It was working fine, all of the sudden when the switch is on with the A/C, it shut down the compressor and blows out the floor vents. If the blowe swith is turned off with the A/C button pressed on the compressor is on. The only vents that area working are the floor vents, does not matter which vent setting is selected. Thanks for any help.
I have a 99 GMC Sierra truck 4X4, when A/C is turned on blows out the bottom vents with no cold air, new comp?
It may be in the switch itself in the dash. Mine will start blowing hot air for no reason when the a/c is on. Have to turn the truck off and restart it to get cold air again.
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