• Tiny
  • imthewalruss
  • Chevrolet Blazer

I just bought a 2000 Chevy S-10 Blazer 4.3L 2WD. The a/c blows really cold but it emits an awful odor and smoke or fog. When I turn the thermostat to a warmer setting, the smoke gets worse. I have flushed the radiator and it does not overheat. It smells a lot like antifreeze. I'm thinking it might be the heater core, but there's no visible leak inside the cab. The smoke comes out through the a/c vents. I don't claim to be good at working on vehicles, but if I can repair this myself and save the cost of having it repaired I will. However, looking in a repair manual at replacing a heater core (if that's even the problem) it seems like quite a task.

Monday, June 18th, 2007 AT 2:40 PM

1 Answer

  • Tiny
  • Expert
  • 2,768 posts

Check around the hose connections on the firewall first. See if there is any kind of leak. If none found then the heater core is leaking. It is a job to do, it tkes time but one could do it. Check the hoses first. One could be letting it leak go to the inside.

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Monday, June 18th, 2007 AT 9:48 PM

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