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CarComplaints.com Notes: Engines shouldn't need a new quart of oil every 500-1000 miles, but for thousands of Suburban owners that's exactly what's happening. Engine oil consumption on aluminum block engines with Active Fuel Management (AFM) is out of control and owners are left looking for answers.

The most likely culprit is an uncovered AFM valve which, in many cases, can be covered under warranty. The problem is the issues don't stop there and many owners have been told by GM just to buy a new engine. Take one guess who they want to pick up the tab.

7.6

pretty bad
Typical Repair Cost:
$410
Average Mileage:
65,000 miles
Total Complaints:
186 complaints

Most Common Solutions:

  1. not sure (65 reports)
  2. nothing got resolved (53 reports)
  3. chevy needs to fix (27 reports)
  4. replace engine (15 reports)
  5. splash guard to be added in oil pan (5 reports)
  6. replaced cylinder heads (3 reports)
2007 Chevrolet Suburban engine problems

engine problem

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2007 Chevrolet Suburban Owner Comments (Page 4 of 10)

« Read the previous 20 complaints

problem #126

Oct 012010

Suburban LT 5.7L Litre V8

  • Automatic transmission
  • 125,000 miles

A D V E R T I S E M E N T S

This is my 5th chevy suburban and the worst. It started going thru a quart of oil every 3000 miles and gradually got worse to the point of a quart every 800 miles or so. Dealer did an oil test and said it was within GM spec. Many people have the same issue. At this point, nothing wll be done about it since it has over 120k miles.

Very disappointing!

- Steve M., Bridgman, MI, US

problem #125

Sep 032012

Suburban LTZ 8 cyl

  • Automatic transmission
  • 74,000 miles

I purchased this Suburban and noticed oil consumption was excessive. I took it to the dealer who advised that GM says using 1 quart of oil each 2000 miles is not excessive. That means if I go 5000 miles between oil changes as they suggest, I will have exactly half the oil I am supposed to have. I said to my service guy at the dealer and he said "yea, thats right, so I said and the engine will be OK, he said yea. I find that difficult to believe.

- Jack K., Wilmington, NC, US

problem #124

Oct 232012

Suburban LTZ V8 Flex Fuel

  • Automatic transmission
  • 132,000 miles

Took my 2007 Chevy Suburban into Rick Hendrick Chevy Duluth GA to have it checked out because the stability track notice showed up again for the second time in less than 6 months and they told me I need new engine for $8k - I was totally shocked at this- I paid $53k bought brand new from them have an impeccable service record do not abuse the vehicle (mommy drives it) and am 1 payment away from actually owning it and bam get hit with this nonsense. We elected not to put engine in service manager never told us about this issue of engine burning excessive oil nor did I (EVER) get any notice from Chevrolet regarding this issue. They kept us in the dark. Now the (known) problem has reared it's ugly head and I'm out of warranty and stuck with a SUV that needs new engine. Well guess what, I'm not going to go down with out a fight- my wife has called Chevy Customer ( no service) and spoke with numerous people getting the runaround and hitting a rude person who said she is the last and only person we can talk to- she was so rude my wife was in tears- that was as of Friday 10-26-12.

I started to do my research on the Internet and googled (chevrolet suburban 2007 engine complaints and found numerous complaints about the same issue- why didn't the dealership tell me of this issue? Why because they are trying to make more $$ off of me by either service repair( new engine) or selling me new vehicle.

They were nice and accommodating but my choice is to have Chevrolet put new engine in at their expense- not mine and i will fight for this resolve all the way to the top if I have to. I will make it my life mission to dog Chevrolet if my situation is not dealt with to my satisfaction- next step Clark Howard, and every other consumer advocate I can find to expose this problem

NMcCulloch

Suwanee, GA

- linkyourhousega, Suwanee, GA, US

problem #123

Jun 112012

Suburban LT 5.4L

  • Automatic transmission
  • 101,000 miles

A D V E R T I S E M E N T S

This is my 7th Suburban. My last one (2001) was the new 6liter and thought it would be a problem. It turned out to be my best. Sold at 180k miles with no real problem. I purchased this 2007, used and appeared to be in great condition. However, I noticed I needed to add oil before 3k oil change. I started monitoring it, and now adding 1qt every 1500 miles.

- hedinj, Carlsbad, NMex, US

problem #122

May 162012

Suburban LTZ 5.3L

  • Automatic transmission
  • 99,500 miles

Noticed significant oil loss between oil changes. Eventually, the Add Oil Light came on prior to normal 3000 mile oil change. Usually took 1 -2 quarts.

