Question about 2002 GMC Denali
When im moving and i turn in any direction at slow speeds like 5-10mph i hear a noise that sounds kind of like the sound of too big of tires but it sounds like its coming out of the hub the noise dose not happen every time and it varies from really load to barely hear it, same thing with feeling it too ive been to the dealer and they where no help and im running out of options.
thx for your time
I have a 2002 Sierra Denali, and when it was only two years old, I began having the same issue that it sounds like you guys are describing. Luckily, I had opted for the extended warranty, because it turns out that the lube "specialists" at Wally-World had topped off my rear differential with standard rear-end oil. I turns out that the Denali's differential has a special "clutch pack", as they called it, that requires a secial, senthetic (aka: very expensive) lubricant. The **** WalMart added contaminated the diffy's oil, and caused the clutch pack to fail.... basically it started locking the rear axles, and not allowing one side to rotate at a different speed than the other, as is required in turning.
Well, it took the dealer nearly a month to acquire the neccesary parts for the repair, and as for the cost? Only a minimal deductible, and the dealer assured me that the $1800 extended warranty had paid for itself.... nearly twice!!!
WORDS OF ADVICE: If you own a Denali with AWS, Always instruct the lube guys not to touch your rear differntial! And have your certified GM mechanic check it at recommended intervals.
Posted on Nov 03, 2009
I had the same noise in mine Youhave to put a posi traction additive in the rear it's available at your GMC dealer its your Posi Clutches stickin when you make turns
Posted on Apr 03, 2013
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Posted on Jan 02, 2017
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