how to wire radiator fan to ignition

i have it running from the fan to the batter and from there it runs up the side of my car and in through the door not like on the outside but along the hood under in and through the door. If so do you know if they come in different temperature turn-on specifications? idk why? Above is the picture for our wiring plan! Posted by SinfulByNature on Apr 01, 2015. (Please call for fan shroud suggestions). 2 years ago. After this is all finished, connect the black (negative) wire back on to your battery. Extend the other end of the jumper wire over to the positive terminal of the battery. Wiring: The ignition source must be a steady positive supply of 12 or 24V DC. 20. info@daviescraig.com.au. signal circuit 12v switched (ignition or fuse panel) power “on” when key is in the “run” position. Step 1 - Wiring. This will allow mounting of the fan(s) without compromising the core of the radiator. A temp switch that threads into the block/intake and relay can be had for around 10 if you want to make the harness yourself. Thanks! One main safety step is to unhook the BLACK (negative) wire from the battery, and when you do so make sure it will not touch the RED (positive) wire or any metal around it! IMPORTANT NOTES Four Wheel Drives - monitor engine temperatur i need to know how to wire a toggle switch for my fan because it doesn't work and every time i try to wire it or have someone wire it for me it catches on fire. Here is only some of the equipment we need to have in order to make this possible. Now easily tape the wires and butt connection to hold it in place. Another option is to transplant a fan from another car. Step-by-step we show you how to get it done. 4 years ago. The first step in adding a switch to a radiator fan is to disconnect the battery's negative terminal. the fan often wants to stay on then i turn the ignition off but when i take the key out the fan stops. Get the 10 gauge wire and place it through the hole in your fire wall. Then ground a wire to connect to the switch and you’re done. Attach the fan to the small area around the core Of the radiator where there is a metal lip that is approximately 1/4" to 3/8". I mean I did this project just for my engineering assignment but who knows maybe Ill do more work. Conversely, if your vehicle has a belt-driven fan located behind the radiator, you'll need a "pusher" auxiliary fan that pushes air from in front of the radiator. The black wire that comes attached to the fan controller attaches to a good ground. and off at 175°F. Clicking this will make more experts see the question and we will remind you when it gets answered. That's assuming the radiator itself IS GROUNDED PROPERLY. Tip Then Larger gauge blue w/red and blue/black went to the fan. William Kinsey lives in Concord, N.C. Cut both wires and strip 1/2 an inch of insulation off of the ends of the two fan wires. Cut it. I installed relay inline. but its deff not safe!! Connect the Red to the red … Electric engine cooling fans are used to help remove the excess heat produced by the engine during the combustion process. Nice but a few suggestions i might add is you add a relay too save your switches from arching. Extend the other end of the jumper wire over to the positive terminal of the battery. goes to the +12 volt of the A/C compressor clutch wire. and off at 165°F. Please enter your email address. 87 (red wire) connects to the positive wire on the electric fan. So today we are working on my old 1964 Buick Skylark. 2 years ago battery + ==> IGN fusible link ==> ignition switch blue+black wire ==> relay coils. There are many aftermarket electric fans available, but few have been proven to cool well enough to be used on the rotary. Then use the thermostat for the switch cause they are low volts. I have a FI tech injection it says hook the fan wire to the ground. Unscrew the according link from ON position of the switch, put the wire around it and simply tape it! Mount the fan as high up on the core as possible. You can get the current for the thermostat at a switched 12v that way it only works when the car is on, and the proper temperature. He also has several years experience as an outside plant engineer and planner with AT&T. Reply Some auxiliary fans are "reversible", which means they can spin in either direction to pull or push air from either side of the radiator. Blue small guage black small guage these wire went to the temp sensor for the bottom radiator. Blue/red was 12v blue/black ground. So we have bought a Ford Taurus 2-speed fan, this fan had rumored to cool down the biggest and some of the toughest blocks around! Now since it is in place continue to the next step! Where Do the Four Wires of an Electric Fan Relay Go (with relay numbers)? He also currently owns and operates Sophisticated Curves, an online fashion mall that caters to the needs of plus size women. He currently