2007 Chevrolet Suburban 1500 Q&A
2007 Chevrolet Suburban 1500 Question: 2007 Chevrolet Suburban excessive oil consumption
How much oil are you needing to add? Is there any evidence of a leak under the car. The car is awfully new to be consuming excessive amounts of oil between services. You are under warranty, so I would take it to the dealership to see if there are any problems that need to be fixed. - matte
I have a also have a 2007 Suburban that has this issue. It started at 20,000 miles and has had 4 major repairs done and still consumes. I finally took GM to court under the Lemon Law. I have all the service bulletins that discuss this problem and an e-mail from GM that states after all these repairs have been made and it still consumes oil-don't fix it, GM is still reviewing the problem. If you have done any research online, you will see many cases like this. - msampair
Update- I just brought my 2007 Suburban for low oil problems. The dealer told me there is a new service Bulletin out from chevy. It states that is within chevys acceptability range to burn 1qt of oil per every 1000 miles... I think something's wrong here .... - skidazys
I also have a 2007 Suburban, low oil light came on after the first 3000 miles. We added a quart, then took it into the dealer. The service manager told me that this was normal for the engine, and that they would have to monitor it every 500 miles to confirm. I am just glad that it's a leased vehicle, soon it will be someone else's problem. I had a 1999 Suburban for 8 years, 150000 miles, and never had to add oil. Same engine. - jmm
No its not normal. This is a fraud. Let me explain. A client of mine (I am an attorney) made a Lemon Law claim, GM ignored/denied her claim, and then we were supplied with an Internal PI (preliminary investigation) report that outlined the oil consumption problem stating the cause was unknown (although thought to be stuck piston rings) and that replacing the rings was no guarantee because, again, the cause is unknown. Meanwhile, GM pretends there is no problem (that it's within there oil comsumption guidlines which were created arbitrarily to combat these complaints), when not only do they know a problem exists. However, its simpler to deny that a valid claim/problem exist because they don't know what the cause is or how or if it can be fixed(thus, a recall would be pointless). - Visitor
I am having the same issue with mine! - cfhnath
I have a 2007 Suburban which I purchased used. Did not take long for the oil light to come on. I use approx 1 quart every 600 miles. After sitting for 6 -8 hours, a great deal of blue smoke comes out of the tail pipe. Does not do it while driving. Have been working with my dealer tracking oil consumption. They finally agreed that something was wrong an asked me to leave it with them so their engine guy can do a diagnostic. The day i was going to take it in, i recieived a call and was told by the service guy that they had heard from GM regarding this issue and that they were providing a replacement part to be installed that would solve this problem. Strange that they know this will solve the problem when hey really do not know what the problem is....anyway....I am documenting and will not be satisfied until he problem is fixed. - Visitor
I have a 2007 Suburban 5.3L. I purchased the truck with 33K miles and was surprised to have the oil low light come on before my first oil change. I changed oil and soon found that it needed 1 qt between changes (3K intervals). Now with 54K miles the engine oil low light comes on approximately every 1000 miles. I have consistently added 1 qt as soon as the light comes one and continue to change oil at 3K intervals. I've owned many vehicles over the years (including a 1966 Internationsl Scout with over 150K miles) and have NEVER had anything use this much oil. Very dissappointing. - Stederski
I bought my 07 suburban new and have had oil leak/oil consumption issues from the start. 1st it was oil pan gasket. Then oil pan and rear cover were replaced due to defect during manufacturing. Then it was the front cover gahebsket leaking oil. Finally, the dealer said that GM has determined that the lifters are the cause for all of the issues. Supposedley, the lifters are pumping to much oil and GM is in the process of "re-engineering" the lifters for replacements. They originally told me parts would be ready Sept. 09. NOT! Then it was Dec. 09. NOT! Then it was March 2010. NOT! Now its Oct. 2010. We'll see. Regardless, I'm done with GM vehicles. This is second one in a row with serious issues. We had a 2005 GMC Yukon that had 3 steering gear boxes replaced in the first 36,000 miles. I buy new vehicles so I don't have to deal with issues like these. GM's response to the oil problem is pathetic. - jgc
