Question about 2003 GMC Envoy
Connect to a diagnostic computer and see what codes it gives you! it might be related to the "throttle control" or TPS which governs the mixture of gas/air etc....it talks to the car computer which controls all these things in the 2003 Envoy. could be the car computer as well....
Posted on Sep 28, 2008
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Posted on Jan 02, 2017
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