Has anybody installed a switch inside the car to turn on and off the electric fan rather than the computer doing it for you when it wants to? This is for an '01 GT, so I guess 94 or 96-04 would be wired almost identical. If anyone has instructions or anything, please let me know. Thanks

 

Cooling the 4.6 Mustang with a Fan Switch

Unfortunately our Cobras and GTs DO run hot. There are a few ways to cool it. If it is a 96 Cobra you can try and get Ford to do the TSB cooling upgrade which will help, but the downside is that a bigger rad (should you ever desire one) will no longer fit. Of course you could just drop in a Griffin, and be done with it. But should funds not be available …… read on.

This modification can be done in about 20 minutes and costs next to nothing. When used, it will lower your operating temperature approximately 1 to 1.5 letters on the “Normal” gauge. All that is involved is to wire in a ground for the high-speed fan relay and switch it so that you can turn it on anytime you want, and leave it on if so desired! This mod I did last summer, and it WORKS LIKE A CHARM.

THE MOD:

Pull the passenger kick panel and locate the LIGHT-GREEN wire with the purple stripe. NOTE: There IS a dark-green one on the Cobra….(wrong one - it's a knock sensor wire). Anyway......once you have located this wire....which will be grouped with a bunch of other wires running from the EEC up the back of the fire-wall - hard to find, but it’s there......(very difficult to get to - Yoga helps).....tap into this wire (don't cut it in 2, just tap into it) and then solder it back up and tape it nicely. Then to test it quickly turn your key on to cycle, and touch the other end of the wire to the ground bolt (also under the kick panel). You will hear the fan turn on....YEY. Now, you are NOT done yet! Wire in a 1/2 amp in-line fuse holder with fuse (safety reasons - no other purpose) and then continue this wire to a switch and ground the other side of the switch. You are all set! Kenny Brown sells this package for quite a bit and they give you a switch that goes in the glove box. You could put it there if you want. I have a coupe, so I purchased an additional Fog-light switch and installed it in place of the coin holder. It's nice and neat and accessible.

Grounding this particular wire simply closes the high-speed fan relay and turns on the fan!

HOPE THIS HELPS

 

why would you want to do that?