Engine Running Hot


pretty bad
Typical Repair Cost:
No data
Average Mileage:
102,867 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
2004 Pontiac Grand Prix cooling system problems

cooling system problem

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2004 Pontiac Grand Prix Owner Comments

problem #2

Oct 182010

Grand Prix 6cyl

  • Automatic transmission
  • 144,434 miles


I bought this car in June, drove great, went on road trip and as soon as I got back started messing up! ac/light coming on to cut ac off, gas cap light coming on. Engine over heating. I purchased a six thousand mile warranty when I purchased the car it is over 400 miles past the six thousand limit. After the car over heated it had the smell like stop leak had been added to it at some point, that yucky stench hit my nose. Is there a recall on 2004 Grand Prix models for this problem and do you know anything about the Lemon Laws here in South Carolina. I am a single mom who feels I have been taken for granted. I don't know what to do can you help me by giving me some very sound advice, I'm not afraid to bite their ass if that's what it takes to get this fixed. I paid 2000 down on this car and I will not sit back and watch my money be thrown right out the window. Please contact me asap lcarter516@gamil.com

- , Summerville, SC, US

problem #1

Mar 012008

Grand Prix GTP 3.8L V6

  • Automatic transmission
  • 61,300 miles

The engine starting running hot while I was in a drive through line. Once I got it back on the road the temperature came back down but I thought I should have it checked out. So I took it to a place that I trust and the first thing they said was that there was Sludge in the radiator. They indicated that they have seen this issue with several cars with the Dex-Cool in the car. After hearing that and knowing the car was still under warranty I took it to the dealership. They said that the sludge was cause by a bad intake gasket. They replaced that and the thermostat as part of the repair. When I asked them if they flushed the radiator and coolant system to get all the sludge out of it they said "NO". The dealership indicated to me that it won't bother anything. That they could flush it out but it wouldn't be covered under the warranty and they would charge me $130 to flush it out. I personally don't see how any amount of sludge in my coolant system can be good and then when searching further on the problem on the internet it appears to be a big issue for a lot of GM vehicles.

- , Lenexa, KS, USA

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