Took to Bennett Chevrolet in Kingsland, GA. Did the Oil consumption test. Dealer agreed there was an issue. Conducted next level maintenance (additive, screen in pan and new cover). Appeared to correct the problem. Went on 500 mile trip, issues resurfaced. Called dealer.

Conducted second Oil consumption test. Dealer agreed there was an issue. Conducted completed motor rebuild at no cost to me. Only cost was dealer recommended I replace the spark plugs, so all components on the engine are new. I agreed ($100).

Has been 20000 miles since rebuild, problem (knock on wood) has not resurfaced. I am very nervous because like most people I have owned, and currently own, vehicles with close to 200,000 miles on them that burn little to no oil. If this is a class problem...Chevy should look at offering those who own these vehicles some form of substantial compensation. I paid @ $60K for my SUV. I planned on using it for several years to come, but I find it hard to rely on a vehicle that has known engine issues.

I am currently having an issue where my Check Engine light keeps coming on. Dealership in Summersville, WV conducted a "Smoke test" when I was on vacation. Along with the $80 diagnostics, It called out a fuel system components that cost @ $100. They assured me it would get me back to my home in GA. I took it to my local dealer who replaced the part. Two weeks later the light reappeared and I noticed fuel leaking from under my vehicle when I fill up. Took it to my local dealer and it cost me another $200 to repair that part. A week later the Check Engine light reappeared. This time it called for a gas cap replacement ($35). Now a week later it has reappeared, so I am going to the dealership one day this week to continue the saga.

- bbutler, Woodbine, GA, US

problem #121

Aug 302012

(reported on)

Suburban LS 5/3

  • Automatic transmission
  • 46,000 miles

07 Suburban with an oil consumption of 1 plus quart per 1000 miles, Dealer did the recommended service that GM instructs all dealers to provide, oil baffle in oil pan, new valve cover and pour a chemical down the cylinders to remove carbon buildup in rings and pistons. Did not help. Now GM has given me three options. 1, Remove and replace pistons and rings with full warranty. 2. replace the engine at a $3000 cost to me. 3, give me three $3000 off the price of a new vehicle. Although the dealer has a great service reputation and has been first class to me, i don't think i want someone inside the engine. I can just imagine a multitude of issues down the road that GM will say, "you are out of Warranty sorry". So i think i will opt for the new engine but upset about the $3000

Any feedback out there, someone mentioned "Class Action Suit"

- dishawcues, Syracuse, NY, US

problem #120

Dec 082011

Suburban 5.3L V8

  • Automatic transmission
  • 36,000 miles

A D V E R T I S E M E N T S

I own a 2007 Chevrolet Suburban LTZ. Despite the two to four miles to the gallon I get as the car accelerates I enjoy the vehicle. The car now has about 56 thousand miles on it. About 15 thousand miles ago or about a year the message to add oil started to appear in between oil changes. I would check the oil and realize I was down a quart or a quart and a half and add oil as necessary while still performing regular maintenance. After two oil changes and consistently having the light come on and alert me that I needed to add oil I took my vehicle to Kevil Chevrolet in Budd Lake, NJ for some answers. It seemed apparent to me that this was not an issue that they were unfamiliar with and added a splashguard. This did not solve the problem. I informed the service department that it was still burning a quart of oil every 1000-1200 miles and they told me the next step would be an oil consumption test. Although the nearest Chevy dealership is about 40 miles round trip from my home, I agreed to come in every 500 miles to perform the test. The test proved conclusively that my car was burning about a quart every 1000-1200 miles and they said I could go ahead and schedule a service appointment where they would “take it to the next level”. Personally I thought that the next level would be something extensive because I had done some research and was aware that 2007 vehicles had been reported to have a nick in the valve stems that could cause excessive oil consumption. I need my ca and put off the “next level” of service for several months. I scheduled my appointment and after 48 hours of being without my vehicle they claimed they could find nothing wrong with it. “Did you do anything?” I asked. “Well your oil is fine.” They said. At this point I reminded them that my car was not there for an oil change, I monitor the oil very closely and have even switched over to synthetic and the reason my car is there is for the “next level” of service. ‘’Oh they said we’ll get back to you.” After 5 days of not hearing back I called them and was told that basically they had done nothing to my car and had lost the paperwork on my previous oil consumption test. And I would have to start from scratch driving 40 miles round trip every 500 miles if I wanted to have proof that this was happening to my car. This is not a new thing for 2007 GM cars, especially trucks. This is practically a factory recall and is without a doubt an inevitable class action suit. Numerous websites are dedicated to this problem, i.e.; http://www.carcomplaints.com/Chevrolet/Suburban/2007/engine/excessive_oil_consumption.shtml http://chevroletforum.com/forum/tahoe-suburban-25/need-assistance-vortec-5-3-2007-sub-consuming-oil-34205/ http://www.edmunds.com/chevrolet/suburban/2007/consumer-reviews/oil-consumption.html?style=100699470&sub=&reviewId=199941753 http://chevrolet.pissedconsumer.com/2007-suburban-oil-consumption-issue-20120225300051.html http://repairpal.com/2007-chevrolet-suburban-excessive-oil-consumption-689 http://nastfenews.org/index.php?option=com_content&view=article&id=77:excessive-engine-oil-consumption-in-certain-gm-trucks-and-suvs&catid=53:beyond-the-vin&Itemid=55

