Last post on Dec 03, 2013 at 1:46 PM
You are in the Chevrolet Suburban & Tahoe
What is this discussion about?
Chevrolet Suburban, Oil, SUV
#12 of 80 Re: 2007 Suburban Oil Usage [jenn1974]
Jan 15, 2012 (3:00 pm)
Jenn1974: Have you found the bullion and how did or what was the fix on your suburban. This information will help me with my continuing 2007 burb problems.
My first Suburban was a 2000, 2nd was a 2004 Z71, and the 3rd is a 2007 LTZ. My 2004 has 86,000 miles, and I have not had any problems. We still have it. The 2007 was bought in May 2006, and I’m afraid it’s the worst ever. It has used oil, a lot more than the 2000 and 2004. Oil light comes on, I change the oil! 88,000 miles and now out of warranty! The five years got me. I am affiliated with a very large automobile repair facility in Reno, Nevada, and I’ve had the car serviced regularly. That’s what you do when you work in a garage.
The last few mornings I noticed a puff of smoke out the tail pipe which is not good, I am told. So I asked my mechanic what is the worst case. He tell me “rings” or valve guides, about 6-8 hours shop time plus parts. But if it’s rings, he tells me to shop for a short block crate motor from GM. The engine rebuild will be expensive. My mechanic has not mentioned (as I read in certain forum responses) that there is an oil consumption test. Does anyone have any information on the notices or bulletins that may be circulating?
So I ask Chevrolet Suburban owners the question, “Is 88,000 miles all we can get from the 2007 and newer Suburbans?”
#14 of 80 Suburban Oil Consumption
Mar 28, 2012 (2:21 pm)
I have an oil consumption problem on my 2008 Chevy Suburban with 108,000 miles. According to GM Service Bulletin #10-06-01-008D (Document ID 2752513), this may be caused by two conditions. “Oil pulled through the PVC system or oil spay that is discharged from the AFM pressure relief valve within the crankcase”
I first noticed the problem at 82,750 miles and since then, the dealership has performed several oil consumption tests and installed two different valve covers with no success. The last two oil consumption tests documented that my suburban used 2 or more quarts of oil in 3,100 miles. According to GM one quart of oil every 2,000 miles is “acceptable”. The oil consumption test completed today showed that my Suburban used 2 quarts of oil in 3,123 miles; this exceeds their “acceptable” oil consumption. This test was performed after the 2nd valve cover was installed. The dealership said they have been in contact with GM about my problem and that a case number has been assigned to my Suburban. The dealership said they are going to report the latest findings to GM and wait for instructions on what to do next.
Anyone know if GM is going to honor their 100,000 engine warranty and fix my problem or are they going to deny my warranty and claim that I have over 100,000 miles on my vehicle? I’ve expressed my concern to the dealership, several times, that I felt like I have been strung along since the problem 1st started and now that I’ve exceeded 100,000 miles, they are going to kick me to the curb. The dealership said no this won’t happen.
I’ve read several posts about Suburban and Tahoe oil consumption but didn’t see how any of the problems were handled by GM. Any information on how to proceed would be greatly appreciated.
#15 of 80 Re: Suburban Oil Consumption [low2quarts]
Mar 29, 2012 (5:29 am)
We'd be happy to look into this with you, if you like. Please send us an email at socialmediagm.com with the following information: your name/Edmunds username, phone and address, the last 8 digits of your VIN and current mileage (which I realize is listed here, but it's helpful to have everything in one place), and the name of your dealership.
With that information, we will set up a Service Request for you and can then explore any options available. However, I cannot make any guarantees up front on what the final result will be.
All the best,
GM Customer Service
#16 of 80 Re: Suburban Oil Consumption [low2quarts]
Apr 10, 2012 (1:42 pm)
I wish you luck. I noticed that the oil consumption in my 2007 Suburban was more than my previous one(2001), but it didn't really concern me(it should of). At 110,000 I heard a couple tinny noises coming from the engine, then it ran fine for another 20 minutes or so, then one more noise, then the dashboard lit up like a christmas tree. Had it checked and was told by the first dealer it was a misfire in cylinder 6, after a initial diagnosis, they said it was a probably a bad cam lobe. There was zero compression in cylinder 6. They said since I wasn't the original owner(I'm the second), I didn't qualify as a loyal customer(I've owned 10 gm vehicles over the last 22 years, 4 new), so they weren't going to provide any assistance since it was 10K over the powertrain warranty. After much BS with GM customer care assistance(total joke, plus I believe the call center is not in this country), they also said the same thing. I'm currently installing a re-manufactured engine in my last gm product I will ever own. I would advise anyone that is considering a Suburban, especially a 2007 with the 5.3L, to re-consider. These engines have problems, and GM will not back you on them once it is out of warranty. Sad that a $50K vehicle has to have a new engine at 5 years and 110,000 miles. I am having the old engine pulled apart to determine what failed and will post the problem when I get it.
