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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 29427
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2007 yukon denali: Voltage..alternator..AC, and check engine light

Resolved Question:

My 2007 yukon denali will not start. Voltage on battery and alternator are good. All instrument panel lights, acsssesories, AC, and check engine light come on when i turn key to ON, but when i turn key all the way to start engine, everything turns off and engine does not make a sound
Submitted: 5 years ago.
Category: GM
Expert:  GM Tech (Cam) replied 5 years ago.

GM Tech (Cam) :

Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.

GM Tech (Cam) :

Do you have a test light? If so then it is best to test at the small stud at the starter when the key is in the start position. If there is no power there, then we need to start checking other places such as the starter relay, or the neutral safety switch. If there is power at that stud then you likely need a new starter if the battery and cables to the starter from the battery are good.

Customer:

there is power at the small stud on the starter and battery cables are good

GM Tech (Cam) :

Then you have a faulty starter.

Customer:

Thank you

GM Tech (Cam) and 3 other GM Specialists are ready to help you

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