Condition
| Action
|
DEFINITION: Harsh forced downshift felt when accelerating
|
Input speed sensor (76)
|
• | Perform electrical function test on the input speed sensor (76). |
• | Replace the input speed sensor (76) if fails electrical function test. |
|
Battery voltage
|
• | Inspect battery for correct voltage. |
• | Repair charging system or replace battery. |
|
Engine or transmission mounts
|
• | Inspect the engine mounts and the transmission mounts for wear or loose mounting fasteners. |
• | Replace any faulty engine or transmission mounts or loose fasteners. |
|
Suspension system
|
• | Inspect suspension components. |
• | Replace faulty suspension components. |
|
Transmission oil temperature sensor (32)
|
• | Perform function test on the transmission oil temperature sensor (32). |
• | Replace the automatic transmission wiring harness assembly (78). |
|
Line pressure control solenoid valve assembly (SLT) (312)
|
• | Perform electrical function checks on the line pressure control solenoid valve assembly circuit. |
• | Perform electrical function check on the line pressure control solenoid valve assembly (312). |
• | Replace valve body assembly (39) if line pressure control solenoid valve assembly (312) is faulty. |
|
Transmission control module (TCM)
|
• | Perform function test on the TCM. |
• | Replace TCM if fails function test. |
|
Valve body (39)
| Replace valve body (39).
|
Internal transmission parts
|
• | Disassemble the transmission and inspect for the following: |
- | Missing retaining rings |
- | Worn or broken thrust needle bearings and thrust washers |
- | Differential assembly backlash |
- | Worn drive and driven gears |
- | Worn planetary gear assemblies |
• | Replace the transmission if any faulty parts. |
|