Solved Rear Heater Keeps Running Even Though The Vehicle Is Off Gmc

Chosen Solution

The rear heater resistor is supposedly bad, how do I change out this part.

Hi Scott, Below is a quote, among others, from this link http://www.amazon.com/ACDelco-15-72813-O… which describes the fix for your GMC Envoy XL, as well as other GMCs with a similar problem. You may be able to find the part cheaper somewhere else. This is just to show what may be the problem with your vehicle. This is the fix for those of you whose rear AC fans run on after shutting the car off. I installed it in a 2003 GMC Envoy, but it is a replacement for many GM models. It is mounted on the external side of the rear AC unit and is a pain to get at, but worked like a charm once installed. Hopefully it is of some help.