1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

AC high pressure Schrader valve leak

Discussion in '2nd Gen. Tacomas (2005-2015)' started by JDubs83, Aug 22, 2023.

  1. Aug 22, 2023 at 11:42 AM
    #1
    JDubs83

    JDubs83 [OP] Member

    Joined:
    Sep 6, 2020
    Member:
    #339974
    Messages:
    5
    Gender:
    Male
    Vehicle:
    2012 Dbl cab SR5
    Need help. I have replaced all components for my ac except for the evaporator and high pressure line and switch last year. Worked for a year and now I have a leak at the high pressure Schrader valve. I have replaced the valve four times now and it continues to leak.
     
  2. Aug 22, 2023 at 12:08 PM
    #2
    gilligoon

    gilligoon Well-Known Member

    Joined:
    Aug 22, 2017
    Member:
    #227638
    Messages:
    804
    First Name:
    Goon
    Watoosa Ridge, GA
    Vehicle:
    2017 Quicksand TRD OR DCSB
    Bilstein, ICON, Mobtown, Southern Style, Warn, SOS, Nitto, ARE, Northstar
    How about the expansion valve at the firewall? If the compressor went bad, that is probably ruined as well. Good place to check for debris or sludge that indicates a compressor failure, and debris can ruin all the valves. And go to a tech that can do a refrigerant capture and before checking the expansion valve. Not to mention a really thorough gauge and vent temp calibration.
     
  3. Aug 22, 2023 at 12:42 PM
    #3
    JustAddMud

    JustAddMud Professional Grease Monkey

    Joined:
    Aug 20, 2012
    Member:
    #85169
    Messages:
    1,685
    Gender:
    Male
    First Name:
    J
    Summerville SC
    Vehicle:
    12 4x4 TRD OR
    Yes
    There is a tool that is a captive system that will allow you to replace your core without needing to evacuate the entire system. This looks like the tool I'm talking about, but you might be able to rent it from your local auto parts store. It should allow you to pull the valve core and seal the system enabling you to replace with a new core. Use a little dab of PAG oil on the rubber before installing the new core. It might help you fix your leak. Valve cores are cheaper than a complete flush.

    Edit: I see that you replaced it 4x already, are you sure you used the correct valve core?

    -J
     
    gilligoon likes this.
  4. Aug 22, 2023 at 12:47 PM
    #4
    spitdog

    spitdog Well-Known Member

    Joined:
    Sep 2, 2014
    Member:
    #137440
    Messages:
    3,747
    Gender:
    Male
    Vehicle:
    2015 Access Cab V6 4x4 SR5 MGM
    I think it’s always a good idea when you replace those Schrader valves let them soak in a cap full of pag oil a bit. You don’t know how long they been laying around somewhere. Lube em up.
     
    gilligoon likes this.

Products Discussed in

To Top