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2003 V70 A/C control valve? V70-XC70

posted by  Indy452 on  Sun Jun 25 08:17 CST 2017
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last visit: Tue Mar 11 08:25 CST 2014
[RELATED]

A/C on 2003 V70 2.4t has died out. Checked the Freon and its good. When you turn it on, the compressor kicks on then off repeatedly within 5-7 seconds..

Taking a closer look at the system, I can't locate a filter/drier like traditional older A/C systems. I guess the car has a control valve of some sort that may be bad?? I don't really know... If so, where is it and how do I change it? Will it require the gas to be drained and refilled or is it plug and play?







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    2003 V70 A/C control valve? V70-XC70

    posted by  KlausC on  Sun Jun 25 09:32 CST 2017
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    last visit: Fri Oct 24 10:15 CST 2014
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    BTW, there is a pressure switch. It is located on the receiver/drier with a 3 wire plug. The receiver/drier is located forward of the compressor and aft of the condenser.

    --
    Keeping it running is better than buying new








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      2003 V70 A/C control valve? V70-XC70

      posted by  Poorgie on  Thu Jun 29 20:17 CST 2017
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      last visit: Sat Jan 12 09:01 CST 2013
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      I was following this thread hoping to find out where the low side port on a 03 V70 is located. I was going to check the charge on my daughter's car last weekend and found the high side port on top, left of center (of course my hose would not connect without an adapter), but I have yet to locate the low side port. Am I overlooking the obvious?








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        2003 V70 A/C control valve? V70-XC70

        posted by  KlausC on  Fri Jun 30 09:38 CST 2017
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        last visit: Fri Oct 24 10:15 CST 2014
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        Unless you want to hurt yourself, do NOT connect to the high side port.

        Look below the coolant reservoir bottle. Not much working room with the timing belt cover. The cap is black plastic and has 6Mn written on it.
        --
        Keeping it running is better than buying new








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          2003 V70 A/C control valve? V70-XC70

          posted by  Poorgie on  Fri Jun 30 15:12 CST 2017
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          last visit: Sat Jan 12 09:01 CST 2013
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          Thanks for the reply. I found the low side tap soon after I posted. I'm not sure how I would be hurt by hooking my gauge to the high side, unless you were assuming that I was going to try filling it on that side. At the moment I cannot attach the high side hose of my manifold set to that tap, in order to monitor high side pressure, without an adapter because the tap/port is recessed below the sheet metal cover atop the core support.








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    2003 V70 A/C control valve? V70-XC70

    posted by  KlausC on  Sun Jun 25 09:09 CST 2017
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    last visit: Fri Oct 24 10:15 CST 2014
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    How did you check the gas pressure? Was the engine running and the compressor cycling while you were taking readings? What was the low and high pressure?

    If you checked the pressure with the engine off, and the pressure was around 40psi, you are low. I have read static pressure between 60-300psi, depending on ambient temperatures. the high pressure side has a pop relief valve that releases pressure when it exceeds 500psi!

    --
    Keeping it running is better than buying new








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      2003 V70 A/C control valve? V70-XC70

      posted by  Indy452 on  Sun Jun 25 09:23 CST 2017
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      last visit: Tue Mar 11 08:25 CST 2014
      [RELATED]

      Checked with a set of gauges. I added a can of 134a to the point where it would release somewhere down below...I assume a relief valve. I didn't have the adapter for the high side since it sits so low on the car. The high side adapter I have has too much of a bend to get it on the high side port on this car...







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