Whistle Noise on Light Acceleration (Replace Throttle Body)
| Subject: | Whistle Noise on Light Acceleration (Replace Throttle Body) |
| Models: | 2002-2005 Buick Rendezvous |
| 2002-2005 Chevrolet Impala, Monte Carlo, Venture |
| 2002-2004 Oldsmobile Alero, Silhouette |
| 2002-2005 Pontiac Aztek, Grand Am, Montana |
| with 3.4L V6 Engine (VIN E -- RPO LA1) |
Condition
Some owners may comment on a whistle type noise on light acceleration.
Cause
Casting porosity in the throttle body may be creating the whistle noise.
Correction
Replace the throttle body and, if necessary, throttle body gasket. Refer to the Engine Controls sub-section of Engines in the appropriate Service Manual. The throttle body gasket should be inspected and re-used if not damaged.
Parts Information
Part Number | Description | Qty |
|---|---|---|
12595271 | Throttle Body, Impala, Monte Carlo, Alero, Grand Am | 1 |
12595275 | Throttle Body, Rendezvous, Venture, Silhouette, Aztec, Montana | 1 |
24507945 | Gasket, Throttle Body | 1 as req'd |
Parts are expected to be available from GMSPO on January 10, 2005.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J5490 | Body Unit, Throttle - Replace | Use Published Labor Time |
