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.
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need. Goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Loose or damaged Wheel-Bearing causing other parts to rub together, like the brake components or your wheels are too big or shocks weak, or exhaust hanging and are rubbing against something. Perhaps oil is leaking from your rear axle housing dut to bad seals (check inner of wheels) and around axle housing - remove plug and check that your finger can reach in and touch it. Could be a sign of rear end failure or simply the backing plates on the brakes behind the rotors and the drums (steel disk) sometimes rust on the drums can grind against the backing plates if they are weak or warped (clean this area).
is your clutch pedal spongy if it is a hydraulic clutch there will be a small resivoir on the fire wall next to the brake master cylinder,if so check the fluid level,the noise your describing sounds like drive shaft u-joints,or cv axle drive shafts in front if its 4 wheel drive,block the wheels and put the truck in neutral,to release any tension on the drive shaft,go underneath,grab the driveshaft a foot behind the transmission,and push up an pull down on it while observing the u-joint in front of it if there is any looseness or play it is damaged,any movement up and down or left and right requires replacement,do the same to the other end at the rear axle,the rear axle u-joint is the most common failure,but check them both,
What this sounds like you have a bad wheel bearing.The best thing to do is lift it up put some jack stands under each side of the axle and manualy lift the wheels see if there is any play on it .Move the wheel up and down and side to side agressively .you should have no play on it.keep me posted and I can guide you on changing the bearings.
418238 If you have that much play back there, first check rear universal . If play is present in pinion with shaft removed, you will not be happy with what you find inside the cover.1/2 turn of lash in any gearset is far beyond the scope of any adjustment. Rebuilding is an exact science and must be done with special tools and lots of experience. With any luck the u joint is bad...
Remove wheel and check brakes. Sounds like a broke spring in the drum brakes. If you find the brakes look to be ok, inspect the axle barrings. If you can move the axle up and down or side to side any, you have some bad barrings. But I think more then likely it will be in the brakes.
The Denali's are really susceptible to front dif. wear and failure. Because it is AWD, the front dif is always working unlike a 4WD. GM, in order to lighten up the front end built the front dif in aluminum. If it was the same as the rear, it would be bullet proof, but much heavier. After about 80,000 miles it is common to have bearings failing. Remove the drain plug which happens to be magnetic. You may see more than just the normal fine filings. You will likely see larger chunks of metal some of which is not even magnetic but will drain out with the oil. You are likely looking at a $1500 rebuild. It will get much louder and run for a long time before it really goes south.