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don whitmire Posted on Apr 20, 2013
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1991 chevy 1500 ac wiring diagram

Compressor doesnot come on

1 Answer

Stephen

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  • Cars & Trucks Master 21,873 Answers
  • Posted on Apr 21, 2013
 Stephen
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Have you checked freon pressure ?
There is a clutch relay and the low pressure switch in the circuit.
There is also a master controller in the circuit that handles the compressor and blower along with the blend doors.
The wiring diagram I have is too large to post here.

5 Related Answers

Anonymous

  • 2559 Answers
  • Posted on May 28, 2009

SOURCE: no power to the ac compressor

Have you checked the refrigerant level,If it is low,No power will be supplied to the compressor.

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Ned C Cook

  • 3433 Answers
  • Posted on Jun 27, 2009

SOURCE: I need a wiring diagram for the ac to find the high and low pressure valve and the compressor switch .

No you don't. The hi/lo awitch is on the tubing at the drier.

motor1258

Mike Butler

  • 6674 Answers
  • Posted on Aug 26, 2009

SOURCE: I have a 1991 Chevy S10 2.5 L4, do you have a

firing order 1342, distributor, clockwise rotation.966cbd7.jpg

Testimonial: "you were a life saver, this is just what I needed thanks"

Anonymous

  • 144 Answers
  • Posted on Oct 02, 2009

SOURCE: Ac belt diagram 2001 5.3 chevy 1500

  1. Use your built diagram
    This is itf49ce3e.gif

Anonymous

  • 448 Answers
  • Posted on Oct 20, 2009

SOURCE: ac compressor clutch relay 1991 honda accord

Difficult to describe, but I will give it a try.
Inside the driver's side fender, close to the front of the car, there is a bracket that is held in place by one bolt, but which has a short horizontal bar as part of it which has two large clips encircling two cylinderical devices which have wires clipped into them at the bottoms. The one closest to the front (radiator) is the compressor clutch relay. The other one is the condenser fan relay.
Hope this helps you find it.

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