Line Pressure Test

LINE PRESSURE TEST
This test is to check oil pressure system for operation by measuring oil pressure in oil pressure line. Make sure to perform this test only when transmission fluid is at normal operating temperature.

NOTE:
^ Make sure that transmission fluid level is between FULL HOT and LOW HOT marks on oil level gauge at normal operating temperature of fluid.
^ Check that transmission is free from fluid leakage.





1. With engine at stop, remove plug and connect oil pressure gauge to plug hole.
Special Tool (A): 09925-37810 or equivalent.
2. Install tachometer.
3. Apply parking brake and block vehicle wheels.
4. With selector lever shifted to P. start engine.
5. Depress brake pedal fully.
6. Shift selector lever to D and check oil pressure with engine running at idling speed and at stall speed respectively.
7. Repeat the same check as in step 6 with selector lever shifted to R.

CAUTION: Do not run engine at stall more than five seconds continuously, for oil temperature may rise excessively high.





8. If line pressure is within respective specifications below, oil pressure system is in good condition.





9. Possible causes for out-of-specification line pressure are indicated in the above image. Check each part which is suspected to be the cause.





10. Reinstall plug and tighten it to specification.
Tightening Torque
(a): 6 - 9 Nm (54-78 inch lbs.).