Electric fan swap screws with my wideband - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 3 Old 07-21-2011, 08:03 PM Thread Starter
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Electric fan swap screws with my wideband

hey everybody, I just swapped an electric fan setup into my 89 mustang. Im using an sn95 fan from a 94 car. i did go the cheaper route with a fan controller from autozone. I did the 3g alternator swap from a 94 car as well.

I'm having an issue since the swap. My innovate LC1 wideband has been shutting off while im driving. It stays on for maybe about 10 min or so, and seems when the fan kicks on the wideband gauge shuts off. Also the fan decides not to work all the time. Im thinking when the fan pops on maybe theres some kind of voltage spike? that caused the wideband to shut off, and also shushuts the fan off also after it kicks on. it seems like the fan doesnt pop on because the car will start to overheat, and when i pull over and shut the car off and then switch the car "on" the fan turns on, but then when u start her up, the fan it doesnt run. im not really sure whats going on. im thinking about maybe upgrading the relay and wiring in a diode like the guy did in the link i provided below. if anyone has any advice please help im stumped.


http://www.fordmuscle.com/archives/2...cfan/index.php


Last edited by boosted302sleeper; 07-21-2011 at 08:11 PM.
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post #2 of 3 Old 07-26-2011, 09:21 PM
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you can buy a dual inline fuse that will tap in an existing fuse in the instrument panel. a seperate fuse for the new device fuse. most parts stores have them. use that as a power source for the wideband. potentially you can overload the fuse with what you have. for the wideband id recommend a clean chassis ground 6-8 inches away from an existing ground. i used an anchor nut for heat gasket by the shifter. just exposed more metal under paint of anchor nut.

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post #3 of 3 Old 07-30-2011, 12:38 AM
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It could also be the CHEAPO fan control, having an issue with back feeding the ground. If all this started after the 3g install I would suspect a bad ground. I have the same 3g setup on the car I bought a couple of months ago, and I have been chasing an electrical problem as well. Long story shortened, today I had to replace the radiator, due to the bone head I bought the car from using radiator ties to hold it in place. He hard wired the fan in with no plug or temp controller. When I cut the wires at the splices to remove the fan I saw some melted insulation on the splices. I opened up the wiring and found that it was dangerously close to catching fire! After removing this stuff and replacing the gauge cluster that went bad all is fine. My car even had some issues with intermittent bucking and stalling issues, that to has disappeared after rewiring the fan and installing it correctly. If you replace the fan controller I would spring for the Flex-a-lite electronic controller. It has a soft start and does not tax the electrical system so bad. Just be careful and use a fairly large wire gauge wire to the fan. The 94-95 fans seem to pull a hell of a lot of amperage on start up if you don't use a soft start controller.

A wise man once said "It's better to remain silent and appear ignorant, rather than speak and remove doubt!

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