| 240 - ELECTRICAL ROUTINE |
| Powertrain Control System |
|
- Electrical inputs/outputs, vehicle wiring harnesses, PCM, torque converter clutch (TCC) solenoid, TFT sensor, OSS.
|
| 340 - HYDRAULIC/MECHANICAL ROUTINE |
| Shift Linkage |
- Inspect and repair as required. Verify transmission shift cable adjustment; refer to CABLE ADJUSTMENT
. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify that the digital TR sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
|
- Damaged or incorrectly adjusted
|
| Incorrect Pressures |
|
- Low line pressure, low EPC pressure
|
- Check pressure at line and EPC taps; refer to Line Pressure Chart for specifications. If pressure is low, check EPC and main regulator valve. If within specifications, check the main controls.
|
| Main Controls |
|
- Solenoid pressure regulator valve, manual valve, bypass clutch control valve and plunger, converter pressure limit valve, drain back valve stuck, damaged or assembled incorrectly
|
- Inspect for damage. Repair as required.
|
- Bolts not tightened to specifications
|
- Tighten bolts to specifications.
|
- Solenoid screen blocked or damaged
|
- Clean or install a new screen.
|
|
|
- Activate solenoid using scan tool. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Repair as required.
|
|
|
- Inspect for damage and install a new gasket.
|
| Pump Assembly |
|
- Bolts not tightened to specifications
|
- Tighten bolts to specifications.
|
- Porosity/cross leaks, balls leaking
|
- Inspect for porosity/leaks, ball missing. Install a new pump as required.
|
|
|
- Inspect for damage and install a new gasket.
|
| Input Shaft |
- Inspect for damage. Repair as necessary.
|
|
|
| Torque Converter Assembly |
- Inspect torque converter. Repair or install a new or remanufactured torque converter as required.
|
- Leakage, friction material damaged, internal seals damaged
|