1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Leak in AC system

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Carsten, Apr 28, 2024.

  1. Carsten

    Carsten New Member

    Joined:
    May 24, 2023
    18
    5
    0
    Location:
    Columbia, SC
    Vehicle:
    2017 Prius
    Model:
    Two
    Hi all,

    I did a vacuum test on AC system and it would not hold a vacuum.

    Then, after watching a youtube vid, I pumped compressed air into the low side valve to see if I could feel/hear a leak. I did hear air, it was coming out of a hard line that runs up into the front fender. I assume this to be some sort of overflow/drain line, and that this should not be leaking.

    On this hard line there is a little block where the high side valve is on the side of that there is something plugged in. Could this be a solenoid to open and close this line? Maybe this is faulty?

    Thanks, Carsten
     

    Attached Files:

    #1 Carsten, Apr 28, 2024
  2. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,483
    15,210
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    On a gen 3 that would be the pressure sensor. Probably same on gen 4.

    System should not have any solenoid-operated refrigerant drain lines....
     
    #2 ChapmanF, Apr 28, 2024
    Carsten likes this.
(You must log in or sign up to post here.)