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2007 gmc yukon xl denali: brake lights..turn signals..hood..shifting…

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I have a 2007 gmc...
I have a 2007 gmc yukon xl denali at my gmc service center as we speak. it is having a ton of electrial problems, i.e. brake lights staying on all the time, turn signals not working, hood open indicator is on despite the hood being closed, sun roof wont open, you name it. It even had a difficult time shifting into the next gear. they thought it was the bcm but nope. any ideas?
Submitted: 8 years ago.Category: GM
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Answered in 2 hours by:
6/22/2010
GM Mechanic: FIXITMAN, Master Technician replied 8 years ago
FIXITMAN
FIXITMAN, Master Technician
Category: GM
Satisfied Customers: 17,611
Experience: ASE Master Certified
Verified
Hello JACUSTOMER, this is typically a problem within the eletrical information wires. GM has had a lot of problems with this. In some cases all of the wiring between the modules will need to be replaced.
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