#17 of 80 Re: Suburban Oil Consumption [low2quarts]
Apr 12, 2012 (7:36 am)
Following up on my oil consumption problem. As you can see from this post, GM Service contacted me for more information. After supplying the information, they apparently contacted the dealership and it was decided that all pistons, rings and valve stem seals would be replaced. I picked up my Suburban yesterday afternoon and all seems good. Will follow-up after my next oil change to let everyone know if the oil consumption problem is solved.
In response to bnahikian’s post, sorry to hear about your misfortune. I too owned multiple GM vehicles. Seven in all, with last 3 being Suburbans. I fully expected I would be posting a similar story but GM came through for me. I just hope the problem is fixed.
#18 of 80 Oil Over Consumption
Apr 24, 2012 (12:27 pm)
My 2007 Suburban was identified as consuming oil beyond GM specifications first noted at 33,000 miles. Service tech told me that overconsumption was identified. When I returned the truck to be repaired he had 'lost the documentation and said that because it was his first overconsumption test he did not know what to do'. Started second oil consumption test at 57k. Documented that Truck uses 1 quart per 1444k miles. After determining this Service manager told me that was within GM specifications, that's when I had to pull the out the Chevy Specifications document and read it to him. He told me to bring it in but was unable to tell me what was to be done or how long it would take.
If this is occurring to you, here is some advice: At the start of the consumption test agree whith the tech/service manager where the oil mark is on the dip stick. With my truck, after the GM oil change, the oil line was above the add line at the start of the test. When you bring the truck back observe how much oil is being added. The service tech said it was full at the top of the hash mark on the dip stick, but that is not where the oil test started! Maybe it is only my dealer but you need to watch everything like a hawk.
#19 of 80 Re: Suburban Oil Consumption [bnahikian]
May 02, 2012 (12:41 pm)
I'm in a similar boat. I purchased an 07 Suburban last August with 45000 miles on it, still under GM drive train warrenty for another 7 months and 55,000 miles. After owning a 1990 GMC Suburban, a 1999 GMC Suburban (which we still have), and a previous 1986 GMC Jimmy which all worked out very well, we decided to get a newer used one. One month after driving it around the low oil light came on, down a quart so I filled it up and thought that was odd since the oil life had read 99% when I purchased it. Another month later down a quart. I filled it up and took to the dealer then did some research on oil consumption and found it's a known issue. The dealer (not the original I purchased from because they are much farther away but happened to have the specific Suburban with options I wanted when I purchased it) started me on a monitoring schedule. Basically between 980 and 1200 miles i was down a quart which is below GM specs (they believe 2000 miles for 1 quart of oil is OK.) They did both remediations, the pcv/valve cover remediation and then later the oil pan remediation of which neither solved the problem. Now the dealership is giving me the run around. They won't contact GM on it and are trying to reach my extended warranty company, but getting put on hold for long periods of time where they have to drop. They told me GM won't do anything more beyond the two remediations. I'm outside warranty now (over 5 years old) but I reported this within warranty, so fighting it via that angle for the momment. I've told them I want in writing from GM that they won't fix this, but so far not getting far, still dancing with them.
#20 of 80 Re: Suburban Oil Consumption [nhchevyowner]
May 03, 2012 (7:02 am)
Have you contacted Customer Assistance already? Just wondering! If we can be of assistance, please let us know by getting in touch via email at socialmediagm.com
GM Customer Service
#21 of 80 Re: Suburban Oil Consumption [bnahikian]
May 03, 2012 (12:10 pm)
I have the re-manufactured engine installed and it is running fine, although between the dealer charges and new engine my wallet is $5,000 lighter. The guy that replaced the engine tore down my engine and wasn't exactly sure where the problem came from. The dealer's preliminary diagnosis was a cam lobe problem. All that could be noticed is that the valve in #6 wasn't seating properly, looked like some contamination, maybe coolant on the top of the valve, so there may of been a slight crack in the head. After he pulled the head, the oil ring on the piston was broken, and one of the compression rings was frozen in the compressed position. I will post the pictures when I download them. So I don't really know what caused the failure, and glad I didn't spend the $1,100 the dealer wanted to pull the engine apart and diagnosis it. Either way, the problem is definitely a mfg. defect. As I said before, GM customer care was a joke.