ACC not blowing cold air

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richard - 21 Mar 2005 14:01 GMT

Hello everybody
If you can help me with this it would be greatly appreciated. I own a
9000i (98 model) and the ACC has recently developed a problem, in all
modes. There is no cool air being mixed into the system, even on Lo
hot air is being blown. The system is fully gassed and appears to be
working ok. There are no diagnosis codes after calibration, just the
zero then back to normal display. I first noticed a loud ticking under
the dash on the drivers side, this lasted maybe a minute, I then
realised the system hadn't adjusted the cabin temp as normal. Now
there is a buzzing under the dash in the same place, as the system
goes through its normal startup operation, I hadn't noticed this
before.
Any help/advice/comments would be appreciated.
Many thanks
Richard

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Eg Egemarke - 21 Mar 2005 22:27 GMT

It sure sounds like the Servo motor is dead, maybe cammed (spelled right
??)over
You problably need to replace the Servo motor!

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MvH Eg Egemarke

http://www.dkfritidmotorcykel.dk/?id=265

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Bill Rule - 22 Mar 2005 13:40 GMT

it does sound like my ongoing problem (900S, '97) though mine still actually
works, there has developed a definite sound of plastic ratchet-teeth
skipping (partly only in my case I suppose) over the gears of the
servo-motor. Previous trawling of this site proved it to be not so rare,
but a long (and therefor $$$) job to fix professionally.(involves removal of
the entire central console)
Much luck, whatever happens.

Bill Rule

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yaofeng - 22 Mar 2005 16:21 GMT

Had the same problem with my 94 9k cs turbo right before the heating
season late last November. This is wife's daily ride. I didn't have
time to look into it. Been busy with my other SAAB's including
converting a 94 CDE to 5 speed. So I opened up the dash top and forced
the distributor flap the other way by pushing a connecting rod. She
got nothing but heat from then on (no AC of course). She sometimes had
to open the window a little despite shutting all vents.

I think I'll look into more when the weather gets warmer. This past
winter in the US north east has been brutal. Didn't even want to work
in the garage because it was so cold. I could always pull the
connecting rod back so she gets noting but AC when the weather gets
warm enough if I can't get to it in time.

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richard - 23 Mar 2005 10:41 GMT

Thanks for those comments, gives me something to work on, particularly
the issue with the heater flap

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