Engine - Squealing Type Noise on Start-up or Vibration
TECHNICALBulletin No.: 08-06-01-006C
Date: November 01, 2010
Subject: Engine Squealing Type Noise on Start-up or Vibration (Inspect and Replace Crankshaft Balancer, if Necessary)
Models:
2007 Buick Rendezvous, Terraza
2007 Chevrolet Monte Carlo
2007-2008 Chevrolet Impala, Malibu, Uplander
2007-2008 Pontiac G6, Montana SV6
2007 Saturn Relay
2007-2008 Saturn AURA, VUE
Equipped with 3.5L or 3.9L Engine (VINs N, K, R, W, 1, 3, 8 - RPOs LZ4, LZE, LZ8, LGD, LZ9, LZG, LX9)
Supercede:
This bulletin is being revised to add the 2007 Buick Rendezvous. Please discard Corporate Bulletin Number 08-06-01-006B (Section 06 - Engine/Propulsion System).
Condition
Some customers may comment on a squealing type noise coming from the engine compartment on start-up. Others may comment about an engine vibration.
Cause
The outer ring on the crankshaft balancer may be slipping on the center hub.
Correction
Inspect the crankshaft balancer to see if the outer ring is slipping on the center hub. If this condition is found, replace the crankshaft balancer using the applicable one listed in the parts catalog. Refer to Crankshaft Balancer Replacement in SI.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer