Instruments - Noise From Instrument Cluster
Bulletin No.: 04-08-49-015Date: May 04, 2004
TECHNICAL
Subject:
Noise Coming From Instrument Panel Cluster (Replace Instrument Panel Cluster)
Models:
2004 Buick Rainier
2002-2004 Cadillac Escalade, Escalade EXT
2003-2004 Cadillac Escalade ESV
2002-2004 Chevrolet Avalanche, Impala, Monte Carlo, Silverado, Suburban, Tahoe, TrailBlazer, TrailBlazer EXT
2003-2004 Chevrolet SSR
2002-2004 GMC Envoy, Envoy XL, Sierra, Yukon, Yukon XL
2004 GMC Envoy XUV
2002-2004 Oldsmobile Bravada
Condition
Some customers may comment on a noise coming from the instrument panel cluster (IPC) while driving or on initial start-up during gauge reset. The noise changes in relationship to the tachometer movement.
Cause
The cause of this noise may be the tachometer stepper motor.
Correction
Replace the instrument cluster with an exchange unit through normal procedure. Upon initial request of the exchange part, be sure to mention the noise issue and request an exchange unit that has had the tachometer stepper motor replaced as a part of the previous remanufacturing process at the exchange center. Delphi has issued bulletin # 04-IDPD-01-IS-A effective February 23, 2004 to all exchange centers giving direction to replace tachometer stepper motors on those clusters which would not have had that replacement under normal process.
Warranty Information
For vehicles repaired under warranty, use the table shown.
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