Re: ok here we go we are going to check the entire system - Saab 9000 Bulletin Board - Saabnet.com
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Re: ok here we go we are going to check the entire system
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Posted by aero guy (more from aero guy) on Wed, 4 Jul 2001 19:30:39 Share Post by Email
In Reply to: Aero Guy..., Morgan [Profile/Gallery] , Wed, 4 Jul 2001 01:38:29
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We will check cooling switch first- remove the three contact connector on th right side of the radiator - (Passenger side -USA, drivers side UK.)
did fan stop? no- the the relays are keepin it on
Yes - may be bad switch -
check across pins on switch for black and Blue wire. if engine is cold, there should be no continuity, if continuity - replace switch
If open - now check across wires for Black and Blue/white wire. if continuity - replace switch.
If open proceed to relay Light/cooling relay box forward of battery Remove relay on left side just above row of fuses and next relay to right below long headlight relay. These are the high/low relays for your fan
Place jumper wire between black and blue wire on fan switch. Install the center relay, the fan should run in low speed only.
Remove center relay and jumper.
Install jumper between black and blue white, install outboard relay - fan should run in high speed.
now remove relay and jumper
repeat without jumpers and install only one relay at a time but not both. if fan runs at same speeds, then that relay is defective. If you want to try to repair relays we can go into that but first I would like to know what you find. I have an idea the time delay part of the low speed relay is defective.


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