A/C not working after new parts.

Discussion in 'Interior' started by Merc1973, Jul 22, 2018.

  1. Merc1973

    Merc1973 Full Access Member

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    Installed a new Denso AC condenser since it was visibly leaking, new NAPA orifice tube and line, new 4-seasons accumulator, new rubber seals soaked in PAG46 and replaced appropriate PAG46 oil in each part today.

    Sucked down to 30 psi for 45 minutes, held. Put in 3.5 cans of r134a idling at 1500 rpm, compressor was sucking it in nicely. But the low side numbers stayed at 45-55, high side was 180-200. Then all of a sudden compressor just cut out, will not engage...

    WTF???? I feel defeated. Before i noticed the leak, A/C has always been freezing cold... Anyone got an idea?
     
  2. Merc1973

    Merc1973 Full Access Member

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    Update, after a beer to relax. I went out there, hooked up the gauges, the compressor runs, but But both are reading as if it low on freon. I put in another 1/2-3/4 can. Numbers look good, its cycling on and off, vent temp is reasonable but not like before. :mad:
     
  3. Merc1973

    Merc1973 Full Access Member

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    Go out again, numbers look low, must be a leak.
     
  4. SnowDrifter

    SnowDrifter Full Access Member

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    A point of note: Vacuum is not fool proof for detecting leaks. It pulls parts together, whereas under operation, parts are pushed apart

    Most oils have a UV dye in them any more. If that was the case with yours, poke at it with a blacklight. Will be fairly obvious
     

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