heat, defrost, AC control seems to be stuck. No matter which position is selected, air comes out of all outlets equally. I suspect it is either a vacuum problem or the switch is fried. I would say you
...gmc safari van upper vent I cannot get air to come out of the top vents on air conditioning or heating. Air comes out of defroster and bottom vents but not from the top. Can anyone help me? thalnks ...
gmc safari,no heat i changed the thermostat,still no heat,top rad hose gets warm,not hot.temp gauge gets up to about 150 degrees after running engine about 45 mins.drove about 10 miles and gauge doesn
Question about 1997 Safari
...gmc safari the rear heat and rear AC will blow out but it will not work ..... two different problems ! Rear heater problem: find under the hood where is hose for cooling liquid goes to front heating ...
...2000 Safari YOU HAVE A VACUUM LEAK AT A/C PLENUM. IT'S VACUUM CONTROLLED AND DEFAULT IS DEFROST, IF VACUUM LOSS IS EXPERIENCED THIS WILL HAPPEN. TRY TRACKING FOR A SMALL PLASTIC LINE THAT GOES INTO ...
...gmc 2004 safari blower is not working whenever i turn on the ac/heat it does not work in the front but the rear works fine. passenger side under dash. Your going to find two clear vacuum hoses have ...
...2000 gmc jimmy 4-wheel drive someone says it may be the heating core Sounds like a vacuum activated switch. Your engine vacuum is used to open and close little doors in your vents. If a hose is loose ...
...GMC Safari is stuck on defrost, the A/C compressor kicks on and off like it is supposed to, but no matter which setting I put the select switch on, still defrosting. Check your vacuum hoses for your ...
Question about 2000 Safari
...rear heater in a safari, how do i run the power, and hoses, if any, to and from the battery/heater? You could just Tee into the heater hoses in front and run a hot wire from the accessory side of the ...
...vacuum lines check out.ac runs cold not switching to heat Make sure the heater control valve is switching when dial is moved to heat. It is located under the evaporator box on the right side of the ...
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