General Information

If the clutch or the brake band shows a sign of slippage or shifting sensation is not correct, the line pressure should be checked.
- Excessive shocks during upshifting or shifting takes place at a higher point than under normal circumstances, may be due to the line pressure being too high
- Slippage or inability to operate the vehicle may, in most cases, be due to loss of oil pressure for the operation of the clutch, brake band or control valve

1. Line pressure measurement (under no load)

CAUTION:
- Before measuring line pressure, jack-up all wheels.
- Maintain temperature of ATF at approximately 50° C (122° F) during measurement. (ATF will reach the above temperature after idling the engine for approximately 30 minutes with select lever in "N7" or "P".)

2. Line pressure measurement (under heavy load)

CAUTION:
- Before measuring line pressure, apply both foot and parking brakes with all wheels chocked (Same as for "stall" test conditions).
- Measure line pressure when select lever is in "R", "2" with engine under stall conditions.
- Measure line pressure within 5 seconds after shifting the select lever to each position. (If line pressure needs to be measured again, allow the engine to idle and then stop. Wait for at least one minute before measurement.)
- Maintain the temperature of ATF at approximately 50° C (122° F) during measurement. (ATF will reach the above temperature after idling the engine for approximately 30 minutes with the select lever in "N" or "P".)