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Q: Overheating on 2006 Chevrolet Monte Carlo

Can anyone tell me why all of a sudden my 2006 Chevy Monte Carlo is overheating. I replaced the thermostat and it is still overheating occasionally. The light will come on telling me engine is overheating and to turn the engine off just out of the blue. What else could it be?
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there could be a leak from low coolant level or the radiator could be clogged. have a shop check it out before you cause internal damage from overheating.

i have an o3, is it a 3.4 engine? mine started overheatg and before i knew it started the white stinky smoke out of exhaust and here we sat with blown head gaskets which monte carlos are known for every 30 to 35,000 miles...nice. expensive job!!! good luck. i will never purchase another monte. also known to leak water into the car on passwenger side of car thru the firewall...also experienced this twice now!!! hopefully by 06 yrs they have fixed these known problems in montes!!!!
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