Over Heating problem 88 audi 90

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Old May 23, 2002 | 07:49 AM
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Default Over Heating problem 88 audi 90

I posted a while back about my car over heating. I took some time out and looked over the car. Let the car sit and run and when it heated up the fans never went on. I am not sure where the fuse is for the fans but what I did find out was that there is this group of wires that lead into a plug towards the bottom of the radiator. That plug is not plugged in. Here is what sucks I can not find the other end to the plug and after examining the three wires it appears that someone did some probing, as there are holes in each wire. I think the wire colors were red with blue tracer, red with black tracer, and brown. Does anyone have a wiring diagram of this? Again it is for an 88 Audi 90 4 cylinder. TIA
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Old May 23, 2002 | 11:04 AM
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Default Re: Over Heating problem 88 audi 90

As a guess I'd say the plug is the two-speed thermo-switch. It should connect to the cooling fan, looking into the engine bay, bottom right hand side. Without the thermo-switch connected the system believes the temp. to be too low, hence the fans won't spin up.

Hope that helps.
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Old May 23, 2002 | 12:11 PM
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Default But what if there is no other wires to connect that plug to. Is there someway I can make my fans

work
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