7.5

pretty bad
Typical Repair Cost:
$2,020
Average Mileage:
71,750 miles
Total Complaints:
25 complaints

Most common solutions:

  1. not sure (20 reports)
  2. complete engine overhaul (2 reports)
  3. some sort of a suggested gm "fix" deflector or something (2 reports)
  4. use regular oil not synthetic it won't burn (1 reports)
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This problem may be covered under warranty. Ask your GMC dealer.

« Read the previous 20 complaints

problem #5

Aug 262010

Yukon XL V8

  • Automatic transmission
  • 63,278 miles

In late August my engine oil low light came on. First thought was that there was something really wrong, which made me cancel the family trip I was taking over to central Oregon to get the issue fixed. Took it to the local Chevy guy (don't have a GMC dealer where I am) and he indicated that he has about 6 or 7 of these reported waiting to get clarity from GMC on appropriate fix. He asked me to start logging the usage and I'm at around 1 quart every 1500 miles or so. He also indicated that GMC has recommended a fix, but that it isn't fully vetted yet.

Spoke with the GMC folks yesterday and they indicated that not only is the oil log that I've kept to date completely invalid, but they need to test as well and I have to bring the vehicle in several times over the couple months to have them log it. I don't have the time to screw with this. In addition they're indicating that GMC is saying that 1 quart every 2000 miles is "acceptable" consumption?!?!? I get better consumption out of my 68 Camaro!! I'm in for a lawsuit if they don't back their product and will get the names and info for the other folks in the area experiencing this.

If they won't fix, I won't buy GMC again and will definitely get resources behind putting the bad word out there ... and I have the media resources to get that going!

- Darren I., Warren, OR, US

problem #4

Oct 012010

Yukon XLT V8

  • Automatic transmission
  • 50,000 miles

We are having the same problem with our Yukon. Problem is that we don't feel the dealer is being honest with their measurements. Anyone know how many quarts low before the "Check Oil" light comes on? They are telling us, when we take it in every 1000 miles (when the light comes in) that it is only a quart low. One time they told us it was two quarts.

At any rate, how does one go about starting a class action lawsuit. There are enough people out there having this problem and this crap is for the birds.

- Adam H., Warsaw, IN, US

problem #3

Jul 312009

Yukon SLT 5.3L

  • Automatic transmission
  • 54,000 miles

My 2007 Yukon has been using 1 to 1 1/2 qts. of oil every 1000 - 1500 miles. Have been complaining to dealer ever since. We now have 88k miles and I hope i am getting somewhere. We have attempted the oil consumption test since last July, but ran into numerous problems including the instrument cluster going out, therefore not being able to monitor the mileage. Either way I got that fixed for $450.00 and 2 attempts to replace the unit. 1st attempt they programmed the mileage in wrong and my vehicle had 800k miles on it when they returned it. They got it right on the 2nd attempt.

We were now on our 4th oil consumption test. We were three weeks into and had already added 1 1/2 qts of oil in 1500 miles, but this time we notice a rough idle last Friday night. And then the Check Engine light came on. I took it to the dealer that Saturday morning and the error code the pull said the vehicle had a mis fire in # 2 cylinder. They have now had it 5 days and have install a sheild under the cylinder to keep oil from splashing up into the cylinder. I don not like this idea, it like having a broken window in your house, but instead of finxing the window, you install a canopy over the window to keep the rain out.

I have complain and the dealership seems to understand but says they have to follow the GM protocol for this issue, so the obviously are aware of the problem. We will now start another oil consumption test and see how there "fix/bandaid" works. If it does not then they say they will then replace the rings etc. (rebuild the engine). I am keeping my fingers crossed but this does not give me great confidence in GM or my vehicle. I had hopee to get 200k mile out of this vehicle like I did with my 2001 Yukon. Maybe it is time to consider Ford, Infinity, or Toyota for a big SUV.

- twomack, Dahlonega, GA, US

problem #2

Apr 012010

Yukon 5.3L V8

  • Automatic transmission
  • 35,000 miles

The Yukon has excessive oil consumption, roughly 2 qts. every 2,000 mi. Just discovered many other GM vehicles with same engine (5.3L V8) having same problem. Been given runaround by dealership--multiple "consumption" tests, no fix recommended, supposedly within acceptable consumption range. Dealership has not once suggested to me that this is a design problem or that the problem is common with my make/model of vehicle. At $40,000+, should not have to add a qt of oil every 500-1000 miles. Haven't had to do that since owning a 1981 Datsun 510. I expect more and am tired of being put off by the dealership and GMC. Anyone aware of a fix that actually works other than engine replacement? Anyone having any luck getting the dealership to actually acknowledge this is a design problem that needs to be addressed globally?

- ro7904, Derby, KS, US

problem #1

Apr 012009

Yukon XL 5.3L

  • Automatic transmission
  • 20,000 miles

I live in Mundelein and use Libertyville GMC for service. I believe the service manager there, Eric has gone to bat for me plenty about this, we are friendly since I have been there about 5 times for this problem! I have had valve covers, a head gasket, rocker arms, lifters all replaced and it is CURRENTLY in the shop there again today. My guy says that my vehicle has gone the farthest with this that he has seen in THAT dealership. Something about the production date and a "sharing" of Chevy Suburban motors on a couple handfuls of Yukons. Libertyville Chevy is replacing Sub. motors (crated) left and right.

I love my truck and it is GREAT otherwise, (36K on it) but I feel like the engine has been "molested" enough already! I don't think any more "rebuilding" is beneficial to the integrity of the vehicles future! I appreciate your comments about GM waiting for the warranty to run out. Makes sense! I am wanting to talk to the regional GM service rep in person and ask why his company thinks that after I spent $40K on their vehicle, why I don't deserve some better consideration, ESPECIALLY since the problems of last year for them, and do they REALLY want my return business? I am happy with my relationship to Eric the service manager there, and do believe he is trying his best for me, but loyalty has to count for something! And by the way, the approval they got today was to replace the rings on the pistons. Is that done by a MACHINIST or a TECH? Can I watch?

- kutndry, Mundelein, IL, US