Question about 2001 Chevrolet Blazer

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Antifreeze smell and smoke coming out of vents

2001 blazer did not overheat, I did not have the heat on, windows started to fog on the inside and the cab started to smell like antifreeze. I waited till the next morning and looked at the coolant level in the radiator. It was low, filled it and the overflow, started the truck, no leaks that I could see. Turned the defroster on and smoke and the antifreeze smell came out of the vents to fill the cab. Still no fluid leaking outside or inside the cab. We are thinking it is the heater core but there is no visible fluid leaking. I don't know what to fix, help???

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  • Anonymous Mar 18, 2014

    COolant

  • Anonymous Mar 18, 2014

    do not see antifreeze leaking when car is parked, but radiator level never stays full

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You have a coolant leak most likely in the heater core. Try disconnecting your heater hoses and coupling them together, then running the engine to see if the leak goes away. If it does, I would have the heater core replaced.

Posted on Dec 28, 2008

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This is definitely a heater core issue, but I might also suggest one of the many over the counter cures first before replacing it, the heater core is not a very expensive part but quite a chore to replace.

Posted on Dec 28, 2008

  • David Johnson
    David Johnson Dec 28, 2008

    Another comment, Jaguar actually state in many of there manuals to allways run a product, called Bars Leak. For lubrication and to prevent leaks.

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