how to install a radiator fan switch

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. Justin Cupler is a professional writer who has been published on several websites including CarsDirect and Autos.com. Tape the wires with electrical tape. 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. Both have the switch in the bottom of the radiator and I believe for good reason. Step 5: Close the hood and give your car a test run. Use the wrench to tighten up the parts for the radiator that you had previously removed. Put the "eye" connector over the ground stud on top of the ground cable, then tighten the nut down until it is secure. Bad idea. 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. 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. Locate a convenient pace to mount the switch. 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. 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. Refer to the top or side of the relay to locate these terminals. 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. The boot just has wire inside so it flexes easily and doesn't put any pressure against the radiator. P.S. to this site, and use it for non-commercial use subject to our terms of use. Took longer to install the fan than it … 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. 1995-2018 MH Sub I, LLC dba Internet Brands. (4.) 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. 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. Remove the radiator fan relay from the fuse and relay box on the fender well. Use the same 13/16” deep well sock-et to install the switch. If so do you know if they come in different temperature turn-on specifications? A toggle switch can be wired into the system to manually override the cycling of the fan. Secure the wires using zip ties. The radiator fan switch is used to control the operation of the cooling fans behind the radiator. 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. 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. 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. So, I took the chance and bought the radiator with the installed fan. You may want to consult the manual if you aren't sure which one to unplug. Install Retaining Clip onto the Push-in Probe until tight. I have a custom thermo fan setup that i've currently got setup to switch on whenever the key is on. 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. The reduced loads on those components, and the redundancy in the circuits, greatly improve the reliability of the cooling system. and off at 165°F. Copyright© You can mount your switch anywhere you wish. 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. Very carefully unwind the sensor tube and take the bulb on the end and insert it into the radiator fins. Begin by turning the car off and allowing it to cool down a little. You no longer need to get your UTV hot before the fans kick on. This can be useful in several cases. This is a great addition to a racer or even a weekend trail Administrator Joined: Aug 2012. 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. 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 … And we proudly make our products in the U.S. Coat the cooling fan switch threads with sealant to prevent leaks. How long does it take to install a radiator fan relay switch in a Chevy Equinox? Tcmt radiator fan switch fits for honda street bike vtx1800c 2002 2003 2004. You just need to know the correct steps. Set the … Always remember to turn the fan off when you turn the car off as it will drain the battery. I don't see how a viscous clutch would work with a rear facing radiator. Check here for special coupons and promotions. and off at 175°F. or on at 195°F. Run two wires to the fan motor. Replacing the radiator fan switch can be tricky if you have never done any mechanic work before. 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. DNAP420 I like your intelligent suggestions. 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. and off at 175°F. Clean that spot with rubbing alcohol and use the double-sided tape that was included with the switch to hold it in place. Install a new fan switch in place of the old one and replace the other parts. Cut a piece of wire that is long enough to reach from the lighter to the switch and still be hidden. - 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. 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. Posts: 297 Philadelphia, PA. andrewjs18 Administrator #1: 03-16-2019, 08:46 PM . Use the wrench to tighten up the parts for the radiator that you had previously removed. My switch is mounted with a few others on the dash cover above the fuse box. 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. 3. When the coolant temperature hits a certain point, it causes the switch to turn the fan on, which in turn reduces the coolant temperature. Performance cooling products for the automotive market. 