My '88 has no heat...need help


Asked by Jan 19, 2017 at 10:18 PM about the 1988 Chevrolet Corvette Coupe RWD

Question type: Maintenance & Repair

I got my whole AC system completely new with everything compressor, condenser, etc...very expensive job but blows ice cold... Now, I went to use the heat this winter and I now have no heat.. just cold air coming out when I have the heater on....   Any suggestions?  Do you think it's a stuck Blend door problem or heater core?   Hope someone has some advice... Thanks!

1 Answer


Could just be the hot water control valve is stuck, check the heater hoses under the hood and look for a little valve with a vacuum line attached to in one of the hoses, and see if the little lever will move, if not it's stuck and will need replacing, if it does then you have a vacuum supply problem to that valve, could be a selector malfunction.

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