Harsh Shifts
WARNING: This page is about a different car, the 2004 GMC Yukon XL, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Harsh Shifts
| Checks |
Cause |
| Line Pressure |
Too high |
| Pressure Control Solenoid Valve (320) |
- Failed Off
- Loose connector
|
| PCM |
Loose connector |
| Accumulator Piston |
|
| Accumulator Spring |
Incorrect |
| Checkballs |
Missing |
| Calibration PROM |
Incorrect |
| Check the PCM for current DTCs. |