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No power to air conditioner compressor

Tiny
SCOTT CORNELIUS
  • MEMBER
  • 1997 MERCURY MARQUIS
  • V8
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
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?
Wednesday, June 22nd, 2016 AT 3:36 PM

6 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
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.
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Wednesday, June 22nd, 2016 AT 3:38 PM
Tiny
SCOTT CORNELIUS
  • MEMBER
  • 3 POSTS
Yes.
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Wednesday, June 22nd, 2016 AT 3:40 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
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
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Wednesday, June 22nd, 2016 AT 3:47 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
GS or LS?

Auto or Manual air conditioner?

Need this information to find the right stuff.

The Medic
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Wednesday, June 22nd, 2016 AT 4:05 PM
Tiny
SCOTT CORNELIUS
  • MEMBER
  • 3 POSTS
Yes it does have auto air conditioner.
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Wednesday, June 22nd, 2016 AT 4:08 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
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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Wednesday, June 22nd, 2016 AT 4:46 PM

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