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1995 900S slow speed engine cooling fan

  
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AlexBinnie




Joined: Jul 16, 2008
Posts: 3



(Msg. 1) Posted: Wed Jul 16, 2008 7:55 pm
Post subject: 1995 900S slow speed engine cooling fan
My 1995 900S cooling fan comes on as soon as I turn on the ignition key, and it seems to run all the time. When I finish a journey, the fan stays on for about 20 seconds and then stops. Is this normal? The cooling system is OK and the engines runs at normal temperature with the gauge at 9 o'clock. Does the fan turn off when the car is actually moving? The trouble is one cannot monitor the fan when the car is moving!!!

Any help here is appreciated.

Alex.

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Echo088880

External


Since: Dec 05, 2006
Posts: 7



(Msg. 2) Posted: Sat Jul 19, 2008 5:05 pm
Post subject: Re: 1995 900S slow speed engine cooling fan [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Jul 19, 6:22 pm, Alex wrote:
> My 1995 900S cooling fan comes on as soon as I turn on the ignition
> key, and it seems to run all the time. When I finish a journey, the
> fan stays on for about 20 seconds and then stops. Is this normal? The
> cooling system is OK and the engines runs at normal temperature with
> the gauge at 9 o’clock. Does the fan turn off when the car is actually
> moving? The trouble is one cannot monitor the fan when the car is
> moving!!!
>
> Any help here is appreciated.
>
> Alex.
>
> --
> Posted at author's request, using moderatedhttp://www.AutoBoardz.cominterface
> Thread archive:http://www.AutoBoardz.com/http://saab.autoboardz.com/1995-900S-slow-s...

I've had several Saabs, and they all had the fan run 20 sec or so
after the engine stops (often but not always). I believe the fan
cycles off and on while driving.

Robert

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AlexBinnie




Joined: Jul 16, 2008
Posts: 3



(Msg. 3) Posted: Sat Jul 19, 2008 7:33 pm
Post subject: Re: 1995 900S slow speed engine cooling fan [Login to view extended thread Info.]
Problem solved! My 900S is a Singapore one which has an A/C mod to have the slow speed fan come on all the time the ignition is on. I found this mod in the cable connection to the A/C trinary switch assembly in front of the radiator. I removed this mod and now the fan only comes on when the engine temp goes above normal. Everything else works as expected. This mod connects the black and yellow wires together in a short link inserted into the 4 wire cable connector. It is easily removed.
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- Bob -

External


Since: Jun 12, 2006
Posts: 144



(Msg. 4) Posted: Mon Jul 21, 2008 5:09 pm
Post subject: Re: 1995 900S slow speed engine cooling fan [Login to view extended thread Info.]
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AlexBinnie




Joined: Jul 16, 2008
Posts: 3



(Msg. 5) Posted: Fri Jul 25, 2008 10:59 pm
Post subject: Re: 1995 900S slow speed engine cooling fan [Login to view extended thread Info.]
I figured that since the car was a Singapore new one it would have been optioned with mods to suit a hot, city style regime, so a slow speed continuously operating fan would be likely. Most AC systems have a trinary pressure switch to turn on the slow speed fan when the AC pressure builds up, so I took a good look at that switch. On the 900 it is behind the grill just before the radiator. There it was!

The fan still comes on when engine temp goes high, and does still keep going for a few seconds after shut down. All very satisfactory.
Cheers.
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