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definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
35,333 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.

2006 Chevrolet Monte Carlo engine problems

engine problem

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2006 Chevrolet Monte Carlo Owner Comments

problem #3

Feb 012009

Monte Carlo

  • 40,000 miles


I noticed a smell of mold from the ac vents, I took the car to city Chevrolet in charlotte, nc. They replaced the ac condenser unit. This took care of the smell for the summer months. The smell has now returned and is getting worse by the day. The service agent said that GM was aware for the problem but was doing nothing to correct. I was also told this is a design flaw due to the vents in the condenser being too small not allowing the built up water to evaporate. This issue is starting to cause health problems such as bronchitis and sinus infections.

- Harrisburg, NC, USA

problem #2

Sep 242009

Monte Carlo

  • 63,000 miles
Internal radiator crack. This allowed the coolant and trans fluid to commingle thus causing the transmission to slip. It also had potential to damage many internal components. No external damage thus must be manufacture defect.

- Elgin, IL, USA

problem #1

Jun 012006

Monte Carlo 8-cyl

  • Automatic transmission
  • 3,000 miles
I have infrequent lifter noise. I have been told that this is piston slap. It's not piston slap. This problem has been reported twice. I got the same response. Piston noise. Symptoms: Cold start..winter-fall or summer...lifter noise..valves clatter...engine runs codes..after idling for a few minutes the valves pump up and the roughness and noise go's away... I also have the odor of burt transmission fluid (hair burning) when accelerating.. I also oil 1qt a month.

- Mesa, AZ, USA

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