Differential Unit Problems of GMC Yukon

GMC Yukon owners have reported 13 problems related to differential unit (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Yukon based on all problems reported for the Yukon.

car image   Differential Unit problem of the 2016 GMC Yukon 1
Failure Date: 04/25/2016

Excessive vibration/buffeting drone issues (at all speeds of the vehicle) have caused severe health issues and safety hazards from driving the vehicle. Within the first 8,000 miles of owning the car, the car has now been in service for 40 days as gm tries and remedy the problem, but there does not appear to be a fix. So far, diagnostic tests indicated that there was a faulty bearing in the rear differential that led to significant abnormal wear throughout the differential and the differential needed to be rebuilt. When rebuilding, they discovered that the disassembled differential had heavily scored bearings and metal shaving throughout every bearing. Ring gear and pinion had irregular wear causing a drone in the vehicle. Race surfaces wear ground and scarred bad. The rebuilt differential did not fix the issue and now after having four new tires and road balancing, the problems didn't diminish but were exacerbated. After rebuilding the differential again, gm has now determined that the rear axle may need to be replaced and engineers are looking into the problem further. The steering wheel shakes and the car has a terrible vibration that worsens every time gm attempts to service the vehicle. This seems to be a well-documented problem that gm has avoided fixing. We advise other consumers to be aware of the serious safety problems related to the poor manufacturing of the vehicle and inability of gm to remedy the problem.

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car image   Differential Unit problem of the 2001 GMC Yukon 2
Failure Date: 04/21/2016

The contact owns a 2001 GMC Yukon xl denali. The contact stated that while driving at approximately 15 mph, there was a grinding noise emerging from the front end differential of the vehicle. The vehicle was taken to the dealer and the diagnosis was that the front differential failed, but the dealer would not repair the vehicle and informed that the vehicle needed to be inspected by a transmission specialist. The failure reoccurred on three occasions. The approximate failure mileage was 200,000. The VIN was not available.

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car image   Differential Unit problem of the 2015 GMC Yukon 3
Failure Date: 10/29/2015

Vehicle exhibits a "buffetting" or pressure sensation that can be felt primarily in the ears between 40 and 50 mph. After any amount of time at these sustained speeds it begins to cause dizziness, ear pain, and headaches. This condition was confirmed by the dealer with 3 separate drivers including a tech, the sales manager, and the owner. Gm has a technical pi issued, as the problem is apparently relatively common in these vehicles. Suggested repairs include re-bonding the roof sheet metal to the frame, repair/replacement of the rear differential, replacement of the propshaft, repair/replacement of wheels and tires, removal and "relaxing" of the exhaust system, and more. None of which appears to solve the issue. A quick internet search turned up dozens of cases with this issue in just one website. Gm has manufactured a vehicle with a significant, known flaw that they cannot currently fix. This flaw should be considered a safety issue strictly based upon the physical symptoms triggered by the sensation within the vehicle.

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car image   Differential Unit problem of the 2002 GMC Yukon 4
Failure Date: 01/22/2009

Whining in engine-found to be bad bearings and metal in differential. Was told could have made car lock up at anytime (imagine that in heavy traffic). This is second car in family with exact same problem although was told it was "rare".

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car image   Differential Unit problem of the 2003 GMC Yukon 5
Failure Date: 12/17/2007

Front differential fails on awd versions of Yukon/denali models. Unusual front driveline noise is experienced especially during light acceleration or load. Noise is a whine type of load. This one failed @ 54,000 causing dealer to rebuild front differential with new bearings and seals. Old bearings were badly scored and one of them broken to many pieces. I asked for parts and was given what could be pulled out. Internet search indicates many owners with awd systems which were also available on Yukon as well as denali models have had similar failures. Cost to repair as warranty expired at 40,000 miles was approx. $1000.

