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definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
33,000 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.

2003 Chevrolet Monte Carlo cooling system problems

cooling system problem

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2003 Chevrolet Monte Carlo Owner Comments

problem #2

Oct 112014

Monte Carlo

  • 66,000 miles


The contact owns a 2003 Chevrolet Monte Carlo. The contact stated that the check engine warning light illuminated and the vehicle overheated. The contact added antifreeze into the radiator and discovered a leak. The vehicle was taken to a dealer, who diagnosed that the upper manifold needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 66,000.

- Toledo, OH, USA

problem #1

Nov 252008

Monte Carlo

  • 0 miles
I have had to repair/replace my cooling system twice, at my own expense. I own a 2003 Chevy Monte Carlo. Dexcool coolant which is the only coolant recommended for GM cars is all that I have used since I have owned the car (bought new). There is a recall on dexcool that is under litigation, however, my manifold is now cracked from the dexcool gunking my engine. Once again, I am stuck with the bill. GM is denying there is a problem, but there are other owners who have had this problem. Please help- I am out of money, and a car.

- Finksburg, MD, USA

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