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CarComplaints.com Notes: The 2006 Cobalt continued to carry the torch first lit by the 2005 model year. To be clear, that torch is burning bright with widespread power steering issues, electrical curiosities and a dangerous ignition switch defect which led to a massive recall by GM. This isn’t a great torch to carry.

The 2006 added it’s own special flare with gas leaks due to cracks in the “return portion of the modular reservoir assembly.” A recall of 2006 Cobalts was issued to fix the problem, but only to vehicles sold in or current registered in Arizona and Nevada, leaving other owners to pay for repairs themselves.

Between this car stalling while driving, giving owners fits with power steering failure and having it be a potential tinderbox because of gas leaks, we felt we had no other option than to award it our “Avoid Like the Plague” badge.


pretty bad
Typical Repair Cost:
No data
Average Mileage:
53,833 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. not sure (3 reports)
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2006 Chevrolet Cobalt engine problems

engine problem

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2006 Chevrolet Cobalt Owner Comments

problem #3

Sep 212013

Cobalt LX 4 cyl

  • Automatic transmission
  • 100,000 miles


My car suddenly stalled on a major highway just out of the blue. Fortunately I was travelling at a fast enough speed that I had enough propulsion to pull over two lanes and get onto the side of the road and restart it. Not sure what caused it. It started right back up again and has run since. The service engine soon light came on a few days later and though I have had it checked out, they have no idea of the cause. Can't get the service engine light to go off.

- , Madoc, Ontario, canada

problem #2

Dec 162009


  • Automatic transmission
  • 40,000 miles

This has happened now for the third winter in a row.Start car in morning for work and this "reduced engine power" shows up in the dash. No matter have much you let it warm up, you cannot get any power out of the car.If you are lucky you will get 40km out of it. I am sick of this. No one seems to know why this is happening. I hate it.

- , Ajax, ON, Canada

problem #1

Mar 122007

Cobalt SS S/C 2.0L 4 cyl Supercharge

  • Manual transmission
  • 21,498 miles

Left restaurant after taking family to dinner on acceleration supercharger went biserk, loud noise, engine died. Second time. Started after several minutes/attempts.

- , Shelby Township, MI, USA

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