Mechanics

WHAT CAUSES THE MOTOR TO SHUT OFF WHEN YOU TURN ON THE AIR CONDITIONER, HEATER OR DEFROST?

1997 Chevrolet Astro

This afternoon I started the van and it was running fine. I turned on the defrost and it made a squeeling noise and as I was driving the engine shut off. Turned the defrost off and the van will run fine, but as soon as you turn it back on it boggs the motor down.
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Re08
November 2, 2011.



The ac compressor may be locking up as it comes on with the defroster and may be seizing. Have it checked to verify.

Roy