I could continue to list page after page of disgruntled GM customers, some even being told by GM that this falls within acceptable limits. The bottom line is that Chevrolet vehicles are supposed to be dependable for 150,000 miles and you got engine malfunction at 30 thousand and nobody will do anything about it. I am going to try to sell my car if I can’t get this resolved and definitely will not be buying another Chevy.

- 2007 suburban ltz, Mendham, NJ, US

problem #119

May 092012

Suburban Z71 5.3L V8

  • Automatic transmission
  • 130,000 miles

Bought it when it was two years old with 65,000 miles. No problems with oil consumption until the past couple of months. I read all of the other complaints and did not see any permanent fix. I have worked on cars my entire adult life and can assure this is not normal. I own two other Chevrolet trucks and neither of them use oil and they are much older. Has anyone had the valvestems seals replaced on their engines? It is possible to lose a significant amount of oil through them if the seals are bad as it would be burned through the exhaust.

- David S., Mart, TX, US

problem #118

Apr 152010

Suburban LT 5.7L

  • Automatic transmission
  • 93,000 miles

I have a 07 Chevy Suburban that burns through the oil. I 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!

- robertsonwa, Port Orchard, WA, US

problem #117

Jul 012011

Suburban

  • Automatic transmission
  • 70,000 miles

tired of paying for oil that is by the way not cheap. i have to add oil between oil changes at least 3 times. the dealer hade my car for a week tried to fix the problem was better for a little bit but now i have to add 5 quarts of oil in between oil changes this is not normal.

- Jackie S., Lothian, MD, US

problem #116

Jan 012009

Suburban 5.3L V8

  • Automatic transmission
  • 35,000 miles

A D V E R T I S E M E N T S

I am like everyone else. bought my 2007 suburban late in 2006. After about 35000 miles started having the engine oil light come on even though it was not time for a service. Initially Chevy did the fix with the pan but this did not solve the problem. We then started having to bring the car in to Chevy so they could measure the oil usage. Today 6/20/12, we were told that according to Chevy our suburban was burning oil within acceptable guidelines.. I am sorry I paid $50 + thousand dollars for this car it should not be burning oil at all. I also have a complaint about fuel economy. I have never gotten better than 12 miles to the gallon whether it is in town or on the freeway. My 99 suburban was great.. this one is a disappointment.. If I had the money I would buy a Ford.

- Craig W., Spotsylvania, VA, US

problem #115

Sep 212011

Suburban LT 5.3L V8

  • Automatic transmission
  • 45,500 miles

We purchased a 2007 used Suburban in August of 2011. One month and 999 miles later the low oil light came on even though the dash showed 99% oil life. I added a quart.

About a month later and roughly another 1,000 miles same problem. I added a quart and took it to the dealer whch they started me on the oil consumption monitoring. Every 1,000 it was down a quart and they added the deflector under the valve cover, but this did not resolve the issue. We began the oil monitoring and since it did not resolve they added a fix in the oil pan and started the monitoring, but again this did not resolve the issue.

I reported this under GM warranty with 6 months left on the 5 year warranty, but after the second fix and while working out what we do next the warranty crossed into expiration territory so the dealer said that was all GM would do and would not open a ticket with GM. I did so myself and after some back and forth and the rep talking over me several times telling me I am out of warranty (to which I stressed that the issue was reported well within warranty and never resolved and that this is a defect reported all over numerous forums on the web.) They forced me to go to my secondary warranty first (a warranty i'd purchased at the time of sale from the dealer) GM indicated this is what they legally are required to do as next step.

