ANTIFREEZE IS OVER BOILING, I DONT KNOW WHERE ITS GOING?

  • Tiny
  • c.eddy
  • 1999 Pontiac Grand Am
  • 300,000 miles

I have a 99 pontiac grand am with a 3400 v-6 engine? I think and it overheats and boils all of my antifreeze. And i'm think about replacing the water pump and thermostat, maybe the heater core, the hoses are good/replaced, but I am also going to replace the radiator. I do pour in a gallons of premixed dexcool antifreeze almost everyday now. I can't find where the leak is going when I just let it run i'm stumped what could it be!

Saturday, April 14th, 2012 AT 2:11 PM

3 Answers

  • Tiny
  • Wrenchtech
  • Expert
  • 19,541 posts

Have the cooling system pressure tested. You may have a leak that started the problem but at this point you have probably blown a head gasket from overheating it.

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Saturday, April 14th, 2012 AT 2:18 PM
  • Tiny
  • c.eddy
  • Member

And if that's not the problem, what is another suggestion?

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Saturday, April 14th, 2012 AT 2:48 PM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,541 posts

There is no other option. Find your leak.

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Saturday, April 14th, 2012 AT 3:05 PM

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