FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Line Pressure Test


^ Tools Required
- J 35752 Oil Pressure Gauge Adapter
- J 21867 Pressure Gauge

Important: Perform this test should only at a normal operating fluid temperature of 70 - 80°C (158 - 176°F).

1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Remove the line pressure tap bolt from the transmission case.
3. Install J 35752 into the line pressure tap.
4. Install a 90 degree male elbow inverted flare brass fitting with a 3/16 inch tube OD and a 1/8 inch male pipe thread into J 35752.
5. Install J 21867 into the brass fitting.
6. Lower the vehicle.
7. Route the J 21867 hose over the front fender and through the driver's window so that you can read the hose from the passenger compartment.
8. Apply the parking brake and block the vehicle wheels.
9. Press the brake pedal fully and start the engine.

Caution: For the following four steps, procedures for testing line pressure at idle and stall speeds, the brake pedal must be fully pressed throughout the measurement procedure. Failure to do so could result in personal injury and/or property damage.

10. Place the manual selector to Reverse (r) and record the line pressure at idle speed (750-850 RPM).

Notice: DO NOT run engine at stall speed for more than five seconds continuously or engine oil and transaxle fluid temperatures may become excessively high.

11. With the manual selector still in Reverse (r), press the accelerator pedal fully (wide open throttle) and record the line pressure.
12. Release the accelerator pedal and let the engine return to idle speed.
13. Move the manual selector to Drive (D) and record the line pressure at idle speed (750-850 RPM).
14. With the manual selector still in Drive (D), press the accelerator pedal fully (wide open throttle) and record the line pressure.
15. Place the selector lever in the Park (P) position and turn the ignition switch to LOCK.
16. Remove J 21867 from the passenger compartment.
17. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
18. Remove J21867 from the brass fitting.
19. Remove the brass fitting from J35752.
20. Remove J 35752 from the line pressure tap.

Notice: Refer to Fastener Notice in Service Precautions.

21. Install the line pressure tap bolt into the line pressure tap at the rear of the transaxle.
^ Tighten the line pressure tap bolt to 17 Nm (12 ft. lbs.).
22. Lower the vehicle.

Evaluation
Compare the line pressure test results with the Line Pressure Results in the following table. If the line pressure is not as specified, refer to the Line Pressure Test Diagnosis for further evaluation.





Line Pressure Results





Line Pressure Test Diagnosis