Line Pressure Check

Before performing a Line Pressure Check, verify that the Pressure Control Solenoid Valve (PC Sol. Valve) is receiving the correct electrical signal from the PCM:





1. Install a scan tool.
2. Start the engine and set the parking brake.
3. Check for a stored Diagnostic Trouble Code (DTC).
4. Repair the vehicle, if necessary.

To perform a Line Pressure Check:

1. Check the Refer to Transmission Fluid Checking Procedure.

CAUTION: Keep the brakes applied at all times in order to prevent unexpected vehicle motion.

NOTICE: Total test running time should not be longer than two minutes, or else transmission damage could occur.

2. Check the manual linkage for proper adjustment.
3. Turn the engine Off. Remove the oil pressure test hole plug and install J 21867 Line Pressure Gauge.
4. Put the gear' selector in Park range and set the parking brake.
5. Start the engine and allow the engine to warm up at idle.
6. Access the PC Sol. Valve Control test on the scan to 1.
7. Increase the PC ACT. Current to 0.0 and 0.1 amps. Allow the pressure to stabilize for five seconds after each pressure change. Read the corresponding line pressure on the pressure gauge.





8. Compare the data to the table below.
9. If pressure readings differ greatly from the table, refer to the appropriate Symptom Diagnosis Tables.
10. Remove J 21867 pressure gauge. Install the oil pressure test hole plug.