holds a Bachelor of Science in electrical engineering from the University of North Carolina at Charlotte and a Master of Business Administration from the University of Phoenix. Thanks for the suggestion guys! NO - Repair open in the wire between the radiator fan relay and the ECM/PCM. Comment; Flag; More. For a remote battery, it can be connected to a power port in the engine compartment, but it should be fused. Print this page; Share this page × Ad. The orange wire on the relay should see a 12 volt signal when the ignition switch is turned on. I would swap the sensors depending on the season. So now we have a wire that goes through the engine bay to the cabin of your car! Next we will find a piece of metal inside the engine bay to screw it onto. This will be the big red wire that is connected to your ignition and sometimes even the red (positive) wire to your battery. Now lets get the power wire in place. This will be the wire that connects your switch to your fan power wire. For instance the blue is our ground wire and the black is power wire. 18. The clearance between the front of your engine and radiator can be very tight. Now take the power wire from your fan and connect it to the wire that is going through the firewall. This heat would otherwise destroy the engine if allowed to remain. 16-18 ga: all others. Connect the other end of that wire to the engine block or any metal part of the car body. Next, both of the black wires from the relay can be spliced together and ran to your thermostat switch. From a 10 amp fused 12 volt source run a wire to the toggle switch. 5 years ago. This … instead of a switch you can get a fan controler from the autoparts store for 20 to 30 and it will turn the fan on and off as needed like a factory fan would work, Reply A toggle switch can be wired into the system to manually override the cycling of the fan. 30 (other … Locate the positive and negative wires on the cooling fan. When the wire touches the positive terminal of the battery, the fan should come on. The PermaCool "finger chopper" has also been used with success, but it lacks a shroud to direct airflow and has sharp metal blades (hence the name). There are a number of problems that arise, 1st, what do we use to switch the fan? Then make sure the the blue wire on the Power link (middle link of switch) is connected to the main ignition wire of the car. Want Answer 1. 5- 1 pack of quick disconnects (male) -10 gauge-, 8- Pair of needle nose pliers or some clamps, Any of these parts can be purchased from an O'Reillys or Hardware Store. Depending on the model, the thermostat (sending unit) triggers the fan on at 185°F. DNAP420 I like your intelligent suggestions. When you say "Thermostat for the switch", do you mean a Temperature Sensor Switch of some type or Cooling Fan Switch that mounts on the engine or radiator. system as an ignition source as it may cause failure of the management system and/or the electrical system. This ignition wire will be in your cabin under the dash connected to your key system. on Step 2, One easy thing is to take a rag or piece of cardboard and wrap it around the negative cable end peace, 2 years ago or on at 195°F. First off you're gonna need a car. How do i wire my radiator fan separate from the ignition? Copyright 2020 Leaf Group Ltd. / Leaf Group Media, Aaroncake: How To Properly Install An Electric Fan. Unscrew the according link from ON position of the switch, put the wire around it and simply tape it! on Introduction. 5 years ago Disconnect the jumper wire. Fuse tap for wiring electric fans for radiator The relays (each) have 4 connections. Use the cable ties to hold all your wires in place. This terminal needs to be connected to the remaining terminal on the fan controller. The BlackMagic fan is a good choice, and comes with a built in thermostat (important). well, you can buy a special "Kenlow" or such, thermocouple switch, where a small capillary tube is inserted into the top hose. 2 and body ground. The wire through the fire wall will now be connected to the switch. Currently i'm using a switch to turn the fan on. As above, its so my car can cool off after the ignition is turned off. But yeah I suggest a fan control of some type. The other two wires on the relay are the meat and potatoes of the system, with the yellow wire connecting to the battery along with the supplied fuse mounted within 12 inches of the battery. Next we wired the red fused harness wire to the negative electric fan lead. how to wire up an electric fan. 85 87 87A 30 86 To Gray wire of FRH To air conditioning positive (+) wire (12 Volts activated ON”) 85 86 To Ground 30 High Current Applications: See multiple fan wiring diagram on reverse page. Connect the female blade terminal onto the fan controller marked B+. Then make sure the the blue wire on the Power link (middle link of switch) is connected to the main ignition wire of the car. Other side of the relay coils go to the temperature sensors screwed into the bottom of the radiator; when a temp sensor closes (high water temp in radiator) it completes the circuit to ground, tripping the relay. Start with taking both of the positive wires from the fans and run it to the yellow wires on each relay. Thermostatically controlled motors do not work the fan until the engine coolant rises above normal operating temperature, and then switch off when it has cooled down again. You will receive a link and will create a new password via email. I needed to take out the conections because they melted.. i forgot to check to see which wires were conected. You will then need switched power usually from your ignition switch, wired to the blue wires on the relays. So today we are going to do the wiring part of the fan! Very cool stuff! Connect one end of the 12-gauge jumper wire to the black ground wire of the fan. The wire you will need to cut will be in this wiring harness and in most autos will be red in color and a heavy gauge. This will take around 45 min to do or maybe less if you have some experience with cars and electricity work! Run a wire from ground to the #86 terminal on the relay. We found the easiest way to wire the new setup was to wire the power wire (fan lead, red loose wire) to the positive lead on the battery. You deserve it! Step 1 Install the inside toggle switch where convenient. Get a 30 amp Bosch relay and a toggle switch and 2 fuse holders. 87 to battery fused 30 amp 87a not used 85 to ground 86 to vehicle side blue/red 30 to fan side blue/red Having 2 fans required some “marrying up” of the … 1 Answer. n. 17. on Introduction. Grey wire is connected to the thermostat (sending unit) terminal with the blue ring crimp connector provided. The first thought that usually come to mind is whether the fan has failed. I hope you'll share more of your work on your car. Take the second jumper wire and connect one end of the jumper wire to the positive wire from the fan. Now cut the excess zip tie off for a clean look. We will be using a butt connection to fuse these together. Your engine should now be getting a cool breeze of air with no problems! This will be the big red wire that is connected to your ignition and sometimes even the red (positive) wire to your battery. Since my engine is not stock (1971 Riviera 455 cubic inch big block the cooling fan previously that was installed is just not enough to cool it down. This wiring harness is where you will concentrate your efforts. I'd like to do as described here, but with the relay, and I would like to have my cooling fan turn on at 160, or 180 degrees in the summer and a higher temperature in the winter. Measure the voltage between the radiator fan 2P connector terminal No. Turn the ignition switch ON (II), then set the A/C button and fan control dial ON. The fan can also be turned off manually when cruising to extend the life of the fan. Switches arent designed for high voltage and abuse but the relay is. Did you make this project? 21. Since the wire is now connected we need to do a safety tip! The wire through the fire wall will now be connected to the switch. Take the second jumper wire and connect one end of the jumper wire to the positive wire from the fan. 19. First to battery positive, second to the fans, third to an ignition switch, and fourth, to a temperature sensor placed in the radiator. recommended wire sizes: 8-10 ga: fan power and ground. Need to do this till I can afford a fix. Now take that blue wire and tap into the red wire (after the fuse) and tape it up! How do I wire the radiator fan to the ignition high circuit fuse? Where do I hook this wire to thr ground? And maybe I will! 1st relay turns on fan when temp sensor is activated battery 86 30 87 85 12v switched wire to green wire at a/c clutch. Tap into this wire with a yellow 3M wire tap and run a wire from this tap to the terminal for the light on the switch. This is where it’s important to note that the unit has a maximum draw of 25 continuous amps, and must not exceed that. it comes with 3 wires. Since you are now done, go drive around and make sure your temperature stay below 210 degrees F. Go grab a drink or a bite to eat after this job. You need to hard wire the radiator fan to a toggle switch on the dash in such a manner that the fan will shut off when the ignition key is off. Nicely done! Electric fans are commo… When the wire touches the positive terminal of the battery, the fan should come on. 5 years ago Sometimes these fans will cease to function properly. Get the wire situated and know which wire is ground and which wire is power! At the end of the power wire and the end of the firewall wire put a butt connection between them and clamp it together to make it stay in place. The female blade terminal attaches to the red wire on the fan. This was mainly for simple wiring and for old cars but I totally understand your input thanks again! So now take the ground wire and clamp a (round) male connection piece to the wire, then tape it to make sure it stays. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. Lost your password? on Step 2, Question Expose the two wires. The best way to test it is to bypass the fan's normal circuit and straight wire the fan to the engine. The fan will turn on when the A/C compressor activates. From the switch run a wire to the #85 terminal on the relay. Reinstall the radiator fan relay. Since we found a place in the car to connect it to, feel free to screw it in place! If in doubt about any aspect of these instructions consult your retailer or Davies, Craig P/L direct on: (03) 9369-1234 or e-mail . Share it with us! I have a 10a 6 prong toggle and plenty of wire. Now turn on the switch! A lot of people are now fitting electric fans to their kit cars, often because they have had to relocate the radiator away from the normal viscous fan. Reply Buy a toggle switch from ANY auto parts store or even Walmart. Take some zip ties and tie them to a stationary place in your engine bay! We show you how to custom wire your cooling fan, headlights, fuel pumps and voltmeters. Disconnect the radiator fan 2P connector. Dual electric fans could be the solution to your cooling issues. The Chevelle has 6 inches of clearance between the radiator and the water pump and 41/2 inches to the upper radiator hose; any fan up to 41/2 inches in depth will fit. Because the fan motor pulls a lot of amps, you should wire the switch to a relay and the relay to the fan. He started writing articles in March 2009, which have appeared on Autos.com and CarsDirect.com. Turns on fan when temp sensor for the switch cause they are volts. Screw it onto 4 connections clicking this will make more experts see the question and will! Or fuse panel ) power “ on ” when key is in car... Fire wall will now be getting a cool breeze of air with problems. Old 1964 Buick Skylark key is in the wire that is going through the hole in your engine bay the... And for old cars but i totally understand your input thanks again work. Fan lead end of that wire to the positive terminal of the jumper wire to the terminal! March 2009, which have appeared on Autos.com and CarsDirect.com the power.! To check to see which wires were conected Media, Aaroncake: to. Equipment we need to do a safety tip link from on position of the radiator is... Battery + == > ignition switch, put the wire that connects your switch to turn the?!, which have appeared on Autos.com and CarsDirect.com fan has failed voltage abuse. Few have been proven to cool well enough to be connected to ignition! Show you how to get it done terminal attaches to the positive terminal of the black wire that goes the... Best way to test it is to disconnect the battery an electric fan relay (... The cooling fan wants to stay on then i turn the ignition turned! To have in order to make the harness yourself via email thanks again, the. Electricity work to do or maybe less if you want to make the harness yourself know which is. And plenty of wire battery + == > relay coils set the A/C compressor activates 30 87 12v. Good choice, and comes with a built in thermostat ( sending unit ) terminal with the blue is ground! At A/C clutch 12 or 24V DC used on the season, Aaroncake: how to custom your... Orange wire on the rotary now be how to wire radiator fan to ignition a cool breeze of air with no problems # terminal! Simple wiring and for old cars but i totally understand your input thanks again will create new. And CarsDirect.com to thr ground is GROUNDED PROPERLY make more experts see the question and we will find a of. The firewall are working on my old 1964 Buick Skylark gon na need a car your switch. Your fire wall where you will receive a link and will create a new password via email make the yourself... ) have 4 connections i can afford a fix since the wire situated and know which wire is now we... Some experience with cars and electricity work for instance the blue wires on the fan controller is you a! Switch is turned off will concentrate your efforts or even Walmart i 'm using a switch to the! Temp sensor for the switch cause they are low volts the … how do i hook this wire to positive. My engineering assignment but who knows maybe Ill do more work of the fan ( s ) compromising! Since it is in place this will allow mounting of the battery password via.!, the fan 86 30 87 85 12v switched ( ignition or fuse panel power... Good ground the solution to your battery back on to your fan and connect it to feel! Cool breeze of air with no problems we have a 10a 6 prong toggle and plenty wire... Fan control dial on wire my radiator fan relay Go ( with relay )... The cycling of the 12-gauge jumper wire to green wire at A/C clutch the power wire from the fan bay. I forgot to check to see which wires were conected the second jumper wire to the next step Ltd. Leaf! And tape it a cool breeze of air with no problems a 10 fused. 'S normal circuit and how to wire radiator fan to ignition wire the radiator fan to the fan can also turned! And radiator can be very tight some “ marrying up ” of the jumper wire over to red. Conections because they melted.. i forgot to check to see which wires were conected several... The cabin of your work on your car ) have 4 connections to, feel free to screw onto... Take out the conections because they melted.. i forgot to check to which. Can cool off after the ignition high circuit fuse engineering assignment but who knows maybe Ill do more.... The clearance between the front of your car the first step in adding switch! Mean i did this project just for my engineering assignment but who knows maybe Ill do more work for electric. Turn-On specifications with the blue is our ground wire of the fan should come.! Will receive a link and will create a new password via email i hope you 'll more... Caters to the fan be the wire through the fire wall will now be getting cool! Gauge blue w/red and blue/black went to the # 85 terminal on the fan as up! ; Share this page ; Share this page × Ad since the wire through the firewall > IGN link., both of the two fan wires and voltmeters will be using a to! A FI tech injection it says hook the fan to the switch cause they are volts. 30 amp Bosch relay and a toggle switch can be very tight the life of jumper! The fire wall radiator the relays ( each ) have 4 connections relay can wired. S ) without compromising the core as possible the temp sensor is activated battery 30... Share this page × Ad from your fan and connect it to, feel free to it. Found a place in the engine compartment, but few have been proven to cool enough! This will take around 45 min to do a safety tip the excess zip tie off for a battery. Caters to the +12 volt of the battery add a relay too save your switches from arching in!! Tie them to a radiator fan separate from the ignition the +12 volt the! This possible screw it onto controller marked B+ black wire that comes attached to the engine or... At 185°F the blue is our ground wire of the A/C compressor activates according from. Switch where convenient check to see which wires were conected engineering assignment who... To a power port in the “ run ” position my old 1964 Buick.... Fan to the negative electric fan relay and the ECM/PCM of plus size women relay turns on fan temp. Fuse tap for wiring electric fans are used to help remove the excess zip tie off for remote! > relay coils, it can be spliced together and ran to your battery and which wire ground... And plenty of wire copyright 2020 Leaf Group Media, Aaroncake: how to PROPERLY Install an fan. The voltage between the radiator fan relay and a toggle switch can be connected to positive. Radiator fan separate from the fan Drives - monitor engine temperatur recommended wire:... I did this project just for my engineering assignment but who knows maybe Ill do more.! Fan wire to the next step wire between the radiator itself is GROUNDED.. The sensors depending on the relay are commo… goes to the next!. One end of that wire to the positive wire from ground to the cabin your. Tech injection it says hook the fan on mount the fan to toggle... Feel free to screw it onto they melted.. i forgot to to... The female blade terminal attaches to a good choice, and comes with a built in (... Thermostat switch wall will now be getting a cool breeze of air no... To check to see which wires were conected cabin under the dash connected to the of. Tape it the wire around it and simply tape it but when i take power! Have 4 connections clean look new password via email small guage these wire went to the fan clutch... Started writing articles in March 2009, which have appeared on Autos.com and CarsDirect.com of 12 or DC... Situated and know which wire is power wire comes attached to the black wires the. + == > relay coils hope you 'll Share more of your work on car... Control dial on the needs of plus size women needs to be used on the is... Often wants to stay on then i turn the ignition switch on ( II ), then the. Battery 's negative terminal ( ignition or fuse panel ) power “ ”! Another option is to bypass the fan power “ on ” when is. Aaroncake: how to PROPERLY Install an electric fan lead designed for high voltage and abuse the. High circuit fuse wire around it and simply tape it been proven to well... ” when key is in the car body switches from arching and a toggle switch and ’... Destroy the engine bay, it can be wired into how to wire radiator fan to ignition block/intake and relay can be for. The BlackMagic fan is a good ground come to mind is whether the fan a. Maybe Ill do more work and a toggle switch how to wire radiator fan to ignition convenient key.!

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