Automotive AC Tech's- I need help!!

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    Automotive AC Tech's- I need help!!

    Sick of dealing with 'technicians' that have zero clue about troubleshooting AC and was hoping the vast knowledge of IBB techs might help out lol

    Spent more than I'd like to admit on my AC in a 2001 ram diesel.. new compressor, evaporator, truck radiator and AC recharge within the last 2 years. AC is great when moving and shortly after start up but slowly fades unless moving at highway speeds. At a stop I have about 3-5 mins before the AC fades rapidly and the truck temp increases, but won't (or hasn't yet) overheat.

    Any ideas????

    #2
    Clogged condenser for sure.

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      #3
      Fan clutch

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        #4
        Originally posted by crisbee1 View Post
        Fan clutch
        This... and don't buy a cheap one, they suck. Bite the bullet and get an OEM replacement. Buy once, cry once, and your A/C will work again.

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          #5
          Sounds like an airflow issue. I agree with above, check your fan clutch. It can be enough flow to keep engine cool but not enough airflow over condenser to have AC work properly.

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            #6
            Did you lose any of the shrouding around the fan or between the condenser and radiator?

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              #7
              Originally posted by crisbee1 View Post
              Fan clutch
              this

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                #8
                Did you flush the condenser real good after the compressor change? Did the compressor scatter? Black death? Pull a good vacuum? Air/moisture in the system will drop it's efficiency drastically.

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                  #9
                  Originally posted by BIG-O View Post
                  Did you flush the condenser real good after the compressor change? Did the compressor scatter? Black death? Pull a good vacuum? Air/moisture in the system will drop it's efficiency drastically.
                  I had a long standing local shop do the replacement but I should've mentioned that the condenser was changed when the compressor was replaced as said shop had highly recommended to replace it. This truck tows my shit south twice a year and I do not cheap out on it.

                  I'm going to replace the clutch fan this weekend with an OEM one. Thanks to the replies I googled some troubleshooting and it appears fucked. Not sure why AC tech near my work didn't catch on to that but I'm glad I declined his offer to 'dig deeper into the issue'

                  Thanks again for the replies 🍺

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