Date: Wed, 3 Apr 2002 15:18:28 +0000 (UTC)
From: Jim <w0lv3r1n3nopsamo.com>
Subject: 2 problems. Could be linked ?


Hi folks, I have a 1994 ? (UK L) 9000 CSE 2.3 non turbo. The car is fitted with the ACC climate control system. Since I bought the vehicle (used), the air-conditioning has not worked. This I put down to the fact that the system was probably empty of Freon gas, since I hadn't laid out the money to have it flushed and refilled. It supplied warm/hot air, and in the UK, that's what you need far more often than aircon. I put it off. Once or twice, the ventilator fan motor failed. Once for a day, and once for several weeks. Just recently, it failed and didn't come back. That is to say, the ACC unit (on Auto or Econ setting) shows the fan speed LED in the centre position, and the fan is not engaged. If you try to select a higher speed, the LED jumps to the minimum position and stays there. The rear window fan is working, along with the heated rear window and (apparently) the vent selectors. After checking the obvious fuses, I put this down to a faulty blower motor, and filed it in the "sort it out when I get some time" department. I have run the auto diagnostic (calibration) test on the ACC, and it finds 1 fault. But then I think it always did, even when the fan was working. Just last week, on a long run, the engine decided to overheat. The radiators are intact, and the water level is normal. Basically, the cooling fan is not engaging when it should. I have checked all the fuses and relays, and when reading my Hayes guide, was surprised to learn that in addition to the normal thermostatic switch, relay and fuse in the cooling fan circuit, there also seems to be some relationship between the fan and the ACC unit. (I guess because the AC unit uses the cooling fan as an air intake to the compressor). As yet, I havent tested the thermostatic switch, since the coincidence of 2 problems with the same common denominator is leading me to think that maybe my ACC controller is just going from bad to worse and taking systems down as it goes. Has anyone had a similar experience ? Would anyone have any advice on how to go about sorting out this jolly little problem ? I'd be very grateful.

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