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AC Problems S70 1998

posted by  dano009 on  Mon Apr 27 13:06 CST 2009
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last visit: Wed Apr 29 02:40 CST 2009
[RELATED]

Last summer, I blew my hose from the condenser to the . I had it replaced and the AC system recharged and I was back on the road again.

At around 70K, the previous owner had the evaporator replaced under warranty.
Soon after I had the AC hose replaced, I began having problems with my AC not cooling from time to time when I had it on control. If I turned the system off, and then turned it back on, it would cool again. Conversely, if I shut
the engine off for a few minutes, it would start cooling again. I took the vehicle back to where I had the AC hose replaced and the AC recharged and they checked for leaks with dye and found none.

I know my heater core needs to be replaced shortly as I can smell the anti-freeze from time to time. Now, even though I had my thermostat changed a couple of years ago, when its cool and I turn up my heat, I don't
get any heat unless the temp is set to 80 or in the red.

Do I have a compressior shim problem or maybe my climate control device needs replacing?

Anyone have any ideas where I should start troubleshooting?
Dan
98 S70 GLT 167K
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    AC Problems 850 1996

    posted by  someone claiming to be AC Problems on  Tue May 5 13:38 CST 2009 [RELATED]

    I found the source to be the AC switch in the dash(blue light). It is easy to remove once the knobs are off. Apparently it had intermittent continuity when it got hot. There is a pictorial of it apart - as it's a spring loaded beast. I took it apart, sanded the contacts flat (pitted). Works like a dream.

    Good luck








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      AC Problems 850 1996

      posted by  KlausC on  Tue May 5 13:48 CST 2009
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      last visit: Fri Oct 24 10:15 CST 2014
      [RELATED]

      Thank you for posting your solution!

      Now, the heater core. It is easy to replace, takes about 2 hours for someone as slow as me. Any spilled coolant can be mopped up with great quanities of newspaper.
      The reason the heat doesn't work is due to the corrosion inside the core, blocking the flow.
      --
      My name is Klaus and I am a V ♂ lv ♂ holic.







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