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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 29534
Experience:  GM Grand Master Technician 2007. 14 years experience.
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GMC Envoy: A/C blower motor keeps running when ignition turned

Customer Question

A/C blower motor keeps running when ignition turned off in my GMC Envoy 2003
Submitted: 8 years ago.
Category: GM
Expert:  GM Tech (Cam) replied 8 years ago.
Welcome. This issue is caused by a bad blower motor controller under the dash on the right side. This is very common and also very easy to replace the faulty part. IT is above the plastic shield and is held in place with 2 screws. Replace this controller and it should fix your issue.