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:
3,166 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 suspension problems

suspension problem

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2007 Chevrolet Suburban Owner Comments

problem #2

Mar 112007

Suburban 4WD 8-cyl

  • Automatic transmission
  • 950 miles


Stability light and traction control light on saying need serviced, check engine light on, transmission slips from 1st into 2nd, and vehicle makes noise making turns. Vehicle taken in for service but mechanic having trouble with codes. Vehicle is 07 Suburban with 961 miles.

- Reynoldsburg, OH, USA

problem #1

Nov 182006

Suburban 4WD

  • Automatic transmission
  • 5,382 miles
: the contact stated while driving 20 mph, the check engine and the traction control light illuminated constantly. The engine then lost the majority of power and would not accelerate. The vehicle was moved to the side of the road, and was shut off. The vehicle was restarted after 10 minutes and driven to a residence. The vehicle was taken to a service dealer, who was unable to determine the problem. The manufacturer was also notified.

- Sequim, WA, USA

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