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I've looked around but havent been able to find an answer.
I just got a 1984 vette, there are a few things needing to be fixed, but its sound. The heater worked great for the test drive and the ride home. I know, it was freezing outside and nice and toasty in the car.
Since then its hasnt blown hot air. I am at a loss. Rechecked the fluids, they are fine, no smell in the car when running. You can tell the vent opens and shuts but no hot air.
Anyone have any suggestions or should I start looking for a shop?
Theres a heater control valve that opens & closes, its powered by vacuum. Make sure its working, might be a broken vacuum hose. Remove the air cleaner & check for bad hoses.