my heater Is blowing out cold air

Asked by Dec 24, 2015 at 02:15 PM about the 1992 Chevrolet Caprice Classic Sedan RWD

Question type: Maintenance & Repair

why is my heater not blowing out hot air?

2 Answers

31,595

if its low on water its one thing...check the heater controll vale and vacuum lines...

1 people found this helpful.
80,205

As Kelly said, check your coolant level first. It may be low. The thermostat may be stuck open. Does the needle on the temperature gauge on the dash go up to the 1/4 mark while driving? It should. If not, replace the thermostat with a 195°F thermostat. Your heater core may be clogged. Or lastly, the cable, under the dash, that operates the temperature door may be disconnected or broken. HTH. -Jim

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