For 1990-2009 cars only
05 Chevrolet and GMC Extended Wheel Mid-Sized Utilities Screeching / Whistle Sound at 4200 to 5000 RPM - kw 5.3 LH6 exhaust noise rear resonator
| Subject: | 05 Chevrolet and GMC Extended Wheel Mid - Sized Utilities Screeching/Whistle Sound at 4200 to 5000 RPM |
| Models: | . |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.
Condition/Concern:
Screeching/whistle sound at 4200 to 5000 RPM on vehicles equipped with the 5.3L V8 LH6 engine.
Recommendation/Instructions:
Replace the exhaust resonator with current SPO stock.
.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
Models:
(05 Chevrolet Trailblazer XL) and (05 GMC Envoy XL and Envoy XUV)
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