• Tiny
  • x6Metal6mosher6x
  • 1997 Pontiac Sunfire

Engine Cooling problem
1997 Pontiac Sunfire 4 cyl Front Wheel Drive Manual 195000 miles

Hello I have a 1997 Pontiac Sunfire, and lately its been overheating, the check engine lights comes on. And I had it checked and it says it needs an O2 Sensor. Now it overheats sometimes. I did have some problems with the coolant. Sometimes it would drain but it doesnt have any leaks. And then I put some coolant in it and that seemed to last longer but even today I was driving and it overheated the first 10 minutes I drove it and then after a little while it went back down to normal temperature what could this be? Possibly? Would the O2 Sensor be related?

Friday, April 17th, 2009 AT 9:10 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Try replacing the thermostat don't work come on back and we'll get into it deeper.

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Saturday, April 18th, 2009 AT 5:05 AM

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