'02 WRX - A/C troubleshooting

Discussion in 'Subaru Impreza' started by ZZ, May 8, 2007.

  1. ZZ

    ZZ Guest

    Hi!

    If there's a good soul willing to help, I'd like to hear what would be a
    good way to figure out why A/C stopped functioning. Already checked fuses,
    all fine. Checked A/C relay (in the engine compartment) and swapped it with
    the one from the next slot, no help. When I used to turn A/C on before,
    there used to be a short click sound (most likely relay) and then,
    compressor would start. Now, there's no click and only fan starts to blow.
    Green LED on 'A/C' button is lit, though. Suggestions? I noticed three
    relays on the fuse block under the steering wheel. Is any of those
    responsible for A/C?

    ZZ
     
    ZZ, May 8, 2007
    #1
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  2. ZZ

    strchild Guest

    I'm mostly unfamiliar with A/C systems, ZZ, but fellow board poster Steve J.
    keeps various manuals online. Just happens to have an '02 WRX/Impreza
    manual, from which I would suggest taking a look at the Wiring, and maybe
    some other section, for troublshooting ideas.

    http://chester.uccs.edu:80/WRX_Manual/

    Good luck,

    ~Brian
     
    strchild, May 8, 2007
    #2
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  3. ZZ

    ZZ Guest

    Thanks a lot, Brian!
     
    ZZ, May 8, 2007
    #3
  4. ZZ

    mpberti Guest

    its most likely a overcharge or undercharge of the coolant is the
    pressure is not right the compressor will shut off get your pressure
    checked and add some 134a
     
    mpberti, May 9, 2007
    #4
  5. Yep, quite likely the refrigerant has leaked out enogh to trigger the
    low pressure cut-out. I dunno if it's important but the wife's'03
    Outback had both suction and discharge hoses replaced (barely under
    warranty) dur to leakage. Perhaps Subaru had a bad supply of them?

    Carl
     
    Carl 1 Lucky Texan, May 10, 2007
    #5
  6. ZZ

    ZZ Guest

    One additional question. Recently, fuel rails were replaced by Subaru
    service due to a leak (smell of raw fuel). Is it necessary to drain
    refrigerant when replacing fuel rails? I suspect that service guys didn't
    refill refrigerant after this procedure or they managed to screw something
    up during the procedure. By a chance, I didn't have to turn on A/C until
    recently and that's why I didn't notice A/C malfunction before....

    ZZ
     
    ZZ, May 10, 2007
    #6
  7. Often they can 'lay aside' a compressor with lines attached - though
    that is not without risk.
    I just don't know. perhaps someone here is a tech and knows the
    procedure. It is very possible they just forgot to re-charge the system
    if it was opened.

    Carl
     
    Carl 1 Lucky Texan, May 10, 2007
    #7
  8. ZZ

    bigjim Guest

    Should bought extended warranty- subaru Gold covers AC. Let dealer
    fix it for a small deductible!!!!
     
    bigjim, May 12, 2007
    #8
  9. ZZ

    ZZ Guest

    Thanks for spending your time and posting advice 'bigjim' but I was
    asking more for a technical advice, not a generic consumer advisory....

    ZZ
     
    ZZ, May 14, 2007
    #9
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