They agreed although nothing in writing which makes me nervous to cover the cost if the warranty co. did not. I had to tear down the engine for that warranty co to even decide if they were to cover anything. Well the engine is torn down and sitting open in the shop and they can't find anything supposedly wrong with it, so the warranty co is not going to pay for the tear down or any fix.

Now GM is determining what if anything they will cover and do next. They may replace the pistons and rings, they may put in a new engine, or they may simply expect me to pay for anything that is done. I am hoping that they stand by their word to cover the cost if the warranty co does not as they told me over the phone. I'm really saddened by all this. I have been driving only GM trucks since my first truck and over 25 years.

This is my third suburban, the second which I still have, has over 200,000 miles and never needs a drop of oil between changes. I am saddened to see the hassel I've gone through, the poor quality of this engine, the amount of complaints on the web, and will really be upset and further saddened if they walk away from their responsibility to loyal long term customers. If this happens, while I love the suburban, I can't see my self ever owning another GM truck. I hope they restore my faith and stand behind their product. I'm rooting for them and me.

Update from Sep 7, 2013: After wrestling with GM they fixed the issue.

Recap of the problem. I purchased the vehicle 07 Chevy Suburban August of 2011 used from a Chevy Dealer with 45000 miles on it. Still had 5 years 100,000 warranty in place which would end in March of 2012 roughly 6mths. I also purchased an extended warranty from them (third party which they told me was a great warranty company. Intestate warranty). Anyway after a few weeks I noticed the oil check light on, I added a quart figured the dealership had not filled or something. Then another few weeks the same. It was burning oil in less than 1,000 miles. I took to a dealer closer to my home than where I'd purchased and the monitoring started, every 1,000 miles I'm in, most often I didn't make it to that mile marker because light came on. They did one fix based on a bulletin and then more monitoring, then another recommended fix per bulletin and said have a nice day, problem persisted and they told me GM would do nothing more. They said my warranty had now expired, but I told them, doesn't matter I reported the problem while under warranty so they must fix it. I believe they do this monitoring and fix one buliting then another over time to run out your warranty. They told me when I pushed on them that they were trained by GM on how to deal with this issue. asked the dealer to call GM on my behave and they would not, so I did. GM assured me they'd address it. I told them the dealer would not call them so they called the dealer and then the run around. When they found out I had a warranty company they told me I had to go through the warranty company. The warranty company said they had tons of calls with the same issue and the engine would need to be torn down to see if it was normal wear and tear or something broken and if nothing broken was found they would not be responsible for any cost, not the tear down, not any fix, nor any reassembly. GM assured me if that was the case they'd fix and pay for it, but nothing in writing. I took a BIG chance and BIG leap of faith with them after some of the screaming matches I had had on the phone with the dealer and with GM directly. Well they tore it down and the warranty company says nothing found only normal wear and tear. GM stood by their word and replaced the rings, $1800 job according to them.

The problem is caused by oil build up which occurs with the active engine management, when running on 4 cylinders. That oil build up doesn't allow the rings to function normally and causes oil to squeeze by the rings and get burned with the gas so you loose oil overtime more rapidly.

The remedy (the two bulletins) they performed at the beginning only avoids the problem if your rings are good. Once they've gone bad, it won't help. The dealer later fessed up that they don't know why but seems some engines have the problem others don't. One possible cause is going over 5,000 miles between oil changes. The computer that alerts you to an oil change based on your driving may detect it's not needed and go way beyond that, dealers tell you, you don't need to change the oil for 10,000 miles, but it's bogus, stick to 3-4,000 to be safe.

Another possible cause is issues with some plants that built the engine and poor quality control. Be careful buying used GM trucks with the 5.3 they may have this issue. The newer ones I believe are sorted out now.

The truck has had no further oil consumption issues after 2 years. I now have 87000 miles on it. I took it in for an inspection last week and they found upper and lower ball joints were bad and left control arm (kind of surprising to me for a truck with less than 100,000 miles, my last suburban has 204,000 miles and I've never had to change any ball joints or control arms, only tie rods once. Guess they really don't make them like they used to. That one is a 1999.) Anyway the warranty company, interstate, paid for this whole repair even the alignment.

