2003 Pontiac Montana compressor

2003 PONTIAC MONTANA
160,000 MILES • 3.4L • 6 CYL • 2WD • AUTOMATIC
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SALVADOR7631
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  • 1 POST
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
Jul 7, 2015 at 9:57 PM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 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. https://www.2carpros.com/images/external/185272065.jpg.gif
Jul 8, 2015 at 2:19 AM
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