Accessory Drive Belt/Serpentine Belt Noise, Chirp, Squeal or Squeak (Check Pulley Alignment and Replace Belt, If Necessary)
| Subject: | Accessory Drive Belt / Serpentine Belt Noise, Chirp, Squeal or Squeak (Check Pulley Alignment and Replace Belt, If Necessary) |
| Models: | 2008-2009 Cadillac Escalade, Escalade ESV, Escalade EXT |
| 2008-2009 Chevrolet Avalanche, Silverado, Silverado HD, Suburban, Tahoe, TrailBlazer, TrailBlazer SS |
| 2009 Chevrolet Colorado, Express |
| 2008-2009 GMC Envoy, Envoy Denali, Sierra, Sierra HD, Sierra Denali, Yukon, Yukon XL, Yukon Denali XL |
| 2009 GMC Canyon, Savana |
| 2008-2009 HUMMER H2, H3 |
| 2008-2009 Saab 9-7X V8 |
| with Vortec® GEN IV V8 4.8L, 5.3L, 6.0L, 6.2L or Engine (VINs 3, 4 , M, L, 0, C, J, H, U, Y, K, 8, 2 -- RPOs LY2, LC9, LMF, LH6, LH8, LMG, LY5, LS2, L76, LY6, L92, L9H) |
| with or without Active Fuel Management System |
Condition
Some customers may comment on an accessory drive belt / serpentine belt chirp, squeal or squeak noise from the engine compartment at idle or while driving.
Cause
This condition may be caused by a misaligned pulley and/or the accessory drive belt creating the noise.
Correction
Notice: Do not use belt dressing or silicone on the drive belt. Belt dressing may cause the composition of the drive belt to break down. Failure to follow this recommendation will damage the drive belt.
Tip
Several aftermarket companies offer laser alignment tools for accessory drive systems that can be very helpful in eliminating drive belt noise as a result of misaligned pulleys. Refer to Service Bulletin 08-06-01-008.
Additional information on EN-49228 Laser Belt Alignment Tool can also be found in GM TECH LINK Publication, June 2008 Volume 10, No 6.
Check and/or adjust pulley alignment, then replace the accessory drive belt, if necessary. Refer to Drive Belt Replacement-Accessory in SI.
Parts Information
Part Number | Description |
|---|---|
12626222 | Belt, Fan & Water Pump & Generator & Power Steering Pump |
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J0667 | Belt, Primary Accessory Drive - Replace | Use Published Labor Operation Time |
Add | Diagnosis Time to Check and Adjust Pulley Alignment | 0.0-0.3 hr |
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use:
Labor Operation | Description | Failed Object | Fault/Reason | Location Code | Warranty Type | Repair/Action Code | Labor Time |
|---|---|---|---|---|---|---|---|
3211505 | Belt, Primary Accessory Drive - Replace | 32115 | 40 | 0 | 01 | 01 | Use Published Labor Operation Time |
Add | Diagnosis Time to Check and Adjust Pulley Alignment | -- | -- | -- | -- | -- | 0.0-0.3 hr 99 time |