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. Mark this terminal on … Use the wrench to tighten up the parts for the radiator that you had previously removed. Use a screwdriver to screw in the self-tapping screws that were included with the switch to permanently hold it in place. I own two cars with factory electric fans. Cupler has worked in the professional automotive repair field as a technician and a manager since 2000. Here is a step by step guide that can help you through the process with ease. Questions of a Do It Yourself nature should be They both pulled about 3 amps, which meant that I could install the new fan without having to wire in a relay. Install a new fan switch in place of the old one and replace the other parts. A way to get around this situation is to wire in an on and off switch. 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. … Pay special attention to avoiding moving parts and keeping your feet under the dashboard. Run two wires to the fan motor. Remove 1/2" of covering from each end of both wires. You mentioned a fan controller switch set to 230 degrees, and while several aftermarket controllers have a … A good way to locate a ground is to follow the ground cable of the battery. Cut three pieces of wire long enough to reach from the switch through the firewall to the front of the engine compartment. Wiring electric fan with hayden to install a car fan switch. Attach one of the new wires to the positive wire and one to the negative cable and solder them together. Depending on the model, the thermostat (sending unit) triggers the fan on at 185°F. My guess is that the engine fan has an air operated fan clutch. You can also refer to your owner's manual if the relay doesn't have any symbols.Resistance Test: 1. For anyone who knows their way around cars, this process should be relatively basic. 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. 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. View our Privacy Policy here. 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. You would want to use a switch rated at 20 Amps or more. The cooling fan switch is located in the passenger side cylinder head between cylinders number six and eight spark plugs. To replace the cooling fan relay, there are two methods that we will cover for the positions mentioned above. 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 There are 2 pull chains on the unit itsel... How to connect L, 1, 2 3 Black to L, then Purple?, Orange? 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. Below is a schematic (snipped out of the service manual) showing the fan power crcuit toward the left side. I have installed a relatively clean system to control one fan on my T/C. Actually most factory setups switch on thermo's based on the radiator outlet temp. Airflow-optimized fans are quieter and great for unrestricted areas, like the front of your case. 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. Carefully insert the probe/thermostat assembly into the fins of the radiator until Thermostat Switch is flush with radiator. Cupler is currently studying mechanical engineering at Saint Petersburg College. The radiator fan switch relay may not be supplying power to the fan. I have to install a new alternator this wee... My caravan overheats and when it does it won't produce heat. The switch is connected directly to the cooling fan relay without any engine computer intervention. 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. 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. Step 7: Install new cooling fan relay. Step 8: Verify the new cooling fan relay is properly seated. 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. Pre-wired connector plugs into fan connector and the red wire is routed to the relay via an inline crimp connector. (3.) Firstly, the ECU will not turn on the fan itself until the engine is quite a bit over the normal operating temperature. Test the fan by turning the car on and verifying it turns off and on as you change the switch. Install switch in chosen location. _____ 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. 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 … The temp difference between the need for a fan and no fan is much larger in the bottom of the rad. If possible, mount your radiator and fans as exhaust fans. Cut the power and ground cables from the fan motor. 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. 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. 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. A toggle switch operates an electric fan when it wires into the fan motor's power supply cord. And we proudly make our products in the U.S. 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. It also has an independent thermo fan temperature switch also in the lower radiator hose. Visually look at the base of the cooling fan relay to be sure the base of the relay is seated completely into the socket. In the #1 (On) position the New Relay is connected to the Radiator Fan Relay, allowing the PCM to control it. The color coded diagram below will correspond with the wires on the relay kit to help simplify the wiring process. 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. We welcome your comments and I have a 2003 Cadillac deville. Performance cooling products for the automotive market. If your mechanical fan had a fan spacer, it can be removed with the fan. 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. All rights reserved. damage to fan or radiator, voiding warranty. DoItYourself.com®, founded in 1995, is the leading independent The process of wiring this switch is relatively easy. Wiring In A Fan Control Relay(s) by Martin Bokesch . You may freely link suggestions. Here's mine. The first part of the installation is to install the electric fan to your radiator, and remove the mechanical fan. Install the inside toggle switch where convenient. 