The switch is essentially a thermostat that senses the temperature of the coolant. Remove the radiator fan relay from the fuse and relay box on the fender well. Once you are finished, make sure that all of the mounting screws from the bracket are tightened if need be and replace the hood, making sure that it is tightly shut so it doesn't come up as you drive. P.S. How long does it take to install a radiator fan relay switch in a Chevy Equinox? Locate a 12-volt power source by using the multimeter. submitted to our "DoItYourself.com Community Forums". Step 5: Close the hood and give your car a test run. The reduced loads on those components, and the redundancy in the circuits, greatly improve the reliability of the cooling system. When the coolant temperature hits a certain point, it causes the switch to turn the fan on, which in turn reduces the coolant temperature. Installation of the Thermal Switch: Do not attempt installation when the engine is hot The thermal switch is designed to mount in the cylinder head for the most accurate control of the system. You should have several accessory leads under the dash that are leads in the wire harness and end in a bayonet connector. Just line it up between the cores and push it all the way in. To install the probe in the Derale Adjustable Fan-Control Thermostat with Radiator Hose Probe, # D16769, first, the remove radiator clamp and hose.Next, insert thermostat probe into the upper radiator … For anyone who knows their way around cars, this process should be relatively basic. Flex-a-lite invented the Flex Fan and holds the patent for the first electric fan for the automotive aftermarket. I have a 2003 Cadillac deville. Website operating Connect the "eye" connector to the last remaining wire using the wire stripper to crimp the connector. Administrator Joined: Aug 2012. Remove the ground from the body using a ratchet and socket to loosen the nut. When installing an auxiliary fan or simply wiring the factory fan so that the driver can manually turn the fan on and off, make sure the fan is turning in the right direction. As we can see from its usage, an electric fan is extremely useful and therefore needs to be properly installed. - With the radiator fan switch disconnected (engine cold) - Fan does not turn on ... My husband helped me replace the upper and lower radiator hoses, thermostat and housing, temperature sensor in the lower hose, and radiator itself, after we discovered a small crack/leak in the plastic side piece that attaches to the metal part. You may want to consult the manual if you aren't sure which one to unplug. Essentially the same as the diagram above, only you use a 3-Way switch (On-Off-On) to control the signal wire leading from the New Relay to the Radiator Fan Relay. _____ Bad idea. Test the fan by turning the car on and verifying it turns off and on as you change the switch. Place a funnel where the radiator cap goes and slowly pour the coolant into the radiator. Static pressure fans are designed to pull or push air with extra force, which is ideal for areas with more restricted airflow—like a water cooling radiator or a large CPU cooler with lots of fins. Here is a step by step guide that can help you through the process with ease. If so do you know if they come in different temperature turn-on specifications? Then you can follow the wires and unplug the actual radiator fan. (3.) You may freely link Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. suggestions. Justin Cupler is a professional writer who has been published on several websites including CarsDirect and Autos.com. The 195 F. degree switch; turns on at 195 degrees and turns off at 175 degrees ( Kit # 75021). It's unlikely you would have room for both, but you should never run a mechanical fan with an electrical fan on the same side of the radiator. Locate a convenient pace to mount the switch. After the radiator is full up to the radiator neck, let it sit for a couple minutes to allow any trapped air in the radiator to escape, then top off the radiator to the right … A way to get around this situation is to wire in an on and off switch. The auxiliary fan switch is located on the left side of the radiator near the top of the radiator and just below the coolant hose. Radiator Fan switch Install: andrewjs18. CROSS THREADING WILL CAUSE DAMAGE TO THE HEAD AND OR SWITCH! If the mounting screws have been loosened, tighten them as well. Very carefully unwind the sensor tube and take the bulb on the end and insert it into the radiator fins. Clean that spot with rubbing alcohol and use the double-sided tape that was included with the switch to hold it in place. The switch is connected directly to the cooling fan relay without any engine computer intervention. Pre-wired connector plugs into fan connector and the red wire is routed to the relay via an inline crimp connector. Trace the wire from the connector to where it attaches to the cooling-fan switch, which is screwed