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A/c r134a amount

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  • May 17, 2016 at 5:49 pm #858477
    ChristopherChristopher
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      I have a ’90 ford ranger 4L V6. The A/c system was converted to 134a a few years back, but how do I know how much refrigerant it should take. The sticker is still for r12. Is it the same amount? Any insight it much appreciated.

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    • May 17, 2016 at 7:37 pm #858483
      jasonjason
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        the best way to judge this retro fit is buy temp hook up your high and low side at 80% the low should be on 40-50 and the high on 175-210 with it running and the a/c on

        May 18, 2016 at 4:01 am #858516
        college mancollege man
        Moderator

          charge 85-90% of the capacity with 134a

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