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How many wires attach to the ac compressor on a 1994 gmc sierra 2500?

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NONE/two wires(hot12volt and ground)go to your A/C compressor clutch to cycle it/but none directly to an automotive compressor

Posted on Jul 27, 2009

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2 Answers

Where is orifice tube on 1994 gmc 1500 p/u


It is located in the larger of the 2 AC hoses from the compressor or it is located on the can shaped object called the "accumulator canister"

Jun 03, 2016 | GMC Cars & Trucks

1 Answer

1999 GMC air cond. AC clutch wont engage. system is charged. relay, fuze,and low pressure switch are replaced.


ac compressor clutch coil open or short. wire cut or open to ac clutch.2 wires one is ground the other power, remove connector ac compressor then probe with test light between the two wire

Aug 05, 2013 | 2003 GMC Sierra 1500

1 Answer

Will not start but if i put alittle gas in carbator it will start till fuel is gone. fule pump? fuse? relay?how do i check? 1994 gmc 2500 350 motor


you should be able to hear the pump run inside the fuel tank. on the firewall there is a relay under the black cover on the passengers side, thats the fuel pump relay. the ORANGE wire should have 12V, The wire going to the pump is GRAY and should have power when cranking. . theres also a 20 amp fuse there, make sure its good. If the gray wire has power, most likely the pump is bad. At the pump there is a BLACK wire that attaches to the frame near the left rear wheel, thats the ground for the pump make sure its good and tight.

Aug 25, 2011 | 1994 GMC Sierra

1 Answer

"How to remove and replace a AC Clutch on a 1994 GMC Sierra 5.7?"


depending on witch compressor you have they all are very straight forward , just remove the screws that hold the out side plate to the electric clutch and find the screw that holds everything together in the center ,remove it and it should slide out with no problem. get a replacement and install it the reversed way

Aug 05, 2010 | 1994 GMC Sierra

1 Answer

Engine light code 44 1994 GMC Sierra Pickup HD 5.7l, 4wd.


look for a serious exhaust or intake leak. look for bad wires to the o2 sensor or map sensor. just for starters.

Jul 20, 2010 | 1994 GMC Sierra

1 Answer

Can some post the 1999 gmc sierra wiring diagram


you don't have enough pressure in your system. odds are you have a leak someplace and the factory installed a saftey switch to keep the ac from running when there is no pressure. This way you don't end up burning up your compressor.

Jun 28, 2009 | 1999 GMC Sierra

1 Answer

2004 gmc sierra 5.3. AC not working AC Compressor fuse blowing


UNPLUG THE A/C CONNETOR ON THE A/C COMMPRESOR. REPLACE THE FUSE AND TURN ON THE SWITCH. FUSE OK . REPLACE THE COMMPRESSOR AND THE RECIVER DRIER.

Apr 17, 2009 | 2004 GMC Sierra

1 Answer

2007 gmc sierra 2500 IAT sensor


Well, the IAT (Intake Air Temperature) sensor is located on the air intake duct between the filter and the throttle body (Assuming you have the 6L motor). The wires are easily visible at the plug that connects the sensor to the wiring harness. That's the easiest place to access them.

May 18, 2008 | 2004 GMC Sierra 2500

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