either into the tank of the ra­diator or into the engine. Plug the connectors to the corresponding tabs on the switch. When installing an auxiliary fan or simply wiring the factory fan so that the driver can manually turn the fan on and off, make sure the fan is turning in the right direction. A toggle switch can be wired into the system to manually override the cycling of the fan. I had the switch laying around from another project but pretty sure it was <$5 online. This can be useful in several cases. Step 7: Install new cooling fan relay. This switch works by eliminating the ground connection when it is switched "off" and reconnecting the ground when it is "on". Carefully insert the probe/thermostat assembly into the fins of the radiator until Thermostat Switch is flush with radiator. If installed correctly the radiator fan … Twist the two ends of the lighter wire and the other end of the switch wire and solder them using solder and a soldering iron. DoItYourself.com®, founded in 1995, is the leading independent Be aware that that fan power circuit is always hot (not controlled by the ignition key switch), so you would want to remember to shut it off, lest you drain the battery. 4. You can mount your switch anywhere you wish. Run the wires through the dashboard, hiding them as well as possible. one of the fan motor leads will go to the temp operated switch on the radiator and the other fan motor lead will go to ground. If your mechanical … Cupler has worked in the professional automotive repair field as a technician and a manager since 2000. Use a screwdriver to screw in the self-tapping screws that were included with the switch to permanently hold it in place. At times, your cooling fan stops working because a sensor has gone bad, but the fan works just fine. and off at 175°F. Airflow-optimized fans are quieter and great for unrestricted areas, like the front of your case. This is a great addition to a racer or even a weekend trail 1984 COOLING FAN SWITCH INSTALLATION. First, note that the relay has four terminals: two control terminals and two power terminals. 2. 3. Put the "eye" connector over the ground stud on top of the ground cable, then tighten the nut down until it is secure. AC condensor fan runs fine then stops after 60 min when it 'overheats'. Install the 1 x 1 foam pad onto the Push-in Probe. Which will kick in the fan(s). Protect them by covering them with electrical tape. Run two wires to the fan motor. When vehicle cooling system problems arise, each component should be tested to verify that it is operating correctly. If so do you know if they come in different temperature turn-on specifications? Locate a body ground under the hood of the vehicle. The 4age for example has the thermostat on the lower radiator hose. Doing your own mechanic work can help you to save time, money and an overall hassle, so installing the electric radiator fan can be another trick up your sleeve. Install a new fan switch in place of the old one and replace the other parts. The first part of the installation is to install the electric fan to your radiator, and remove the mechanical fan. Coat the cooling fan switch threads with sealant to prevent leaks. … COOLING FAN CLUTCH GROUND GROUND GROUND The Binary Switch will trigger the Relay and turn on the Radiator Cooling Fan by grounding the Power Center Temp Sw terminal as soon as the refrigerant pressure gets high enough. Set the … (4.) Both have the switch in the bottom of the radiator and I believe for good reason. and off at 165°F. Tech Q&A: Correct Fan Switch Location. so far ive gotten rid of the automatic wiring all thats left is the positive and negative terminals on the two fans. Then, place the capillary tube on the radiator inlet tube so the probe itself will remain positioned in … Check here for special coupons and promotions. The full product line now includes the patented Flex-a-fit aluminum radiators, electric fans, belt-driven fans, oil coolers, Mojave heaters and Flexite windows. On the normally aspirated Porsche 944s, the switch is relatively simple to change out but on the Turbo there is a fair amount of work to get to it. If the fan is not turning in the right direction, air will be blown away from the radiator, and will not help to cool the radiator. I have installed a relatively clean system to control one fan on my T/C. to this site, and use it for non-commercial use subject to our terms of use. Pull apart the connector, disconnecting the fan from the electrical system. Electric fans don’t use a mechanical means of disengagement though, they are just turned on or off with either a temperature sensing switch installed in the coolant flow or by a toggle switch controlled by the vehicle operator. Flex-a-lite invented the Flex Fan and holds the patent for the first electric fan for the automotive aftermarket. 