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Ok i rember that someone was talking about this a long time ago but ...

1996 Taurus does anyone know what to do to be able to turn on/off the cooling fans when ever i want to?
 

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Originally posted by SLO&EAZY@Mar 3 2004, 02:17 PM
Come on you guys ....all this knowledge and noone knows!!!!!!!!!!!
It shouldnt be that difficult, either get a switch and wire it so that you can manually turn on the fan, or do something with the thermostat.

Im sure others will chime in, just give them awhile. People gotta work during the day.

-DC
 
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There's a couple of ways to do it. One is through a chip or PCM reflash, the other is by using an adjustable fan controller. Here's a link to Summit Racing, and their line of controllers. Fan controllers

I've never done it, so that's my extent of the knowledge of it.
 

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Here's a dirty trick:
(not really recommended, for Testing and Educational Purposes only) heh

You can also install a switch under your dashboard wired to the Engine's Coolant Temp Sensor (located near the Thermostat), there are two wires, just cut one of those wires in the middle and attach your switch connections there. When you hit the switch the fan will start spinning and you'll notice the engine gaining a few rpms.

This can be considered cheating and it makes the car waste some extra fuel all the time the switch is thrown in, but in real life, it works, not the way it should but it does make your engine temp go low. God knows the implications and side effects of doing this, you're on your own under your own risk if you do it (I did it and 5k miles later my car seems happy tho, without any noticeable side effects so far) Not really recommended but if you're desperate this oughta do the trick till you install an aftermarket temp sensor or better.
 

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Why hack into the coolant temp sensor when you can just run a hot wire to the fan and control it that way with a switch? That'd be a lot safer.
 
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I got worried for a minute there and thought you weren't paying attention.


OMG!!!11 IT'S BEEN A WHOLE DAY AND HE HASN'T REPLIED!!11


 

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Depends on when you want to run the fan. If it's when the car is running then get the Flexilite adjustable fan controller from Summit and then use it to ground out the fan relay coil.

To wire the fan directly takes a HD circuit of ~40 amps. I would only do this if you wanted to run the fans when the car was off.
 

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A couple of years ago I purchased an Hayden Adjustable Fan Control from Pep Boys for $20.00, and it has worked well for me ever since. Best mod I've ever did to my bull. Solve my engine overheating problem (due to cooling fan not running often and long enough) when replacing sensors did not.

Some things to consider:

1. A manual switch is something you have to remember to turn on and off, and risk overheating your engine if you forget to turn it on. Where are going to mount it, do you want to drill a hole in your dashboard?

2. You don't want or need the cooling fan to run all the time when the engine is running because that could lead to early fan bearing or motor failure.

3. An Adjustable Fan Control switch will allow you to take control of when the cooling fan cycles on & off away from the PCM without disturbing the factory circuitry or causing any ill effects. Adjustable temperature ranges can be easily be changed in summer and winter using a screwdriver and your dash ECT gauge. Easy to install. I mounted mine on the upper radiator support under the plastic shield, and drilled a hole in the plastic shield large enough to access the adjustment screw with a screwdriver. Tap into a wire that is always hot when the key switch is in the on position or when the engine is running.

Good luck with your project and let me know if I can be of any help (although I won't be around much in the next couple of days due to travel).

Dennis Wolfe
 
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