Question about 2002 GMC Envoy XL
Just purchased a used 2004 Envoy SLT with 51,000 km. The problem is a really loud engine noise for the first 2-3 minutes of driving. It sounds like a jet engine, or a huge air intake of some sort. This initial noise goes away after a couple of minutes and then it runs quiet. Any ideas? We have a 3 month GM warranty left on the vehicle. I have the same problem with my '02. It happens whenever we accelerate and goes away as we back off the throttle when we reach a cruising speed (or have the cruise control set). It has been very infrequent until yesterday when it happened again and was accompanied by the service engine light coming on as well.
I would guess it is the electronic fan clutch. It will cause the fan to run too fast (very loud) and the light will come on sometimes.
Posted on Dec 28, 2008
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Posted on Jan 02, 2017
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