L61 Engine Front End Wobble or Vibration on Acceleration (Refer to SI Procedure for Powertrain Mount Balance - Lower Mount)
| Subject: | L61 Engine Front End Wobble or Vibration On Acceleration (Refer to SI Procedure for Powertrain Mount Balance - Lower Mount) |
| Models: | 2004-2007 Chevrolet Malibu (Sedan) |
| with Ecotec™ 2.2L I-4 Engine (VIN F -- RPO L61) |
Condition
Some customers may comment on a wobble (side to side motion) on moderate acceleration from a stop (up to about 48 km/h (30 mph).
Cause
This condition may be caused by the powertrain mount being incorrectly loaded.
Correction
Important: Do not replace the drive axles for this condition.
The powertrain mounts are loaded and must be neutralized.
Important: It is not necessary to start the engine and put vehicle into drive and reverse before re-torquing the through bolts. The powertrain will neutralize when both through bolts are loosened.
Refer to Powertrain Mount Balance - Lower Mount in SI and follow the balance procedure for the lower powertrain mounts.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
K9511* | Balance Procedure - Powertrain Mounts, Lower | 0.3 hr |
*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide. | ||