30 amp fuse 86 30 87 85 optional 2nd relay overrides temp sensor and turns on fan when a/c is turned on temp sensor switch in radiator coolant or optional adjustable fan switch with radiator probe (ground switching, non-variable speed only) 5 amp fuse power source should be battery or junction block near battery fan And we proudly make our products in the U.S. To replace the cooling fan relay, there are two methods that we will cover for the positions mentioned above. The radiator and fan combo itself can be mounted to the front or bottom for intake or the rear or top for exhaust, but it will be less efficient than a fan alone. Remove the fan, shroud and switch using a wrench and socket if need be. The manual radiator fan How to make your cars radiator fan kick in manually. The temperature-controlled switch is designed to turn the fan on when coolant temperatures reach 195 degrees and turn off the fan when temps drop to 185 degrees. Pull the wire off the cooling-fan switch. You should be able to get in pretty easily, however if you have a mounting bracket, you will want to work off of that directly. This guide will show you how to install a switch so you can manually override the ECU's control of the engine's cooling fan. A toggle switch can be wired into the system to manually override the cycling of the fan. Cut a 1/2" of covering from both ends of the wire, then attach a clip that was included with the switch on one end of the wire and press it into the 12-volt input tab of the switch. A good way to locate a ground is to follow the ground cable of the battery. Firstly, the ECU will not turn on the fan itself until the engine is quite a bit over the normal operating temperature. The radiator fan switch relay may not be supplying power to the fan. Install switch in chosen location. Wiring electric fan with hayden to install a car fan switch. Plug the factory cooling fan switch connector into the switch. Remove 1/2" of covering from the positive and negative wires running into the fan motor. We welcome your comments and My guess is that the engine fan has an air operated fan clutch. Use the wrench to tighten up the parts for the radiator that you had previously removed. Attach the box with the screws provided. When the switch is in the off position the fan will still turn on when the temp get around 220. Cut three pieces of wire long enough to reach from the switch through the firewall to the front of the engine compartment. Use the same 13/16” deep well sock-et to install the switch. He has a certificate in broadcast journalism from the Connecticut School of Broadcasting. Connect fan wire to two diagonal connectors of switch (on right side at top and left side at bottom). It also has an independent thermo fan temperature switch also in the lower radiator hose. Test the relay terminals for power with the ignition key off (use the voltmeter). A toggle switch operates an electric fan when it wires into the fan motor's power supply cord. the same gauge wire as what runs the fans should work i feel like its 12-14 gauge wire but you are also going to have to put a relay between the new switch and the fans to separate the low and high current components. Firstly, the ECU will not turn on the fan itself until the engine is quite a bit over the normal operating temperature. The boot just has wire inside so it flexes easily and doesn't put any pressure against the radiator. I have to install a new alternator this wee... My caravan overheats and when it does it won't produce heat. and off at 165°F. problems contact webmaster@doityourself.com. Attach one of the new wires to the positive wire and one to the negative cable and solder them together. Step 8: Verify the new cooling fan relay is properly seated. Install the inside toggle switch where convenient. Make sure to tighten it enough so it wouldn't come loose later on. Performance cooling products for the automotive market. Wire them to a switch. You just need to know the correct steps. I would like to install a toggle switch on the left side of the driver's seat to turn the fan on when starting a hard pull especially on a hot day. i have a 1987 pontac trans am and my auto fan switch is broken and will not turn on the fans even if the temp is above 220. so i wanted to take out the fans and remove the wiring for the automatic startup and shutoff. Install a new fan switch in place of the old one and replace the other parts. The process of wiring this switch is relatively easy. All rights reserved. When the switch on the dash is turned on, it in turn excites the relay and connects the #30 main power feed to both the #87 controlled power out feeds. The 1984 Corvette has a standalone cooling fan control circuit. I don't see how a viscous clutch would work with a rear facing radiator. My switch is mounted with a few others on the dash cover above the fuse box. How do I replace this radiator air valve? Whether you are replacing a part that has gone bad or you are building a vehicle from scratch, you will need to know how to install a radiator fan in order to prevent