Questions & Answers for: GMC Sierra freon coming vents

I need to add some freon in a 1995 GMC half ton I was told that it usually takes a can of R134 every summer. The line going to the bottom of the filter or dryer (on the firewall) is cold and the ...

...a/c clutch and got no voltage. Has the computer shut down the a/c for some reason? if it is low on freon the compressor will have 0 volts becuase the low pressure switch on the evaporator isn't ...

...vents You are low on freon. You may have a small leak in system. Go to auto parts store and by a refill with seal in it. It comes with gage attacked that tells you when system is full. This should ...

...vents not overheating though and check engine light came on Hi, So your AC isn't blowing cold? With the engine running and the AC on, see if the compressor clutch is engaged. If not, you might have ...

...the issue. Thermostat no, I would have some gauges hook up on your a/c system, could be low on freon or a restriction causing to a/c compr. to turn off, low or high freon pressure will cause

...coming out of my heater floor vents but i am not sure if it is that or Freon? Any idea what could be wrong? If it is cool clear water and does not smell like coolant then it is the drain tube plugged ...

I cannot get any air, hot or cold, fresh or a/c, to come thru the vents in the dash. Floor vents and defrost are the only source of air flow. What now ??? Sounds like the lil motor on the bottom side ...

...side vent blow only hot air and the passenger vent blow the cold ac air Usually a sign of low freon or a blend door problem.  If the system is full of freon, I would check the blend doors ...

...freon When the compressor kicks on, is the air from the vents blowing cold? If the air isn't blowing cold, then your problem could be that you may have water in the system. I had a '93 Chevy ...

...freon. If your blower only works sometimes might be that the compressor has issues. If the blower motor only works sometimes it is not related to refrigerant charge. The blower motor may not be ...