No power to air conditioner compressor

1997 MERCURY MARQUIS
180,000 MILES • V8 • 2WD • AUTOMATIC
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SCOTT CORNELIUS
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  • 3 POSTS
I just replaced air conditioner compressor and dryer and most other items in air conditioner system. It does not seem to be getting power to the new compressor. Where should we look?
Jun 22, 2016 at 3:36 PM
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CJ MEDEVAC
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Is it charged with R-134?. I would use a test light a the new compression clutch to see if has power you could have a defective compressor.
Jun 22, 2016 at 3:38 PM
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SCOTT CORNELIUS
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Yes.
Jun 22, 2016 at 3:40 PM
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CJ MEDEVAC
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Was guessing that maybe the low pressure switch had it offline due to not enough pressure.

(Do not overfill it!)

I am going to look for a wiring diagram and the amount of gas required.

Back soon as I can!

The Medic
Jun 22, 2016 at 3:47 PM
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CJ MEDEVAC
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GS or LS?

Auto or Manual air conditioner?

Need this information to find the right stuff.



The Medic
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Jun 22, 2016 at 4:05 PM
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SCOTT CORNELIUS
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Yes it does have auto air conditioner.
Jun 22, 2016 at 4:08 PM
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CJ MEDEVAC
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Okay,

4 diagrams

All "overlap" (Prodemand will not allow me to copy many of their diagrams-as they are a pay repair manual).

These screenshots will stack first is top third is bottom.

At minimum, I want to hook you up with information you might use to find the problem.

Locations are beside the components/ fuses (with numbers)/ relays/ etc.

Let me know if this helps.

The Medic
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Jun 22, 2016 at 4:46 PM