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Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1667
Experience:  GM Grand Master Technician 2007. 14 year experience.
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Can't get it to start. New battery. All electrics are good.

Customer Question

Can't get it to start. New battery. All electrics are good. Suspect anti theft logic is not letting car start. Seat heaters do on work. Checked ign.3 fuse and it was good.
JA: Most vehicles have two fuse panels. Have you located both?
Customer: No, just the fuse box beside the drivers door
JA: What is the model/year of your GMC?
Customer: 2005 Yukon denali
JA: Are you fixing your Yukon Denali yourself? What have you tried so far?
Customer: I replaced the weak battery and checked the fuse.
JA: Anything else you want the mechanic to know before I connect you?
Customer: That's all. Haven't had this problem before. Good car
Submitted: 27 days ago.
Category: GMC
Expert:  Gm Tech (Cam) replied 27 days ago.

Hi there, I am Cam. With your Yukon, when you turn the key on, does the check engine light on?

Is the security light flashing?

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