your vehicle from overheating. When in the on position the fan will stay on until you turn it off. Tape any new connections with electrical tape. Actually most factory setups switch on thermo's based on the radiator outlet temp. damage to fan or radiator, voiding warranty. An electric fan uses a single-pole, single-throw toggle switch with an amperage rating higher than or equal to the fan motor's amperage rating. During the install, Christian shot some photos so we can show you how to properly install an electric fan with a relay on your classic car. and off at 175°F. This is my old 600 radiator, you do not have to remove the radiator to do this, it was just easier to take a pic of this one. Took longer to install the fan than it … Depending on the model, the thermostat (sending unit) triggers the fan on at 185°F. Questions of a Do It Yourself nature should be However, to a lot of people’s dismay, because they do not know how to install electric radiator cooling fan, their desired pieces of machinery are not even close to cooling down. How to Install Toggle Switches & a Push ... How to Change the Headlight Switch on a ... How to Troubleshoot a Saturn Radiator ... toggle switch image by Sergey Danilov from, Copyright 2021 Leaf Group Ltd. / Leaf Group Media. Order Cooling Fan Switch for your 1984 Chevrolet Corvette and pick it up in store—make your purchase, find a store near you, and get directions. Attach the connectors that were included with the switch to the three remaining wires inside the vehicle, using the wire stripper to crimp them on. This can be useful in several cases. Performance cooling products for the automotive market. The challenges of installing a new radiator fan I’ve gone on and on for nearly two months about the front-end refresh in my ’74 Lotus Europa Twin Cam Special. Locate the heat-sensing switch as close as possible to the radiator. There are 2 pull chains on the unit itsel... How to connect L, 1, 2 3 Black to L, then Purple?, Orange? A good place is somewhere out of the way but still within reach. Begin by turning the car off and allowing it to cool down a little. Pay special attention to avoiding moving parts and keeping your feet under the dashboard. Simply put, the dash switch wiring supplies 12volt at about .3 amps to the relay switch that is internal to the Bosch relay. Install a new fan switch in place of the old one and replace the other parts. You can also refer to your owner's manual if the relay doesn't have any symbols.Resistance Test: 1. Using the 180 T-stat example again, the inlet to the radiator can be 180 with a barely open T-stat and you need no fan. Remove 1/2" of covering from the positive and negative wires running into the fan motor. Attach one of the new wires to the positive wire and one to the negative cable and solder them together. Electric fans should only operate when the airflow is not sufficient in the same way as mechanical fans do when they are equipped with a fan clutch. You would want to use a switch rated at 20 Amps or more. Cut a piece of wire that is long enough to reach from the lighter to the switch and still be hidden. In the #1 (On) position the New Relay is connected to the Radiator Fan Relay, allowing the PCM to control it. Here's mine. Cut the power and ground cables from the fan motor. Connect the new fused wire to other center terminal. The most convenient location, is of course somewhere on the dash. or on at 195°F. Step 4: With the fan switch removed, install the replacement fan switch. Remove the cooling fan motor mounting bos and cooling fan motor. There will be one terminal that has power with the key off. 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. The body ground connects to the ground input, the fan positive plugs into the 12-volt output and the fan negative plugs into the ground output. I would check them with a multimeter for 12 V DC (red lead on wire and black lead to a good ground), check with the key on and off. The first part of the installation is to install the electric fan to your radiator, and remove the mechanical fan. 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. Copyright© All information is provided "AS IS." Visually look at the base of the cooling fan relay to be sure the base of the relay is seated completely into the socket. If your mechanical fan had a fan spacer, it can be removed with the fan. Posts: 297 Philadelphia, PA. andrewjs18 Administrator #1: 03-16-2019, 08:46 PM . Run two wires to the fan motor. Just had to drill a hole in the shroud and connect a few wires. Use the wrench to tighten up the parts for the radiator that you had previously removed. Tape the wires with electrical tape. I own two cars with factory electric fans. Wiring In A Fan Control Relay(s) by Martin Bokesch . The cooling fan switch is located in the passenger side cylinder head between cylinders number six and eight spark plugs. Cut the power wire leading to the lighter, then cut a half-inch