'96 850 A/C compressor over temp sensor/switch?

Discussion in 'Volvo 850' started by Atif, Aug 12, 2005.

  1. Atif

    David Taylor Guest

    This is the part that I'd be worried about since I really don't have
    There's no real knowledge required for this to be honest, just patience,
    tools and rubber arms.

    Nothing needs to be disconnected, just removed so it's just a time
    consuming unbolting job. I would be interested to know the labour price
    though because it took me about 3 to 4 hours to get it all off (first
    time) and a couple to get it back on again. Frustrating if you're
    paying servicing prices because the actual shim removal takes just a
    couple of minutes, it's getting to it that takes ages.

    David.
     
    David Taylor, Aug 14, 2005
    #21
  2. Well, it didn't work. We took it out shopping today (about 90 deg. F
    outside). It worked great for 10 minutes and then gave up, as usual.

    Could it still be clutch shims?

    Ho hum...
     
    Robert Lutwak, Aug 14, 2005
    #22
  3. Atif

    Atif Guest

    sorry to hear that...I'm still going to give mine a go tomorrow and see
    if I get lucky.

    -Atif
     
    Atif, Aug 15, 2005
    #23
  4. Atif

    Mike F Guest

    Yes, probably. You can try wiring a relay into the circuit, which will
    give the clutch a higher voltage, allowing it to work for ?

    Find one of those common 1 cubic inch 4 or 5 pin Bosch type relays.
    Mount it under the fan shroud top where the other relays are. Run a
    wire from the battery through a fuse to pin 30 on the relay. Run a wire
    from pin 85 to ground. Connect the wire that goes to the clutch to pin
    87. Connect the wire that was connected to the clutch to pin 86. If
    you have a 5 pin relay, you can just ignore the 5th pin, which may be
    marked 87, 87a or 87b. And if you have one of those temperature
    switches that you just disconnected, you can cut the terminals off an
    reuse them for this job.

    --
    Mike F.
    Thornhill (near Toronto), Ont.

    Replace tt with t (twice!) and remove parentheses to email me directly.
    (But I check the newsgroup more often than this email address.)
     
    Mike F, Aug 15, 2005
    #24
  5. Atif

    David Taylor Guest

    Well, it didn't work. We took it out shopping today (about 90 deg. F
    In my view that was always the likely suspect in the first place. :)

    David.
     
    David Taylor, Aug 15, 2005
    #25
  6. Atif

    Atif Guest

    Yep I had the same results. However I consider it time well spent. If
    I go ahead with the compressor replacement next summer, I will take
    comfort in knowing that I at least tried and checked that it wasn't just
    a bad switch.

    Could it just be the clutch gap? Sure, but based on what I've read here
    it sounds a lot more involved to test/fix.

    Since I love the car otherwise, I'm willing to save up to get the
    compressor fixed next summer.

    Thanks again everyone for the help/advice/pictures!

    -Atif
     
    Atif, Aug 16, 2005
    #26
  7. Atif

    David Taylor Guest

    Could it just be the clutch gap? Sure, but based on what I've read here
    Yes it always probably was the clutch gap. :)

    Fixing it is just a spanners and time job, nothing more.

    1. Unbolt annoying stuff that's in the way
    2. Remove clutch, remove shims, replace clutch
    3. Rebolt annoying stuff
    It'll give you something to do over the winter.

    David.
     
    David Taylor, Aug 16, 2005
    #27
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