2000 GMC Envoy Questions

All 2000 GMC Envoy Questions

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is there a diogram of where it runs to and from,my check engine light just came on 2 weeks ago and the code is po410
It is not working unless a jolt takes place due to a good bump or slam of the passenger door.Where is the resistor and or relay for my car?
Is there anyway to change the Xenon HID Lights without paying over $600 each for the Ignitor and Ballast?
I have a 2000 GMC Envoy, when i try to start it the engine tries to start but it won't catch. i checked the battery but the battery is good. what could be the problem?