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A/C freezes up? V70-XC70 1999

posted by  unggthat on  Fri Jul 23 01:36 CST 2010
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last visit: Thu Mar 6 10:37 CST 2014
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Car is my 1999 V70T5. Air conditioning works wonderfully for a while, then freezes up with a stale air smell. If I turn it off for a few minutes and take the heat, it thaws and I can use it for a while longer. It does this less on the highway. On our recent trip to S. Carolina in high heat and very high humidity, it felt like I was spending more effort keeping the A/C running than driving the car!

So, I know what the issue is--it's freezing up. However, not being an A/C expert, I have no idea why. What causes this issue?

Thanks to anyone who can help!

Nate








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    A/C freezes up? V70-XC70 1999

    posted by  KlausC on  Fri Jul 23 05:51 CST 2010
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    last visit: Fri Oct 24 10:15 CST 2014
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    The AC stopped working but is not 'freezing' up. Taht odor you describe is the moisture on the evaporator being evaporated once the evaporator warms up.

    I suggest that you inspect the compressor clutch gap, it is probably greater than .040in, making it to hard to engage the clutch when it heats up. There are several quick fixes to decrease the clutch gap, just do a search for bread clips. Or have an AC shop remove the clutch and change the shims to decrease the gap.

    Klaus
    --
    Why are Volvos so endearing? Its just a car.








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      A/C freezes up? V70-XC70 1999

      posted by  unggthat on  Tue Jul 27 06:10 CST 2010
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      last visit: Thu Mar 6 10:37 CST 2014
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      Aha! Thanks Klaus--you always have a good idea of what's wrong. I've never really done much with AC before, but now that I've seen a few pictures, it looks quite simple. I'll chuck some bread clips in there and see how it goes.

      Thanks again,

      Nate







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