pressure Test





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°)






3. Install pressure gauge to line pressure port.

- D, 3, 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.





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





Line pressure: