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Cooling fan conversion HELP!!!!

NPdarkside21

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After swapping from belt to electric cooling fan, the fan stays on even while the engine is off. I originally had the ignition wire from the kit spliced into the 50A ignition fuse in the engine compartment fuse box. Any suggestions on where to splice the wire on a "Hot in run only" location? ('99 XLT FlexFuel w/air conditioning). The fan kicks on when up to temp and when the a/c is on, it just stays on until the engine cools down and I'd rather not have to wire in a shutoff switch.
 


Rearanger

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After swapping from belt to electric cooling fan, the fan stays on even while the engine is off. I originally had the ignition wire from the kit spliced into the 50A ignition fuse in the engine compartment fuse box. Any suggestions on where to splice the wire on a "Hot in run only" location? ('99 XLT FlexFuel w/air conditioning). The fan kicks on when up to temp and when the a/c is on, it just stays on until the engine cools down and I'd rather not have to wire in a shutoff switch.
First, I installed an eFan on my truck. I do not recommend splicing a high amp draw into any other circuit. Buy a fused circuit add on that attaches to the positive battery post. What fan kit did you buy and where is the fan on/off coolant thermo switch located?
 

franklin2

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The fan running after the engine shuts off doesn't hurt anything, and can actually help the engine cool down as it sits there. When the OEM's first came out with e-fans, they were wired that way. Do you remember "Caution, fan can start at anytime" written on the fan shrouds?

I have the electric fan on my BII wired directly to the battery. I don't have the A/C working. When I turn the engine off, the fan will run for a minute or so and then cut off, it depends on how hot the engine is and how hot it is outside. Sometimes it will start up a few seconds later and run a shorter amount of time. I have never had any problems with the battery with it doing this.

I bring up the A/C. If you have working A/C in your truck,, you must interlock the e-fan with the A/C compressor, usually with a added relay. The fan must run at all times, no matter the temp of the engine, if the A/C is activated. You must have air flowing through the condenser coil.
 

Elutheros

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You can add a switch connected to the ON side of the ignition through a relay to keep the fan from running when the engine is off. I used a switch with a light indicating it is on so I wouldn't miss that it is turned off completely. I'll try to track down the wiring diagram for you.
 

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