Harsh Shifts
WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. 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. |