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1998 S90 A/C malfunction question. Need expert advice. S90-V90

uid 11021's pic
posted by  dewfpo on  Wed Jun 20 10:36 CST 2007
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last visit: Thu Oct 23 18:34 CST 2014
[RELATED]

When the engine is cold (first start) and I put the A/C on, it blows ice cold no matter how hot it is until I shut it off. On restart after a short shut down, the air out of the vents will just start to get cool (not cold) for a about a minute, then go warm and stay warm. Turning off the compressor for 15 minutes or so then turning it back on does nothing. Just warm air blowing out of the vents.

The next day, cold engine again, the A/C blows ice cold again until I shut it off and restart.

I have checked the following, the heater valve is in the closed position (no coolant to the core), the pressure in the low side pipe is 25-30 psi with the compressor running and engine fan running at idle speed. The accumulator is hot/very warm to the touch.

The air coming out of the middle, dash vents is noticeably warmer then either side vents when warm air is comming out.

I am baffled. Could use some advice.

Thanks, DEWFPO
--
1998 S90 077,400 and 1995 964 154,100






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