1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

AC question - adding PAG oil

Discussion in '6.9L IH & 7.3L IDI Diesels' started by renjaminfrankln, Nov 27, 2020.

  1. renjaminfrankln

    renjaminfrankln Full Access Member

    Posts:
    522
    Likes Received:
    270
    Joined:
    Aug 27, 2018
    Location:
    Raleigh NC
    When I bought the truck, the AC clutch was out and the system had slowly leaked down to zero psi.

    I replaced the compressor, a line, vacuumed it down, charged it up. Worked great for around a year. I believe the compressor had oil in it already.

    Now I am having to replace the condenser due to a leak, as well as the drier (easy to get to so i'm doing it).

    I have no idea if I should add additional oil before vacuuming it down and firing it back up. My guess is that a fair amount of oil was lost when removing the condenser, but I don't know how much.

    ???
     
  2. Reggie f250

    Reggie f250 Registered User

    Posts:
    45
    Likes Received:
    21
    Joined:
    Oct 18, 2018
    Location:
    Bartlett il
    I would add about 3 oz of oil and split it between the replaced parts.
     
  3. YJMike92

    YJMike92 Full Access Member

    Posts:
    498
    Likes Received:
    258
    Joined:
    Aug 10, 2018
    Location:
    NW Arkansas
    That sounds about right. There are specifications in the service information. You definitely want to add some.
     

Share This Page