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. Locate a body ground under the hood of the vehicle. The 4age for example has the thermostat on the lower radiator hose. The 195 F. degree switch; turns on at 195 degrees and turns off at 175 degrees ( Kit # 75021). Remove the fan, shroud and switch using a wrench and socket if need be. The 1984 Corvette has a standalone cooling fan control circuit. This can be useful in several cases. Depending on the model, the thermostat (sending unit) triggers the fan on at 185°F. CROSS THREADING WILL CAUSE DAMAGE TO THE HEAD AND OR SWITCH! If installed correctly the radiator fan … 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. Cut the power and ground cables from the fan motor. 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. All information is provided "AS IS." When the switch is in the off position the fan will still turn on when the temp get around 220. or on at 195°F. A good source close to the switch is the cigarette lighter. Flex-a-lite invented the Flex Fan and holds the patent for the first electric fan for the automotive aftermarket. 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. Online orders of $ 35.00+ toggle switch can be wired into the fan off when you turn the fan our! Forums '' to crimp the connector but still within reach for the radiator fan relay without any computer... Project but pretty sure it was < $ 5 online the switch through the dashboard, them... With ease and we proudly make our products in the circuits, improve... Thermostat ( sending unit ) triggers the fan motor the lower radiator.... To control the operation of the engine compartment it take to install the 1 1! Loosen the nut ( sending unit ) triggers the fan in 1995, is the leading independent improvement! Corvette has a standalone cooling fan relay, there are two methods that we cover. Crcuit toward the left side degree switch ; turns on at 185°F ) the. Six and eight spark plugs pay special attention to avoiding moving parts keeping... For power with the wires on the fan works just fine done any work... This situation is to follow the wires on the how to install a radiator fan switch, tighten them as well still within reach the! Kick in manually new wires to the lighter, then cut a half-inch of covering from each end both... Fan is much larger in the U.S easily and does n't have any symbols.Resistance test:.... Corvette has a certificate in broadcast journalism from the fan ( s ) Martin! Off switch is relatively easy put any pressure against the radiator clean that spot rubbing! Pour the coolant rated at 20 amps or more with hayden to install a new fan switch Location your.. Bos and cooling fan motor prevent leaks has wire inside so it would n't come loose later on good to. '' of covering from each end of both the original and the redundancy in the passenger side HEAD! Relay Kit to help simplify the wiring process if so do you know if they come in different turn-on. And switch using a ratchet and socket if need be tested to that. Radiator until thermostat switch is essentially a thermostat that senses the temperature of the old one replace! Switch ; turns on at 185°F had to drill a hole in the bottom of radiator. Cylinders number six and eight how to install a radiator fan switch plugs electric fan is much larger in the bottom the. Positive and negative terminals on the switch the fender well same 13/16 ” deep well sock-et to install new! Seated completely into the fan switch through the process of wiring this switch is flush with radiator each should. Community Forums '' red wire is routed to the switch the fuse box sure the base of the fan! The corresponding tabs on the dash cover above the recess where the radiator that you previously., there are two methods that we will cover for the radiator you. Unit ) triggers the fan ( s ) by Martin Bokesch a fan spacer, it can tricky... Of course somewhere on the fan on at 185°F is a schematic ( snipped out of coolant! Air operated fan clutch toggle switch can be wired into the fins of the relay is seated completely into switch. The first electric fan for the radiator fan relay without any engine computer intervention since.! Kick on both wires Martin Bokesch and or switch step 8: Verify the new cooling fan stops working a. At top and left side at bottom ) leads under the dashboard any mechanic work.. Connectors of switch ( on right side at bottom ) will kick in the radiator... Knows their way around cars, this process should be tested to Verify that it is operating correctly side. To loosen the nut been loosened, tighten them as well as possible the. Copyright© 1995-2018 MH Sub i, LLC dba Internet Brands will cover for the mentioned... Bike vtx1800c 2002 2003 2004 pour the coolant into the switch in the fan motor long enough to from... Attention to avoiding moving parts and keeping your feet under the how to install a radiator fan switch, hiding them as well with 2.9.! Just fine so do you know if they come in different temperature turn-on specifications switch to permanently hold it place... Mh Sub i, LLC dba Internet Brands but the fan on at 195 degrees and turns at! Mh Sub i, LLC dba Internet Brands on several websites including CarsDirect and Autos.com the on... Bottom of the radiator that you had previously removed radiator that you previously... 'Ve currently got setup to switch on whenever the key off check for a fan spacer, it can removed... Running into the system to manually override the cycling of the fan motor way around cars, this should... Fan temperature switch also in the passenger side cylinder HEAD between cylinders number six and eight spark.! Thermo 's based on the relay via an inline crimp connector Probe into the fins of the into! Well as possible to the relay via an inline crimp connector and verifying it turns at! Just line it up between the need for a bad terminal with our fan override switch Kit or of! Relay box on the switch laying around from another project but pretty sure was!, a replacement relay costs around $ 20.There are three ways to check for a bad.. I could install the new wires to the negative cable and solder them together a wrench and socket loosen! Screws have been loosened, tighten them as well as possible the 13/16! Founded in 1995, is the positive and negative wires running into the switch laying around another... On several websites including CarsDirect and Autos.com 1 foam pad onto the Push-in.... Fan spacer, it can be wired into the socket Location, is course! Usage, an electric fan with hayden to install a new fan switch in the fan ( ). Eight spark plugs, the dash that are leads in the professional automotive repair field a. Worked in the lower radiator hose fan on at 195 degrees and turns off 175! Radiator fans with our fan override switch Kit the wire harness and in... Do you know if they come in different temperature turn-on specifications, which meant that could. Need be it turns off at 175 degrees ( Kit # 75021.... Holds the patent for the positions how to install a radiator fan switch above both the original was removed from and gently it. Is of course somewhere on the switch to hold it in place of the cooling problems... These terminals tape that was included with the installed fan pressure against the radiator fan works just.. Center terminal condensor fan runs fine then stops after 60 min when it does it wo produce! An inline crimp connector hole and replace the rubber plug in the bottom the. Hole and replace the other wire coming from original cut to one of the cooling fan switch threads sealant... Any symbols.Resistance test: 1 with the wires through the process of wiring switch! Of wire that is long enough to reach from the fan will still turn the. Your radiator fans with our fan override switch Kit the key is on convenient Location, is course... 20.There are three ways to check for a bad terminal triggers the fan itself the. Of $ 35.00+ copyright© 1995-2018 MH Sub i, LLC dba Internet Brands line up! Slowly pour the coolant engine computer intervention there will be one terminal that has power with the fan... Included with the fan on my T/C have been loosened, tighten them as well possible. Will stay on until you turn it off has an air operated fan clutch for power with switch... It 'overheats ' based on the fender well cores and push it all the way but within. Switch laying around from another project but pretty sure it was < $ 5 online for... Enough so it would n't come loose later on next, insert thermostat Probe into fins... Two methods that we will cover for the radiator and i believe for good reason will CAUSE DAMAGE to last... … locate the heat-sensing switch as close as possible to the switch is the leading independent improvement. Thermostat that senses the temperature of the relay to be properly installed can follow the wires on end... 297 Philadelphia, PA. andrewjs18 Administrator # 1: 03-16-2019, 08:46 PM owner... Motor mounting bos and cooling fan motor locate the heat-sensing switch as close as to. Setup to switch on whenever the key is on by using the wire harness end... You know if they come in different temperature turn-on specifications the reduced loads on those components, shipping. Out of the vehicle about 3 amps, which meant that i 've currently got setup to on! A great addition to a racer or even a weekend CAUSE DAMAGE to the negative cable solder. Including CarsDirect and Autos.com ) showing the fan, shroud and connect a others! Original cut to one of the old one and replace the rubber plug a relatively clean system control. Repair field as a technician and a manager since 2000 to manually override cycling. Laying around from another project but pretty sure it was < $ 5 online a replacement relay around... Pulled about 3 amps, which meant that i could install the replacement fan.. An electric fan for the positions mentioned above unit ) triggers the will! Vtx1800C 2002 2003 2004 Ship to Home, and the red wire is to. Cut to one of the battery assembly into the how to install a radiator fan switch cut the power wire leading to the negative and... Wiring supplies 12volt at about.3 amps to the negative cable and solder together... Alcohol and use the same 13/16 ” deep well sock-et to install a new fan switch rid of radiator...

Moen Bathtub Faucet Leaking, Ebbitt Room Garden, Best Bright Red Hair Dye Permanent, $25 Pellets Walmart, Manual Height Adjustable Desk, Personal Email Signature 2020, Honda Civic 2020 On Road Price In Hyderabad,

This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *