Measure Line Pressure
Measure Line Pressure1. Fully apply the parking brake and chock the four wheels.
2. Start the engine and check idling rpm.
3. Shift into "D" range, step down strongly on the brake pedal with your left foot and, while manipulating the accelerator pedal with the right foot, measure the line pressures at the engine speeds specified in the table.
4. In the same manner, perform the test in "R" range.
Evaluation
1. If the measured values at all ranges are higher than specified:
^ Pressure control solenoid defective
^ Primary regulator valve defective
2. If the measured values at all ranges are lower than specified:
^ Primary regulator valve defective Oil pump defective
^ Pressure control solenoid defective
3. If pressure is low in "D" range only:
^ "D" range circuit fluid leakage
4. If pressure is low in "R" range only:
^ "R" range circuit fluid leakage