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Gary
Gary, ASE Certified Technician
Category: GMC
Satisfied Customers: 15726
Experience:  GCM master tech over 25 years
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I got a 04 Yukon xl denali its making grinding noise in the

Customer Question

Hi I got a 04 Yukon xl denali its making grinding noise in the front when I jacked it up on the back wheels would turn the this sound like transfer case
Submitted: 1 year ago.
Category: GMC
Expert:  Gary replied 1 year ago.

I am sorry your having this problem

in 2WD it will make this noise and the noise sounds like it is from the transfer case listening under the truck when its making this noise ?

or is this AWD all the time ?

Customer: replied 1 year ago.
Its awd all the time
Expert:  Gary replied 1 year ago.

if the truck is run up in the air is the noise from the transfer case or the front axle ?

Customer: replied 1 year ago.
The drive shaft doesn't turn to the front diff
Expert:  Gary replied 1 year ago.

ok and the noise is from the transfer case itself i am assuming ?

if that is correct there is a failure inside this transfer case more than likely

can you drain the transfer case fluid and see if the old fluid has metal in it ?

Customer: replied 1 year ago.
I didn't hear no noise but if it's full time awd the drive shaft should spin correct
Expert:  Gary replied 1 year ago.

the front shaft should sin when the rear wheel speed is greater than the front wheel speed yes

if its not spinning the odds are the internal of the transfer case has failed

Customer: replied 1 year ago.
it seems to have a lot of play when I turn the drive shaft while its in park
Expert:  Gary replied 1 year ago.

there more than likely is a failure inside the transfer case causing this issue

drain the fluid and look for metal in the fluid

Customer: replied 1 year ago.
OK I'm at work I will check it when I get home I will definitely get back to thanks
Expert:  Gary replied 1 year ago.

sounds good

you can always get me back through this post for FREE with any follow up with this question any time even after you rate us here at Justanswer !

Customer: replied 1 year ago.
OK and another thing I unhooked the axels and drive shaft and spun the axle and pinion and I didn't hear no odd noises it seemed like bearings are good so that's why I think its the transfer case
Expert:  Gary replied 1 year ago.

i agree i think it is the case also

Customer: replied 1 year ago.
Well I will definitely get back with you
Expert:  Gary replied 1 year ago.

sounds good

Expert:  Gary replied 1 year ago.

how are you making out ?

Customer: replied 1 year ago.
I had something come up haven't been able to check it out yet I will get back with you
Expert:  Gary replied 1 year ago.

sounds good