- nachoman, Auburn, NH, US

problem #114

Aug 032009

Suburban LTZ 5.3L Vortec V8

  • Automatic transmission
  • 46,000 miles

Like many on you, we have been dealing with excessive oil consumption since 46,000 miles, with no real fix from GM. We are at 109000 now and still dealing with frequent trips to the dealership. The dealership "can only do what GM instructs", so we have been through the "oil consumption logs",service bulletins and what I call tearing my engine apart only to have the problem resolve for a short period. There is something wrong when you spend $60k on a vehicle and have these kind of issues. GM should have dropped new motors in these vehicles! I haven't even mention the multiple other problems (malfunctioning running boards, cargo door, windshield wipers, door handles, rear defroster...).

This was our second and last suburban or any other GM product! Shame on GM!

- Lisa B., Suffolk, VA, US

problem #113

Nov 302011

Suburban LT 5.3L

  • Automatic transmission
  • 99,300 miles

bought this 2007 suburban from a GM dealer. This suburban was a GM buy back. The buy back problem was oil consumption. the GM rep. claimed the oil consumption could not be duplicated. the price seemed reasonable so we purchased the suburban. at the time of purchase it had approx. 83,000 miles. the oil consumption is over a quart in 1000 miles. reaching 100,000 miles we need to carry a couple of quarts of oil with us, never knowing when the low oil light will come on again. Mr. goodwrench has not been any help!! so no thanks go out to GM.

- Kenneth B., Corry, PA, US

problem #112

Jan 112012

Suburban LTZ 5.3L V8

  • Automatic transmission
  • 117,000 miles

Bought the vehicle used from Balise Chevrolet (Springfield, MA) in 1/11. No problems until 6/12. Has been burning oil ever since. No drips on ground, no smoke. Just drinks oil. Adding a least a quart every 1,000 miles.

Searched online and found many complaints pertaining to this problem. Chevrolet and GMC obvious have a big problem here, and GM, which made a record profit last year, doesn't seem to be stepping up to do the right thing. These vehicles should have been recalled long ago. Where are the class-action lawyers? Where is the federal govt.?

- billma, Boston, MA, US

problem #111

Apr 072010

Suburban LTZ 5.7L

  • Automatic transmission
  • 35,955 miles

rlucase@hotmail.com

JUST FOCUS ON THE OIL STUFF THAT IS WHAT HAS NOT BEEN RESOLVED TO THIS DATE 02/25/2012 To Whom It May Concern:

My Wife and I bought a 2007 Chevrolet Suburban 1500 LTZ 4WD 5.7 L with 25,205 miles on June 22nd 2009. This was one exciting day for us as we always dreamed of owning a luxury vehicle such as the Suburban. I have been a Chevrolet fan and owner. We currently also own a 1967 Chevelle Super Sport for which we use to feel so much pride in owning and showing this vehicle at many car shows.

Over the last 31 months or so we have been back and forth to Chevy to get numerous repairs on items such as the battery, leaking roof, electronic running boards, rear defrost, CV boot, brakes, radio buttons that were sticking, moldy head liner, broken door handle, rear camera, faulty electronic folding seats and last but no least the truck has burning unusually high amounts of oil. Many of these repairs took months and countless trips to Chevy before they were fully resolved. The one outstanding and major issue is the high oil consumption which we are still looking for a resolution.

This has put an enormous amount of stress on us as we have taken many days off of work and spent many hours going to the car rental shop filling out paper work each time and then when you drop off the rental its more hassle. They inspect the rental then you standby until they can shuttle you back to the dealer to pick up your car that still not repaired properly.

My biggest concern is what damage has been done to the engine during the years of oil consumption test that Chevy has put us through. We were instructed on many occasions not to add oil because we have not read the 1,000 or 2,000 mile increment instructed to us by the service manager. There was one time my wife called the service manager and said the oil light came on and no oil was reading on the dip stick and he said keep driving because you have not reached the 1,000 mile mark. I then called the service manager and what the heck do you think the results would be if we kept driving with no oil, he then said it was ok to add oil. On another occasion I found that it appeared that they were over filling the oil, was it an accident? I am not quite sure.

There are many blogs and websites that other 2007 5.7L Chevy owners are complaining of the exact issues I have mention here.

I have brought this to the attention of our service representative and the service manager several times. They keep telling us we are following Chevrolet guidelines just to bear with them. I told the service manager I understand there are issues with cars, that does not bother me. What bothers me is that we have been fighting this issue for several years with no resolution.

One of the last repairs was the replacement of the pistons and rings which seems to have slowed down the consumption but not eliminated it. Now when we start the engine after it has sat for a while it makes a nasty ticking sound.

