Date: Mon, 14 Mar 2005 22:35:46 -0500 From: KeithG <noonenospamay.com> Subject: Re: Climate control on 96 9000 2.3 LPT CSE
Thanks, Mike! Actually, my fresh air door motor died the same way. It is also in the open position never to return to a closed position at least until I find a new motor ;-). KeithG Mike wrote: > I wonder if the fresh air vent is stuck in the "no fresh air" position. > The vent on my 98 9000CSE is controlled by a motor which failed a > couple years ago. My symptoms were different in that my problem was > that the interior fogged up after 15-20 minutes of driving. However, > it seems to me that if the ACC system is tuned for fresh air of a known > temperature, and that air does not enter the cabin, unpredictable > results will occur. I solved my problem by forcing the vent to the > open position and unplugging the motor - since I live in a rural area I > don't really need to close off the outside air. > > Mike > > KeithG wrote: > >>OK, I went to the EPC. There is a 'Mixed Air Temp" sensor on the > > right > >>side of the main HVAC unit behind the dash. I do not know the best > > way > >>to get to this, either remove the glovebox/RHS airbag (on LHD cars) > > or > >>maybe through the top after the dash cover is removed. >> >>I guess this could be bad or just a bit off. I do not yet know if > > there > >>is a way it could be better insulated or what, but you may want to > > see > >>if you could pick one up in a JY just to see if it behaves > > differently. > >>9k '93-'98 part number 43 18 788. This was a running change in mid > > '92 > >>from 96 29 395 which was from '90-'92. Let us know what you learn. >> >>KeithG >> >>KeithG wrote: >> >>>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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