For 1990-2009 cars only
Engine Squealing Type Noise on Start-up Vibration (Inspect and Replace Crankshaft Balancer if Necessary)
| Subject: | Engine Squealing Type Noise on Start-up or Vibration (Inspect and Replace Crankshaft Balancer if Necessary) |
| Models: | 2007 Chevrolet Monte Carlo |
| 2007-2008 Chevrolet Impala, Malibu, Uplander |
| 2007-2008 Pontiac G6, Montana SV6 |
| 2007 Saturn Relay |
| 2007-2008 Saturn AURA |
| with 3.5L or 3.9L Engine (VINs N, K, R, W, 1, 3 -- RPOs LZ4, LZE, LZ8, LGD, LZ9, LZG) |
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:
Labor Operation | Description | Labor Time |
|---|---|---|
J0720 | Crankshaft Balancer Replacement | Use Published Labor Operation Time |
