no heat or defrost
03-31-2004, 02:01 PM
#1
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Location: ware ma
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no heat or defrost
I have a 1978 corvette that I don't get warm air from the heater or the defrost. What would be the likely culprit? The fan runs but no warm air.
I don't want to jump right into a heater core change unless really necessary.
ugman
I don't want to jump right into a heater core change unless really necessary.
ugman
03-31-2004, 02:28 PM
#2
Melting Slicks
Re: no heat or defrost (ugman)
My 79 has a vacuum operated valve in the heater line. Maybe yours is not working or the vacuum line needs attention. :cheers:
[Modified by marshrat99, 2:28 PM 3/31/2004]
[Modified by marshrat99, 2:28 PM 3/31/2004]
