Print this page 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.


pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
3,502 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Chevrolet Suburban drivetrain problems

drivetrain problem

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2007 Chevrolet Suburban Owner Comments

problem #2

Aug 132007

Suburban 4WD 8-cyl

  • Automatic transmission
  • 0 miles


Intermittent service 4 wheel drive lamp on and code C0378.

- Reynoldsburg, OH, USA

problem #1

Feb 222007

Suburban 4WD 8-cyl Diesel

  • Automatic transmission
  • 7,005 miles
The contact owns a 2007 Chevrolet Suburban. The contact stated that the 4-wheel drive shift indicator reached temperatures in excess of 100 degrees and could cause a burn to the touch. The manufacturer and a Chevrolet dealer were aware, and stated that this was normal and there was nothing to repair. The 4-wheel drive indicator was always heated, and the car had a burning smell because of it and got worse while driving.

- Franktown, CO, USA

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