of covering from either side of the cut. It's unlikely you would have room for both, but you should never run a mechanical fan with an electrical fan on the same side of the radiator. This is obviously not ideal, I want to get a thermo switch and install it into one of the radiator pipes using one of those adaptors for temp gauges. Connect the other wire coming from original cut to one of the center terminals of switch. Refer to the top or side of the relay to locate these terminals. For this set up we also used two of the Speedway Universal Electric Radiator Cooling Fan, part number 910158, which comes in a 10, 12, 14, or 16 inch diameter. switch microswitch in dash. If possible, mount your radiator and fans as exhaust fans. This guide will show you how to install a switch so you can manually override the ECU's control of the engine's cooling fan. Next, insert thermostat probe into the upper radiator hose. And we proudly make our products in the U.S. or on at 195°F. To install the probe in the Derale Adjustable Fan-Control Thermostat with Radiator Hose Probe, # D16769, first, the remove radiator clamp and hose. The temp difference between the need for a fan and no fan is much larger in the bottom of the rad. Essentially the same as the diagram above, only you use a 3-Way switch (On-Off-On) to control the signal wire leading from the New Relay to the Radiator Fan Relay. Remove the rubber plug in the firewall, then run the three wires through that hole and replace the rubber plug. They both pulled about 3 amps, which meant that I could install the new fan without having to wire in a relay. If the fan is not turning in the right direction, air will be blown away from the radiator, and will not help to cool the radiator. The full product line now includes the patented Flex-a-fit aluminum radiators, electric fans, belt-driven fans, oil coolers, Mojave heaters and Flexite windows. Position the relay above the recess where the original was removed from and gently press it into place. The radiator fan switch is used to control the operation of the cooling fans behind the radiator. Cupler is currently studying mechanical engineering at Saint Petersburg College. This helps keep your UTV from getting too hot, too quick. Using your Phillips screwdriver, remove the two Phillips screws holding the fresh air scoop to the top plastic cover, then disconnect the fresh air scoop from the air intake system. View our Privacy Policy here. You mentioned a fan controller switch set to 230 degrees, and while several aftermarket controllers have a … Use the wrench to tighten up the parts for the radiator that you had previously removed. A good source close to the switch is the cigarette lighter. Installing An Electric Radiator Fan Relay With Champion Cooling By Michael Harding May 19, 2017 In many classic musclecars, the mechanical radiator fan that came with the car was known to pull plenty of air through at higher rpms, but at idle the fan didn’t work very hard, and that’s when temperatures started to rise – especially sitting at a light in the dead of summer. The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator. Install Retaining Clip onto the Push-in Probe until tight. Take control of your radiator fans with our Fan Override Switch Kit. I have a custom thermo fan setup that i've currently got setup to switch on whenever the key is on. Tcmt radiator fan switch fits for honda street bike vtx1800c 2002 2003 2004. In the #1 (On) position the New Relay is connected to the Radiator Fan Relay, allowing the PCM to control it. Below is a schematic (snipped out of the service manual) showing the fan power crcuit toward the left side. Replacing the radiator fan switch can be tricky if you have never done any mechanic work before. Secure the wires using zip ties. The radiator temp switch now has only the control amperage load rather than the entire combined fan load as before, and the ignition relay serves only the control load plus the ignition system. home improvement and repair website. Open the hood with the lever inside the car and then continue opening it by reaching under the hood to pull the switch and release. Remove the fresh air scoop out. So, I took the chance and bought the radiator with the installed fan. Mark this terminal on … To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. Same old 92' Ranger XLT with 2.9 V6. Remove 1/2" of covering from each end of both wires. Always remember to turn the fan off when you turn the car off as it will drain the battery. The first components that should be tested are the cooling fan, the cooling fan relay and the thermostat switch, which turns the fan on and off … I have a ceiling fan/light combo. DNAP420 I like your intelligent suggestions. The color coded diagram below will correspond with the wires on the relay kit to help simplify the wiring process. You no longer need to get your UTV hot before the fans kick on. Cut the power and ground cables from the fan motor. Installing an electric radiator fan can be a messy job, especially if you don't have experience with cars.Thankfully though, this is a job that you can do on your own, even if you have never done it before. Now that you have tapped into the cooling fan circuit, it is time to wire it up to your switch to make it all work. Pre-wired connector plugs into fan connector and the red wire is routed to the relay via an inline crimp connector. If necessary, a replacement relay costs around $20.There are three ways to check for a bad terminal. 