Question about 1989 GMC C1500

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AC not working. What to check 1st ? Any fuses involved ?

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Check fuses,low presure switch ,also see if it has freon in it...

Posted on Aug 24, 2010


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2.2l. Why do I have nothing blowing out of the vents?

Simple things 1st
Check your heater/ac fuse under the drivers side dash. Your owners manual will show you which one. No manual. look foe blow 20, 25, 30 amp fuse and replace.
Hope this helps Mike

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I have a 2001 merury villager estate and the heater fan isn't working. Heat works fine but the fan won't come on. What do i need to do to fix it?

Charlie, 1st thing is to check your fuses. I will post some links to help you see and solve problem. May not be your exact model but steps are basically the same.
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2011 nisian verda ac wont run

1st is the proper freeon installed as well the vacuum done properly sometimes replacing parts cause dirt to go through the lines and plug up the system so if all was done properly and the ac was working before ! then the ac clutch is not responding so check all fuses in box easy to do then when the ac engaged check the connection at ac compressor to see if its getting power but you have to be sure that the ac system is charged properly if not it wont work

May 06, 2014 | Cars & Trucks

1 Answer

Ac will not blow out vents

no year, no car stated, IMPOSSIBLE to answer this..... ever.
if fan blowing ?
if yes, check all fuses first
if fuses good.
then is compressor clutch energized, or dead. 1st check !!
post back and we then work the reasons. (more tests)
or go to
and read the HVAC section. it too will ask model of car and year.

Dec 09, 2013 | Suzuki Cars & Trucks

1 Answer

Turn on AC it doesn't work nor the windows or radio etc. turn it off and all is normal. Can't use the AC..??

This seems to be a wiring fault, chk fuses 1st for broken ciruit, then see if any wiring not attached around the AC. Chk out yr earthing wirings particuarly in the cabin area.

Aug 04, 2012 | 2002 Chrysler Town & Country

1 Answer

Ac fuse location number for 2008 crown victoria

Hello! There are many fuses involved...Since I do not know if your vehicle is equipped with automatic temperature control or manual, whether the compressor clutch pulls or if the system has the correct amount of R134A; I'll give you a list of fuses involved....The Battery Junction Box is under the hood and the Central Junction Box is inside the vehicle....In the BJB check fuses # 11, 21, 101 and 102....In the CJB check fuses #8 and 15...If all the fuses are good buy a bottle of R134A with a gauge attached and check the level of refrigerant in the system...If the system is full, fuses are OK, I would then suspect a faulty component and would troubleshoot from that point....


Sep 01, 2011 | 2008 Ford Crown Victoria

1 Answer

Where is fuse/circuit breaker for ac/defrost/heat fan -- fan does not come on at all - 1997 ford escort wagon

YOU HAVE SEVERAL PLACES one fuse box under dash driver side you also have some under hood relays may have 2 check fuses under dash 1st if not those check more under hood drivers side look for black box on driver front fenderwell

Aug 13, 2010 | 1997 Ford Escort

1 Answer

Heat/AC fans do no blow at all

Check your fuses first. If they are all okay leave a comment and I'll try to walk you thru the next few steps to find the problem and repair it.

Dec 16, 2009 | 2004 Kia Optima

1 Answer

Ac not working

1st you must check for correct refrigerant levels in ac system, must be done with a/c guages, you have a pressure switch that senses correct pressure in a/c system if you are low in refrigerant the a/c will not come on. if you have good pressures high side 70-95 low side 70-95 depends on ouitside air temperature, with the engine off then look at the switch in the high pressure line, jeep also has a fuse in the fuse box under the hood and a a/c relay please check those too. I hope this helps. (red is high side hose- small fitting plug , blue is low side- larger fitting If ac is working and compressor is on good pressure ranges from high side the red hose 160 to 230 depending on temperature outside; low side blue hose 27-46 low side depending on outside temperature, Wear glasses to protect your eyes. I hope this helps good luck

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1 Answer

AC - no powere at the switch but no issue with fuses

go to pep boys and get a book , i think they are 12.00 , it will show you alot of things about that car , thats the 1st thing i do , when i buy a different car , do you have a service manual with the car . it will show you the fuses

Jun 28, 2009 | 1998 Ford Mustang

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