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Scott, GMC Technician
Category: GM
Satisfied Customers: 424
Experience:  16 years GMC technician, 25 years Gm Mater certified, 25 years ASE certified
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2003 GMC Yukon Denali: the front differential rebuilt..reverse

Customer Question

I have a 2003 GMC Yukon Denali and I just had the front differential rebuilt for a noise. What is happening now it when you turn sharply either in drive or in reverse the truck seems to have the front tires fighting against each other, which I never noticed before. Is this normal?
Submitted: 4 years ago.
Category: GM
Expert:  Scott replied 4 years ago.
It sounds like the front differential is not disengaging from 4wd. If you did not have this problem before the differential was rebuilt, they may have something not put together right in the rh axle housing exstension where the actuator is or a shorted wire to the actuator itself.
Scott, GMC Technician
Category: GM
Satisfied Customers: 424
Experience: 16 years GMC technician, 25 years Gm Mater certified, 25 years ASE certified
Scott and other GM Specialists are ready to help you
Expert:  Scott replied 4 years ago.
The front axle actuator should only be engaged in 4wd, either 4hi or 4low. It sounds to me from what you are describing that it is engaged all the time and shouldnt be.
Scott, GMC Technician
Category: GM
Satisfied Customers: 424
Experience: 16 years GMC technician, 25 years Gm Mater certified, 25 years ASE certified
Scott and other GM Specialists are ready to help you
Customer: replied 4 years ago.
It is an all wheel drive vehicle so it is engage all the time. Right?
Expert:  Scott replied 4 years ago.
Sorry I thought you had 4wd not awd. From what you are describing with All Wheel Drive, if this conditon was not there before the axle was rebuilt, there has to be something wrong with the spider gears in the differential.

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