Line Pressure Test
| Item | Part Number | Description |
|---|---|---|
| 1 | 7A010 | Line pressure tap plug |
| 2 | 7A010 | Transmission fluid drain plug |
NOTE:
Carry out the Line Pressure Test prior to carrying out the Stall Speed Test. If the 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 (WOT) in any transaxle range for more than 5 seconds.
NOTE:
Do not mistake the transmission fluid drain plug for the line pressure tap plug or the transmission fluid will have to be refilled.
This test verifies the line pressure is within specification.
- Connect the Transmission Fluid Pressure Gauge to the line pressure tap.
- Start the engine and check the line pressures. Refer to the LINE PRESSURE CHART to determine if the line pressure is within specification.LINE PRESSURE CHART
Gear Line Pressure at Idle KPa (psi) Line Pressure at WOT Stall KPa (psi) Minimum Maximum Minimum Maximum P 883 KPa (128 psi) 1020 KPa (148 psi) - - R 1034 KPa (150 psi) 1172 KPa (170 psi) 2172 KPa (315 psi) 2309 KPa (335 psi) N 883 KPa (128 psi) 1020 KPa (148 psi) - - D, L 1034 KPa (150 psi) 1172 KPa (170 psi) 2172 KPa (315 psi) 2309 KPa (335 psi) - If the line pressure is not within specification, see the LINE PRESSURE DIAGNOSIS CHART for line pressure concern causes.
- When the pressure tests are completed, install the line pressure tap plug.
- Tighten to 9 Nm (80 lb-in).
LINE PRESSURE DIAGNOSIS CHARTTest Results Possible Source HIGH at IDLE - ALL RANGES Wiring Harnesses Line Pressure Control (LPC) Solenoid Main Regulator Valve LOW at IDLE - ALL RANGES Low Fluid Level Fluid Inlet Filter/Seal Main Control Body Cross Leaks Gaskets Pump Separator Plate LOW in Park ONLY Valve Body LOW in Reverse ONLY Separator Plate Reverse Clutch Valve Body Forward Clutch LOW in Neutral ONLY Valve Body LOW in O/D ONLY Forward Clutch Valve Body LOW in Drive ONLY Forward Clutch LOW in Manual 1st ONLY Forward Clutch Valve Body