Having problems with your 2002 GMC Envoy ?

When the vehicle is cold, the 4WD indicator light will come on at start up and stay on until the vehicle warms up. This results in not being able to put it into 4WD if parked in 2WD or not being able to put it into 2WD if parked in 4WD. Once warmed up the light goes out and it works just fine.

Posted / edited by AnonymousUser on : 16-04-2018

Answers :

There are bulletins on this the diff actuator could be bad or the switch on the transfer case is sticking
Repair Help & Product Troubleshooting for 2002 GMC Envoy

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