Shift Concern: Soft/Slipping 3-4
| Possible Component | Reference/Action |
|---|---|
| 228 - ELECTRICAL ROUTINE | |
| Powertrain Control System | |
| PCM, SSA, SSC, vehicle wiring harnesses and TFT sensor. | Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE for diagnosis and testing of the PCM. GO to PINPOINT TEST B . Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test. |
| 328 - HYDRAULIC/MECHANICAL ROUTINE | |
| Incorrect Pressures | |
| High/low pressures. | Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES in this article. |
| Main Control | |
| Bolts not tightened to specification. | Tighten to specifications. |
| Separator plate damaged. | Inspect for damage. If damaged, repair as necessary. |
| Contamination. | Disassemble and clean. |
| Valves/springs damaged, misassembled, missing, stuck, or bore damaged. | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. |
| Forward Clutch Assembly | |
| Seals, piston damaged. | Inspect for damage. Repair as necessary. |
| Check balance dam. | Inspect for damage. Repair as necessary. |
| Friction elements damaged or worn. | Inspect for damage. Repair as necessary. |
| Servo | |
| Seals (piston and cover) damaged. | Inspect for damage. Repair as necessary. |
| Band | |
| Band damaged. | Inspect for damage. Repair as necessary. |
| Servo worn or damaged. | Inspect for damage. Repair as necessary. |
| Not adjusted correctly. | Adjust correctly. |
| Anchor bolt damaged or worn. | Inspect for damage. Repair as necessary. |
SHIFT CONCERN: SOFT/SLIPPING 3-4