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2003 Pontiac Montana compressor

Tiny
SALVADOR7631
  • MEMBER
  • 2003 PONTIAC MONTANA
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
I installed new air conditioning system in my car I bought a kit in auto zone compressor dryer expansion valve etc and the compressor sometimes engage and sometimes not I purged the system oil flush charge refrigerant pressure is on 42 it runs and suddenly quits
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Tuesday, July 7th, 2015 AT 9:57 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You're going to need an enhanced scan tool to diagnose this. It has a 3 wire pressure switch that delivers a specific pressure to the computer and the computer responds accordingly. You would need to monitor that pressure to see f there is any issue with the pressure reading.

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Wednesday, July 8th, 2015 AT 2:19 AM

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