Line Pressure Test

Special Tool(s):

Material:

The special tests are designed to aid the technician in diagnosing the hydraulic and mechanical portion of the transaxle.

Line Pressure Test

CAUTION: Carry out the Line Pressure Test prior to carrying out the Stall Speed Test. If line pressure is low at stall, do not carry out the Stall Speed Test or further transaxle damage will occur. Do not maintain wide open throttle in any gear range for more than 5 seconds.

NOTE: Certain sensor failures may cause high line pressure as a result of failure mode effect management (FMEM) actions. Make sure that self-test and electrical repairs have been carried out, or test results may be incorrect.

This test verifies that the line pressure is within specifications.

1. Disconnect the line pressure switch electrical connector.





2. Remove the line pressure switch.
^ To install, tighten to 13 Nm (10 lb-ft).





3. Install a 1/8 x 28-to-1/8 x 28 pipe thread adapter into the line pressure tap.





4. Connect a pressure gauge to the adapter.
5. Start engine and check line pressures. Refer to the following Line Pressure chart to determine if line pressure is within specifications.
6. If line pressure is not within specification, refer to line pressure diagnosis chart for line pressure concern causes.

Line Pressure Chart

Line Pressure Chart:

Line Pressure Diagnosis Chart

Line Pressure Diagnosis Chart: