Diagnosis - 4F20E
- Application
- Description & Operation
- Trouble Shooting
- Symptom Tests
- Harsh Forward & No Reverse Engagement
- Harsh Forward & Reverse Engagement
- Delayed/Soft Forward
- Delayed/Soft Forward & Reverse
- Some Or All Shifts Missing
- Some Or All Shifts Early Or Late
- Erratic Or Hunting Shifts
- Soft Or Slipping Shifts
- Harsh Shifts
- No 1ST Gear In Drive, Engages In Higher Gear
- No 1-2, 2-3 Or 3-4 Upshift In "D" Position
- No 4-3, 3-2 Or 2-1 Downshift In "D" Position
- No TCC Engagement
- TCC Always Engaged
- TCC Cycling Or Shuddering
- Poor Vehicle Performance
- Engine Will Not Crank
- Transaxle Overheating
- Diagnosis & Testing
- System Tests
- Notes
- How To Use System Tests
- Test A: Shift Solenoids
- Test B: Transmission Fluid Temperature (TFT) Sensor
- Test BB: Main Power Relay
- Test C: TCC Solenoid
- Test Cc: Reference Voltage
- Test D: Transmission Range (Tr) Sensor
- Test E: EPC Solenoid
- Test F: Output Shaft Speed (OSS) Sensor
- Test G: Coasting Clutch Solenoid (CCS)
- Test H: Throttle Position (TP) Switch
- Test ND: Engine Speed Signal
- Removal & Installation
- Wiring Diagrams