Pissed! I have an 07 Sub and it has been loosing 1qt per 2000 miles since about 50,000 miles. Up to 1.5 qt in 3000 miles now. This is my 5th new Sub and never had one use oil before - something wrong with this 8 / runs on 4cyl engine I think. Local dealer is documenting every 1000 miles now. Its a shame as I avg 17 mpg and I pull a lot of stuff! I don't think paying for 6 qts of oil every 3000 mile change plus 1.5 inbetween is NORMAL to me!!! - Visitor
Sounds like plenty of of us have this problem to varying degree's, but nobody has a solution. Any lawyers out there want to start a class action suit ? - skidazys
I'm having the same issue with my 2005 suburban, big cloud of smoke upon start up and burning a quart every 500 to 1000 miles. Deal says they cannot find any issue. - Visitor
I have a 2008 Suburban with 59,000 miles. I just took it in because the check engine light came on indicating low oil pressure while the engine oil life indicator says 43% oil life left (the dip stick was dry). Dealer changed oil and now wants to check oil consumption very 1,000 miles to see if it is within GM's "oil consumption guidelines." What a waste of time. There is definitely something very wrong with these new engines. I have owned a 1997 and 2004 and still own a 2002 with well over 100,000 miles and never have had any oil consumption issues. I am just glad I am getting this documented while under warranty. - EpargRevol
We have a 2007 suburban and it started losing oil at 50k miles. They are saying that its typical loss....but it never happened before. Its been a pain trying to get the oil consumption test every 500 miles and they seem not motivated to fix the problem...there fix is to put a pan from "splashing" oil.....bummer!! - Visitor
had the same issue...then it got worse, they put on new lifters, problem persisted. They finally put in new pistons...last night the drive shaft broke. My payment is over $800 per month and I'm tired of this. What can we do??? - Visitor
No not normal. GM has a series of fixes they have to follow. 1st is a baffel in the oil pan, also make sure that you have the update valve cover on the left side of the engine with the larger pvc port, if oil consumption continues the next step is to replace the pistons. - Visitor
Update on my 2007 suburban. I was having the same issues as everyone else which started at about 30,000 miles. Oil consumption blue smoke on startup, and constantly going to the dealership for the dreaded oil consumption tests. The dealership was pretty good with trying to fix the problem but it seemed like it was a trial by fire type of fix, like the oil baffel install and then replacing new pistons/ and rings, but it wasn't until I documented the plume of oil smoke when I started the engine that they really started looking at it (posted it on youtube). At 86,000 miles (thats 50 + thousand miles later) They found a solution that seems to be holding so far (its been 3000 miles) no blue smoke and no oil consumption so far. They were going to take my suburban in to rebuild the valves etc but found a service bulliten stating that some to the pcv valves were defective so they replaced the left valve cover (it has a baffel built in to prevent the oil getting slopped into the pcv valve causing oil consumption. they also replaced the pcv valve. I hope this solves our problem, I will keep you all updated - Visitor
I just convinced my dealer my 2007 Suburban had an oil consumption issue. 1 quart per 1444 miles. Key points if you are having the same. At the start of the test take the service manager out to the truck to agree where the oil mark is starting on the dip stick. With me it was about a 1/4 inch above the fill line. When you take it back to have oil added observe the tech adding the oil. The tech only added oil to the fill line, when I showed him the agreed start level. That made the difference. Now let's see if it can be fixed. What a headache - mikesee
I to have a 07 Chevy Suburban that burns through the oil brought it in many times with one fix “splash guard” before the warranty expired brought it back in same problem only to be have the fix pushed off until after the 100000 mile mark by delaying with consumption test. At that point they replaced the rings and pistons, a few thousand miles later had the #3 cylinder misfiring at 107000miles come to find out the cam is shot and the lifters! They are not covering it due to being over and are only willing to do a 50-50 repair stating they fixed the oil consumption problem and worn out cam and lifters are another issue. I need a good lawyer! - crashfirejoe
Mine has been using excessive oil since less than 10,000 miles. First PCV valve replaced. Then service bulletin number 10-06-01-008a for the deflector “fix” It hasn't fixed my 2007 suburban. Now ...
Was a class action ever filed? Have been dealing with oil consumption for years, deflector installed minor impact but still using oil. Recent problem with engine light and service stabiltrak error ...
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