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car image   Differential Unit problem of the 2006 GMC Yukon 6
Failure Date: 10/08/2007

2006 GMC Yukon xl - purchased in Jan. 2006, the vehicle was taken in for service 1 month after taking delivery for foul smell emitting from vehicle while moving. It was diagnosed as the rear differential producing the odor, they changed the fluid to the old synthetic type, and claimed it was the smell of the grape seed extract used in the organic new type fluid. This did not solve the problem, the next time the service center tried an oil which had a higher heat rating, this did not fix the smell problem. On the 4th visit to the service center and after opening a customer claims case with gm, they rebuilt the rear differential. This seemed to solve the problem for about the first 6-8 months, the smell returned and got significantly worse until I opened another case withgm customer claims. While working with them the differential went out on the vehicle leaving me to rent a car on my own until gm decided what they were going to do about it. I am currently in a bbb case with gm.

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car image   Differential Unit problem of the 2002 GMC Yukon 7
Failure Date: 03/28/2006

: the contact stated while attempting to turn at 15 mph, the rear driveline differential broke followed by a banging noise as though it was dragging. The vehicle was seen by a dealer for inspection. While the mechanic test drove the vehicle, the driveline differential unit completely separated. The vehicle is currently at the dealership awaiting repairs. Updated 05/04/06.

car image   Differential Unit problem of the 2002 GMC Yukon 8
Failure Date: 12/15/2002

Four wheel drive makes grinding noise during turns. Manufacturer advised me that this is normal.

car image   Differential Unit problem of the 1999 GMC Yukon 9
Failure Date: 03/21/2001

Had taken vehicle to dealer for brake service on front disc brakes due to wear on disc. Work after 15000 miles had to be performed again due to disk wearing out. Consumer believed that brakes were not heavy enough for vehicle. Disc warped causing vibrations and brake failure. The disc was turned a t 15k miles and was replaced at 28k. Transmission does not hold on hills. Front end was leaking due to front pinion seal failure . .

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car image   Differential Unit problem of the 1997 GMC Yukon 10
Failure Date: 10/12/2000

This vehicle has been a problem since we bought it. Right after we bought it we heard a roar in the rear end. The rear end was replace under the 3yr/36000mile warranty. Soon after that the alternator was replaced under warranty. Just recently we took a trip and towed our 18ft. Ski boat with us. When we returned my wife noticed a problem the next day. We had no reverse and that proved to be the transmission. We contaced the closest dealrer to mike morgan shreveport, la. They told us that they were so backed up with tranmission problems that it would be at least a week before they could pick up the truck to even look at it. Then they would tell me what they thought. Well, I paid $25,000 for a vehicle to sit with a bad transmission and they think I will let it sit while my wife and children walk!!! I don't think so! during the last of July, my brother and law and I replace the starter on this same truck to the tune of $250. 00 yesterday I found a water pump leak and was told that would cost me around $200. 00 to repair. Oh yes, the transmission cost me $1,400. 00 to repair. As you can see, I am having a ton of problems with this vehicle. Gm has thumbed their nose at me and more or less said "tough luck"! well, I don't think that is fair. The transmission is what really upset me. I paid extra to have towing package on this truck and we pulled a boat 1 time and this happens. I can't beleive that this truck can't get at least 100,000 miles on the original transmission. I also have a boss that owns a 1999 suburban that had the tranmission fail on him this last Friday. His truck has only 54,000 miles. Well, as you can see, I think gm has a problem!!! please let me know what I can do!.

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car image   Differential Unit problem of the 2000 GMC Yukon 11
Failure Date: 08/06/2000

Dealer repaired under warranty. Said wrong spacer put in at manufacture process. Optional 4. 10 rear.

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car image   Differential Unit problem of the 1997 GMC Yukon 12
Failure Date: 06/13/2000

Premature failure of the parts at low mileage. No safety defect listed.

car image   Differential Unit problem of the 1996 GMC Yukon 13
Failure Date: 01/01/1997

Braking system malfunctioned, causing extended stopping distance, which almost resulted in a crash. Dealer could not determine the cause of the problem. Common problem. Also oil leak/ rear differential failure/misaligned rear right door, and rear axle shaft seal leaking.

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