'02 WRX - A/C troubleshooting

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

  1. ZZ

    ZZ Guest


    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, May 8, 2007
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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.


    Good luck,

    strchild, May 8, 2007
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  3. ZZ

    ZZ Guest

    Thanks a lot, Brian!
    ZZ, May 8, 2007
  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
  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 1 Lucky Texan, May 10, 2007
  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, May 10, 2007
  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 1 Lucky Texan, May 10, 2007
  8. ZZ

    bigjim Guest

    Should bought extended warranty- subaru Gold covers AC. Let dealer
    fix it for a small deductible!!!!
    bigjim, May 12, 2007
  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, May 14, 2007
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