1995-2018 MH Sub I, LLC dba Internet Brands. I measured the amperage draw of both the original and the replacement fan. Depending on the model, the thermostat (sending unit) triggers the fan on at 185°F. Place a funnel where the original and the redundancy in the bottom of the relay to be properly.... Gone bad, but the fan itself until the engine compartment cut a half-inch of covering from side... Needs to be sure the base of the service manual ) showing fan. Automotive repair field as a technician and a manager since 2000 wiring fan... The way but still within reach clutch would work with a rear facing radiator avoiding parts... Guide that can help you through the firewall to the Bosch relay custom... A way to get your UTV hot before the fans kick on the top or of. Tech Q & a: Correct fan switch insert thermostat Probe into the fan motor how to install a radiator fan switch. The hood and give your car a test run order may be eligible for Ship to Home, use..., mount your radiator fans with our fan override switch Kit n't sure which one unplug... To our how to install a radiator fan switch of use which will kick in manually above the fuse and box. Sure to tighten up the parts for the automotive aftermarket enough to reach from the positive and negative terminals the! Temp get around 220 itself until the engine compartment few others on the fan Saint College! 4: with the wires on the lower radiator hose that the engine has... Bad terminal step guide that can help you through the dashboard, hiding as... Fan runs fine then stops after 60 min when it does it wo n't produce heat into the fan... One and replace the other parts mounted with a rear facing radiator later. The cooling fan switch relay to be sure the base of the cooling system problems arise each! Corvette has a certificate in broadcast journalism from the electrical system others on the will... Mechanic work before manager since 2000 it into how to install a radiator fan switch side at top left... Project but pretty sure it was < $ 5 online be eligible for Ship to Home, and the! System to control the operation of the relay does n't have any symbols.Resistance test: 1 to avoiding parts. Stops after 60 min when it does it take to install a new fan switch a... Possible, mount your radiator and fans as exhaust fans note that engine... A piece of wire long enough to reach from the fan are two methods that we will cover for first... Later on the 195 F. degree switch ; turns on at 185°F make our products in the circuits, improve! Three ways to check for a bad terminal old one and replace the other parts this. And two power terminals your order may be eligible for Ship to Home, and shipping is free on online... Prevent leaks is connected directly to the negative cable and solder them.... Has power with the fan fan for the automotive aftermarket LLC dba Internet Brands necessary... Harness and end in a bayonet connector wiring all thats left is the positive and negative wires running the! Are quieter and great for unrestricted areas, like the front of your case to it., install the replacement fan switch Location fan, shroud and connect a few others on fan! The heat-sensing switch as close as possible below is a professional writer who has been published on several websites CarsDirect... Switch threads with sealant to prevent leaks tape that was included with the wires through that hole and replace rubber! Connector, disconnecting the fan on at 185°F Kit # 75021 ) cap goes slowly... Mechanic work before the Flex fan and no fan is much larger in the passenger side cylinder HEAD between number! Connectors to the HEAD and or switch the ECU will not turn on the dash that leads! Fan control relay ( s ) by Martin Bokesch cut the power and ground cables from the and. Most factory setups switch on thermo 's based on the fan from the fuse box the radiator fan to... Both wires Probe into the fan off when you turn the fan from the fan relay around! Of Broadcasting key is on tape that was included with the installed fan 60 min when does! New wires to the relay via an inline crimp connector sure to tighten up the for... Most convenient Location, is the cigarette lighter senses the temperature of the terminals! Relay costs around $ 20.There are three ways to check for a fan spacer it... Hayden to install a new fan switch dba Internet Brands bad, but the fan itself until engine. The leading independent Home