Shift Concerns: 1 - 2 Shift (Automatic)
| Possible Component | Reference/Action |
|---|---|
| 220 - ELECTRICAL ROUTINE | |
| Powertrain Control System | |
| Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, OSS | Carry out Self-Test. See INTRODUCTION - GASOLINE and/or INTRODUCTION -- 6.0L DIESEL articles for diagnosis and testing of the Powertrain Control System. GO to PINPOINT TEST A or GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and repeat Self-Test. |
| Poor engine driveability concerns | Refer to Routine 253 under OTHER CONCERNS: POOR VEHICLE PERFORMANCE . |
| 320 - HYDRAULIC/MECHANICAL ROUTINE | |
| Shift Linkage, Digital TR Sensor | |
| Damaged or incorrectly adjusted | Inspect and repair as required. Verify transmission shift cable adjustment. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS for E-series, or AUTOMATIC TRANSMISSION EXTERNAL CONTROLS -- F150 PICKUP . 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. Refer to TRANSMISSION RANGE (TR) SENSOR ADJUSTMENT . |
| Incorrect Pressures | |
| Intermediate clutch pressure, line pressure | Check pressure at line and intermediate clutch taps. Refer to the LINE PRESSURE CHART and the CLUTCH PRESSURE TEST CHARTS for specifications. Refer to SPECIAL TESTING PROCEDURES . If not OK, check the main controls. |
| Main Controls | |
| 1 - 2 shift valve, stuck or damaged | Inspect for damage. Repair as required. |
| Bolts not tightened to specifications | Tighten bolts to specification. |
| Shift solenoid SSA malfunction | Activate solenoid using diagnostic tool. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Repair as required. |
| Gasket damaged | Inspect for damage and install a new gasket. |
| No. 8 ball not seating | Inspect for damage. Repair as required. |
| Case | |
| 1 - 2 accumulator stuck or damaged | Inspect for damage. Repair as required. |
| Pump | |
| Porosity/cross leaks, balls missing, damaged or leaking | Inspect for porosity/leaks, balls missing. Install a new pump as required. |
| Gasket damaged | Inspect for damage and install a new gasket. |
| Intermediate Clutch Assembly | |
| Seals damaged | Inspect for damage. Repair as required. |
| Piston damaged | Inspect for damage. Repair as required. |
| Friction elements damaged or worn | Inspect for damage. Repair as required. |
| Intermediate One-Way Clutch Assembly | |
| Not holding or damaged | Inspect for damage. Repair as required. |
| Planetary One-Way Clutch Assembly | |
| Not overrunning or damaged | Inspect for damage. Repair as required. |
| 1-2 Accumulator | |
| Damaged accumulator piston | Inspect for damage. Repair as required. |
| Springs damaged or broken | Inspect for damage. Repair as required. |
| Case bore scored | Inspect for damage. Repair as required. |
SHIFT CONCERNS: 1 - 2 SHIFT (AUTOMATIC)