Question about 1994 Chevrolet K1500

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Locate the a/c low pressure switch in my 1994chevy truck

I have a 1994 chevy 4x4 the air just quit and i would like to find the low pressure switch so i can jumper the plug just to see if i have no refig,

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  • Richard Scordino May 11, 2010

    I strongly recommend that you don't use any stuff with stop leak. It does not stop leaks and further if you need a technician to work on it, it will destroy the insides of the expensive machine used by the shop.
    These systems are more complex than the older ones and require more know-how to get them right. If you don't have the proper gauge set and evacuation pump, the results you get from a self charge may me minimal at best.


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  • Chevrolet Master
  • 3,854 Answers

You can jump the A/C clutch fan right on the compressor, be careful though. Lack of oil in the system will cost you a new A/C compressor.
Cheaper if you go to Auto Zone and by the recharge kit for your truck, I think it's like under $45.00 for the R134 canister with stop leak and the hose fitting. 
Good luck and hope this helps. Here is a link for re charging A/C http://www.cyberbright.com/autobin/air_conditioning.htm

Posted on May 24, 2009

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Posted on Jan 02, 2017

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