Question about 2001 Chevrolet S-10

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1999 chevy s-10 with no heat

I have a 1999 chevy s-10 with no heat. I have changed the thermostat, flushed the system and put new anti freeze in. Still I have no heat.

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  • Anonymous Dec 21, 2008

    i have the same problem. i've had the heater core flushed out and a new thermostat.... the heat came back after the heater core was flushed out, however 2 weeks later, it magically clogged again, going to flush the whole cooling system and change the coolant. hopefully this should take care of the problem

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You most likely have a clog in the heater core. Did you hear a sound like running water under the dash on the passenger side at one time? If so, it's almost certainly a clogged heater core. The problem is that the orange antifreeze clots. It should be changed more often than recommended.

Posted on Dec 14, 2008

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