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Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 29428
Experience:  GM Grand Master Technician 2007. 14 year experience.
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GMC Yukon XL Denali: my 2007 gmc deali liftgate stopped working.

Customer Question

my 2007 gmc deali liftgate stopped working. motor appears to run and stops and gate does not open. make a noise at the switch for about 10-15 seconds and door opens with a manual assist. Is the latch the problem?
Submitted: 1 year ago.
Category: GMC
Expert:  Gm Tech (Cam) replied 1 year ago.
Hello, I'm Cam.
Can I get your first name please?
Does the door close electronically on its own or no?
If it will not move at all on its own but works proper when manually operated, it's likely the lift gate assembly. There is a plastic gear inside that fails and causes exactly what you describe. Unfortunately the gear is not available on its own but rather it includes the motor and gear assembly. It's not bad to change and is about 500$ for the part.