Torque Converter Shudder - keywords chuggle hesitation PCM PWM reflash reprogram surge vibrate
| Subject: | Torque Converter Shudder |
| Models: | 2004-2005 Saturn Vue |
| equipped with a 5AT transmission |
This PI was superseded to include more keywords in eSI per request. Please discard PIP3713A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
The vehicle that is equipped with a 5AT transmission shudders or vibrates while driving between 35 and 40 MPH.
To confirm the customer's complaint, test drive the vehicle on a smooth road, preferably one with a slight uphill incline. Set the cruise control speed between 35 and 40 MPH, and monitor the engine RPM using the vehicle's tachometer, or use the Tech 2® to take a snapshot of engine RPM.
Recommendation/Instructions:
Replace the torque converter and reflash the PCM. The new calibration for the 5AT transmission will be any superseded calibration available at this time.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
