2008 GMC Envoy Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 GMC Envoy
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2008 GMC Envoy ProblemsErratic Fuel Gauge Operation
The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.
On certain 2005 - 2007 vehicles, General Motors has provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000 miles from the original "in service" date of the vehicle. Please contact your local GM dealer for more information.
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The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate.
2008 GMC Envoy QuestionsWhy is my engine light on, when mechanics can't find anything wrong with it? (1 answer)
The engine light is always on. We were told that our gas cap needed to be replaced. We did that, and the light went off for a while, but came back on. Mechanics have hooked it up to the conputer, and still cannot figure out the problem.
where is the temperature/coolant sensor located on the 2008 GMC Envoy