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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.

7.8

pretty bad
Typical Repair Cost:
$100
Average Mileage:
34,700 miles
Total Complaints:
8 complaints

Most Common Solutions:

  1. not sure (5 reports)
  2. no it keeps happening!!!!!! (2 reports)
  3. take to dealer to fix/replace (1 reports)
2007 Chevrolet Suburban windows / windshield problems

windows / windshield problem

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2007 Chevrolet Suburban Owner Comments

problem #8

Feb 012014

Suburban LS 5.3L V8

  • Automatic transmission
  • 140,000 miles

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

Have had to have soldered back on twice. Coil just came disconnected with slight bump.

- James S., Saratoga, WY, US

problem #7

Jan 022012

Suburban

  • Automatic transmission
  • 70,000 miles

I have asked several glass places about fixing it and they said that they have had no success. It falls right back off after a short period of time. Their only solution is replacing the back window and defroster.

- Cindy B., Castle Hayne, NC, US

problem #6

Dec 022009

Suburban Z71 V8

  • Automatic transmission
  • 32,500 miles

Rear window defogger coil... fell off again!!!!!!!!!!! I need that to work, esp this time of year! What a pain in the butt to have to go to the dealership again. I love this truck but this petty stuff is a pain!!

- kjc1992, Richmond, VA, US

problem #5

Aug 202007

Suburban Z71 V8

  • Automatic transmission
  • 4,000 miles

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

rear window defogger coil... fell off third time. this time they replaced the glass AGAIN.

- kjc1992, Richmond, VA, US

problem #4

Jun 102007

Suburban Z71 V8

  • Automatic transmission
  • 4,000 miles

2nd time rear window defogger coil fell off. I don't even open that glass separate from the hatch but once in a blue moon. first time they replaced the whole glass. this time they sodered it. it lasted 6 weeks.

- kjc1992, Richmond, VA, US

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problem #3

Apr 052007

Suburban Z71 V8

  • Automatic transmission
  • 3,000 miles

rear window defogger coil fell off... (total of 4 times counting today!)

- kjc1992, Richmond, VA, US

problem #2

Jan 062009

Suburban LT 5.3L V8

  • Automatic transmission
  • 14,000 miles

the rear defroster coil fell off all of a sudden in the night i don't know how or why?, but really annoying in humid conditions

Update from Jul 13, 2011: the rear defroster coil fell off and dealer would not fix it,

- bschoolchris, Chicago, IL, US

problem #1

Feb 012008

Suburban LT Flex V6-V8

  • Automatic transmission
  • 10,000 miles

I have had this rear window defroster coil fall off the window three separate times. I just took the suburban in this morning to have the FORTH rear window put in. Replacing the entire rear window is I am told the only way for them to fix this. The service manager actually accused me or (my family) of pulling it loose, this is absolutely NOT the case. It just falls off with out explanation. We rarely use the back window, we always use the door (hatch) when putting things in or taking things out of the cargo area. I had this same rear defrost set up on my Ford Expedition which I had for 8 years and NEVER had one problem with it. This tells me that there has to be some type of problem with these and it is not just my vehicle.

Update from Apr 27, 2009: Just wanted to give anybody reading this an update on my rear defroster coil problem. This has happen a total of 7 yes SEVEN times in the two years I have my suburban. One time they actually saudered they coil back on the window and the other six times they have replaced the entire window. The first time the service dept manager told me that one other suburban has been in for this same problem. The next time he told me I was the only one he knew of that this was happening to, which contridicted what he told me in the first place. This last time which was just a few weeks ago he told me that it happening to more suburbans but never more than once to each of them and they still can't figure out why it is happening to me so often and I told him the same thing have told him many times before "I don't know why either but, it really is a major pain in the A--" I have to take time off of work to take it down there in the morning and then time off from work to pick it up later that day. I am NOT happy with this situation at all. Anyone out there having this same problem more than once or twice or like in my situation 7-SEVEN times????

- Angie S., Eureka, CA, US

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