A/ C is not working on 1984 Chevy El Camino. Air blows out defrost vents. Is there a fuse I can check? What else do I need to check?

Asked by Jul 12, 2014 at 12:52 PM about the 1984 Chevrolet El Camino

Question type: Maintenance & Repair

Of course, there is no manual in the vehicle.

2 Answers

90,815

Vacuum supply to heater controls, vacuum control switching valve,vacuum servo motors.

2 out of 2 people think this is helpful.
64,995

There's a vacuum hose coming from the intake manifold to the climate control panel on the dash. Sounds like it's disconnected. When the system loses vacuum it defaults to defrost for safety reasons. HTH. -Jim

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