I think we deserve a new engine or a replacement vehicle.

If anyone out there has had this issue (Oil Consumption) and Chevy has resolved it please let me know.

Below I listed the documented trips to Chevy. (this does not include all of the drive bys at 1,000, 2,000 and 3,000 increments)

Vehicle purchase June 22nd 2009 Chevy Certified

8/2009 Electronic Running boards fail intermittently Water leak reported (replaced seal)

1/2010 Battery Died – Chevy Replaced Rear camera fails intermittently Rear electronic seat won’t fold up Radio controls not working due to sticky buttons (never repaired) Chevy Cleaned moldy headliner

4/2010 Oil consumption reported to Chevy Water leak still ongoing after repairs Rear defrost wire broken (Chevy repaired)

5/2010 Oil Consumption still ongoing Chevy replaced left side valve cover Drives side exterior door handle broke (Chevy repaired)

6/2010 Oil consumption reported to Chevy Chevy removed manifold and found no issues Recall on windshield heater (Chevy Removed and disabled)

9/2010 Provide Chevy with several Bulletins 10-06-01-008 Document ID 2524100 Oil consumption reported to Chevy (Chevy installed AFM Oil Deflector and cleaned carbon from cylinder) Water leak still ongoing after repairs (Chevy repaired) Electronic Running boards fail intermittently (still)

10/2010 More bulletins reported to Chevy 01-06-01-011F and 07-06-01-007c

11/2010 Oil light came on dash Chevy replaced pistons and Rings Replaced outer CV boot Brake work done

1/2011 Oil consumption low Rear defrost wire broken (Chevy repaired again)

4/2011 No oil on dip stick

8/2011 Oil Consumption Chevy replaced left valve cover with new design baffle

11/2011 Low oil light came on again

PS we really would like to buy a new Camaro but with this trouble on the suburban not sure I still can count on Chevy.

- rlucase, Kensington, MD, US

problem #110

Apr 152009

Suburban 5.3L V8

  • Automatic transmission
  • 40,000 miles

thought i would let you Suburban owners know that the Yukon has the exact same problem. I've been living with this for the last 3 years. adding oil between changes is not acceptable. I have a 95 Suburban with over 200K miles and it doesn't use hardly any oil between changes even today! I changed the oil after Christmas and my wife drove 1,000 miles round trip and i had to add another quart today. I've always changed my own oil and do so around the 25% remaining point. I've refrained from going to the dealer because I know they'll only make things worse or create another entirely different problem altogether. However my 5 years is about to come up and I'm up to 75K miles so I probably need to take it in and at least get a record started.

- kracer1, Niceville, FL, US

problem #109

Feb 062009

Suburban

  • Automatic transmission
  • 35,000 miles

Just want to say...I am on board with everyone else. We bought our suburban used in 2008, was already angry that our warranty had expired and the dealership made no note of it for us to get an extended warranty. Around 35,000 miles we noticed that after about 2,000 miles the oil light would come on stating that the engine oil was low. We took it into the dealership where they told us they would look for a leak. They did dye test and so forth and found nothing wrong. It continued to lose oil...we kept calling asking them to check...look to see if it was covered under the drive train warranty; again there is nothing wrong. As we have had it for a little longer now, we are at 71,000 miles the truck is now burning more oil. Called again and spoke with a man who, in a very long conversation, from the dealership told us this was normal. We add about 2 quarts of oil every 2500 miles now as it is getting progressively worse. We are now at the point where the drive train warranty might be out and are still told there is nothing wrong and this is normal!

- C. V., Carpentersville, IL, US

problem #108

Feb 092010

Suburban LTZ

  • Automatic transmission
  • 83,000 miles

GM needs to fix this, we have been in over a dozen times and are getting no where. Class Action time. Replace the truck, the engine, whatever.

- Jeff L., Mustang, OK, US

problem #107

Jan 012008

Suburban LTZ 5.3L

  • Automatic transmission
  • 75,000 miles

Trucks been in More than 10 times there replacing pistons now. Thats awesome just hope i can blow it up in a couple days only problem is that thers so many safety sensors that turn it off. Who the hell wants new pistons the cylinders, want the ones it came with. I can tell you what there gonna say next. the rings need to seat better once you drive a few thousand miles thats why its leaking oil. then we do another oil test and by the end of that we should be around 120,000 And we all know what that means.

- Brian H., Roseville, MI, US

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