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AC Service Valve location S70

posted by  tjs on  Tue Jun 13 14:10 CST 2006
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After a relatively quick inspection of my engine compartment I was unable to locate the two AC service valves to a high degree of certainty. I need to do a quick-and-dirty recharge for a roadtrip this weekend and then will face the music next week when I have to start leak-hunting. Thanks!
tim
'98 S70 GLT, 101K








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    AC Service Valve location S70

    posted by  MadeInJapan on  Tue Jun 13 17:05 CST 2006
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    last visit: Sat Oct 2 06:34 CST 2010
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    No 2 valves...just the low pressure in ours. It's located right behind the front headlight on the passenger's side. Look down and you'll see a screw on cap with 9mN or something like that on it in white letters. Just unscrew the cap and you're good to go. Be careful. That fill port is very close to the serp. belt which will be spinning when you try to recharge.
    --
    1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon. My cars have been running so well lately they've got me worried.








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      AC Service Valve location S70

      posted by  tjs on  Wed Jun 14 11:35 CST 2006
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      Thanks for the tip... I thought that was it but wasn't totally sure when I couldn't find the high side. While recharging w/ 134a the compressor was oscillating on and off at the rate of about once every three seconds. Not only did this make taking a pressure reading tough (the guage also oscillated with the compressor) it certainly doesn't sound/feel good. In the end, I'm still blowing warm air. The pressure guage oscillated between ~25 and ~48 psi. As far as I can figure I only added about 8 or 9 oz of 134a... should I try and add more to see if the compressor will stay on w/ more refrigerant? Are my hopes of a quick/cheap/temporary fix crushed?







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