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Date: Sun, 13 Mar 2005 14:28:03 -0500
From: KeithG <noonenospamay.com>
Subject: Re: Climate control on 96 9000 2.3 LPT CSE


I'm watching this thread as well. My '97 does this when it is cold out. I have not noticed any oddity when it is hot out, though. Basically, after about 1or so hours driving in the winter (cold, here in the northern hemisphere) the HVAC starts blowing cooler air. My '95 did not do this as far as I remember. The ACC from the 95 is controlling the system. I do not think it is the temp sensor in the dash, but probably the one further up stream. I do not know where this sensor is, but would think it would be on the inlet side of the heater core. If someone here has more info on the rest of the ACC system, Please let us know. My guess is that it is heat soaking it to the point that the ACC thinks the incoming air is warmer than it actually is. KeithG Per Laursen wrote: > "Pidgeonpost" <Pidgeonpostnospambrain.com> wrote in message > news:d0vvfu$61a$1nospamg3.svr.pol.co.uk... > >>Folks...the ACC has started behaving oddly. It works for around the first > > 30 > >>minutes of a journey, though tends to heat the cabin a bit more than the >>temperature setting suggests it should. After that time the air coming out >>of the ducts rapidly cools, until even with the control set to 21C it's > > just > >>plain outside temperature air. If I crank the setting up to (say) 25C it >>will warm up for a while, then it's back to cold again. >>So does it just need a gas top-up or is it something expensive? The >>compressor is obviously kicking in, so what's left? >> >>What does the jury think? >> >> >> > > > Have the exact same problem with my '95 (otherwise same car). > Asked here a year ago or so - replies covered various good ideas (replacing > the cabin temp sensor/fan, resetting the ACC etc) - but none hit the problem > :( > I see it both in cold (0C) and warm (25C) weather - in warm weather it's > definitely not just 'unprocessed' outside air, but COLD. > > /Per > >

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