Having problems with your 2002 GMC Envoy XL ?
Where is the location of the coolant temperature sensor on my 2004 gmc envoy,and what is the best way to get at it?
If you have a code for erratic thermostatic or coolant temp ,change the thermostat it is a known problem ...located under the alternater very hard to change make sure you get an acdelco or dealer part ;) assuming it is the in line engine
Repair Help & Product Troubleshooting for 2002 GMC Envoy XL
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