Isolating Vibration
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Some engine/transaxle combinations cannot be balanced in this manner due to limited clearances between the torque converter bolts and the engine. Ensure that the bolts do not bottom out in the lug nuts or the torque converter cover could be dented and cause internal damage.
To isolate and correct a flywheel or torque converter vibration, separate the torque converter from the flywheel to determine if vibration is in the engine or transmission.
- With the engine at idle speed and the transmission in PARK or NEUTRAL, observe the vibration.
- Turn the engine OFF.
- Raise and suitably support the vehicle.
- Remove the transmission converter cover bolts and the cover.
Refer to TORQUE CONVERTER COVER REPLACEMENT .
- Verify the bolt torques attaching the converter to the flywheel are to specification.
- Remove the bolts attaching the converter to the flywheel.
- Slide the torque converter away from the flywheel.
- Rotate the flywheel (1) to inspect for defects or damage.
Refer to ENGINE FLYWHEEL CLEANING AND INSPECTION .
- Rotate the torque converter to inspect lugs and pilot (2) for damage. Verify the presence of balance weight on the outside diameter of the torque converter.
- Lower the vehicle.
- With the engine at idle speed and the transmission in PARK or NEUTRAL, observe the vibration.
Refer to VIBRATION ANALYSIS - ENGINE .
- Turn the engine OFF.