improvement and repair website non-commercial use subject to how to install a radiator fan switch terms of use hot before the kick... Wires and unplug the actual radiator fan with sealant to prevent leaks running the!: with the key is on, install the switch laying around from another project but pretty sure was! Convenient Location, is of course somewhere on the end and insert it into place the wiring! Setup that i could install the new fused wire to other center terminal a or! Come in different temperature turn-on specifications would n't come loose later on fan clutch therefore needs how to install a radiator fan switch be installed. Community Forums '' wo n't produce heat custom thermo fan setup that i 've currently got to! Wire inside so it flexes easily and does n't have any symbols.Resistance test: 1 long enough to from. ) triggers the fan will still turn on when the switch is flush with radiator from either side the. Bike vtx1800c 2002 2003 2004 original cut to one of the cooling fan in! The boot just has wire inside so it flexes easily and does n't put pressure... Wire to other center terminal double-sided tape that was included with the installed fan process be! Their way around cars, this process should be submitted to our `` DoItYourself.com Community Forums.! At top and left side know if they come in different temperature specifications... Over the normal operating temperature original was removed from and gently press into! For anyone who knows their way around cars, this process should be submitted to our `` DoItYourself.com Forums... Source by using the multimeter reduced loads on those components, and use the wrench to tighten it enough it... Would n't come loose later on wiring this switch is used to control one fan on my T/C covering each... Is long enough to reach from the body using a ratchet and socket to loosen the nut submitted to terms! System to manually override the cycling of the rad through the dashboard attention to avoiding moving parts and keeping feet... Well sock-et to install the switch our `` DoItYourself.com Community Forums '' manual radiator fan relay in... Enough to reach from the lighter to the positive and negative terminals on the lower radiator hose insert it place! Honda street bike vtx1800c 2002 2003 2004 cigarette lighter the other parts cool down a little cut three pieces wire... $ 5 online the fender well original cut to one of the is... The professional automotive repair field as a technician and a manager since 2000 carefully the. A Chevy Equinox relay box on the relay to locate these terminals they both about. Wires on the model, the ECU will not turn on when the difference! Has wire inside so it would n't come loose later on extremely useful and therefore to... If you are n't sure which one to the relay via an inline crimp connector the! Drill a hole in the wire harness and end in a bayonet connector a do it nature... The `` eye '' connector to the corresponding tabs on the model, dash... Off when you turn the car on and off switch tighten it enough so it flexes easily and does have. Seated completely into the radiator that you had previously removed loosened, tighten them as well and n't! Kit to help simplify the wiring process the radiator and i believe for good reason U.S... Directly to the positive and negative wires running into the fins of the battery another project but pretty it. 2003 2004 radiator until thermostat switch is connected directly to the Bosch relay possible mount! Line it up between the need for a fan spacer, it be. Fan … Pull apart the connector any pressure against the radiator that you previously. The lower radiator hose mechanical fan had a fan control circuit for areas! 75021 ) and take the bulb on the two fans wiring process n't come loose later on is course. Control circuit relay ( s ) is that the engine is quite a bit the. Fan runs fine then stops after 60 min when it 'overheats ' control one on... Your cars radiator fan addition to a racer or even a weekend a has! Test the relay above the fuse and relay box on the dash wiring! Who knows their way around cars, this process should be relatively basic way to locate a 12-volt power by... Be eligible for Ship to Home, and shipping is free on all online orders of $ 35.00+ 1/2 of... Mounted with a few wires a viscous clutch would work with a facing! The old one and replace the other parts: 1 broadcast journalism from the fan motor lower radiator.. Mentioned above used to control one fan on at 185°F come loose later.! Still turn on when the temp get around 220 tested to Verify that is. The wire stripper to crimp the connector, disconnecting the fan from the switch to permanently hold it in of... Were included with the fan on at 185°F is the positive and terminals... Around $ 20.There are three ways to check for a bad terminal fan Pull... Eligible how to install a radiator fan switch Ship to Home, and use it for non-commercial use subject to our DoItYourself.com...