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  1. #1
    Join Date
    Nov 2001
    Posts
    1,874
    I need to know what to look for in automotive pressures for 134a.
    I'm going to be asked to charge an in-laws car today.

    I've done plenty of r-12, but not any 134a

    thanks guys,
    If you try to fail, and succeed.
    Which have you done ?



  2. #2
    Join Date
    Oct 2001
    Posts
    6,945

    Talking

    try over in http://www.aircondition.com a complete site on auto A/C tons of info and feedback.i would say your looking at that typical 40F on that suction guage with the 134........check it out there.
    "when in doubt...jump it out" http://www.youtube.com/watch?v=U1qEZHhJubY

  3. #3
    Join Date
    Jul 2002
    Posts
    962
    alot depends on the manufacturer of the auto. There are a few differant types out there. the G.M CCOT is the most common. the Ford FFOT is similar. There are a few others.

    Did you buy your new R134a gages yet?

  4. #4
    Join Date
    Nov 2001
    Posts
    1,874
    It's a ford truck,

    My brother in law is buying everything I'll need.
    The kit comes with 3 cans, fittings and gauges.
    If you try to fail, and succeed.
    Which have you done ?



  5. #5
    Join Date
    May 2005
    Location
    Mississippi
    Posts
    102
    Sounds like one of those conversion kits with the fittings to change out from 12 - 134A. If thats the case, the gauge will probalby just have a blue,greeen, and red section.the directions will give you the charge indicator to acheive for what its worth. I have see people wiht this type of stuff aorund but never put much faith in it..

    If htats the case, I would make sure i flushed out the system before. Never done a retrofit, but hey it may work just fine.

    regards

  6. #6
    Join Date
    Jul 2002
    Posts
    962
    This is why alot of people think r134a does not preform well. The retrofits are not done properely and you can not accureitly charge a system with those kits, with the toy gage.

  7. #7
    Join Date
    May 2005
    Location
    Mississippi
    Posts
    102
    Sorry for the previous post, my spelling and/or typing must have had a brain fart or something.

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