Radiator fan switch

radiator fan switch Another way to keep your engine cool is to buy a right side R6 fan and mount it on your radiator. And when the radiator doesn't work right, the engine won't be able to cool down quickly. As a general guide, use 12AWG wire with 30A fuses and relays or 10AWG wire with 50A fuses and relays. NOTE: This thermal fan switch must be used with a fan relay. Do you want the fan to switch on and off or do you want to vary the speed of the fan as needed to hold the desired temperature? I've seen others who did the same thing using PWM and MOSFETs to vary the fan speed. 4) on 6/14/06, 161 miles after the extended warranty runs out, I have a major transmission problem. This is a discussion on Radiator Fan Bypass Switch. Also, the gauge doesn't read as if the car is over heating yet last night I opened the rad cap (bad idea) to check if it was even hot and it blew coolant The thermo switch is a mechanical switching device designed to respond to changes in coolant temperature allowing the operation of the electric radiator thermo fans. radiator fan switch vz800 1999-2003 #5 fan assy 17800-48e10 #6 fan 17820-45c00 #16 switch assy radiator fan 17680-48e00 #17 switch assy water temp 34850-10d00 A switch attached to the radiator outlet tank above the radiator lower hose senses engine coolant temperature. I like the Hayden sensor that has a 3/8 NPT male fitting as opposed to the clip on sensor. 0L last week got stuck in traffic running the AC and overheated, boiled coolant out everywhere. Once the coolant temp, reaches 186 degs. The replacement part was easy to locate and purchase on CARiD. The radiator fan is normally activate by a thermo-switch in the bottom of the radiator. The radiator fans are run from the A/C Control Module (Rover YWB100800 Lotus A117M0038F) located on the right front wheel arch liner and accessible through the service panel with the water guard removed. When the coolant reaches a set point it 'switches' the cooling fan on, which blows outside air across the radiator (which cools the coolant). - Car Craft Magazine Other possibilities are that the engine still isn't at 229 degrees to turn on the switch for overheating to cool. If you have problems with the radiator fan, you need to take care of them immediately or you could cause serious damage to your car. Testing your RSX cooling fan The primary RSX cooling fan is connected with a two pin harness. Easy to use parts catalog. Bypassing The Radiator Fan Switch. pull off the fan switch plug (usually just under the drivers side headlight) you will see if it has two or three pins. The other fan Will be the primary radiator cooling fan. Only question is which one to get, the one with a threaded probe or regular probe. To check that the fan is working, listen for it cutting in and out, and watch the temperature gauge. Buy a 2003 Toyota Camry Radiator Fan Assembly at discount prices. buy Adjustable Fan Controller Thermostat online . control motor, rear defogger relay. 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. £8. This fan is controlled by a coolant temperature switch, a relay and fuse. On brass radiators I braze/solder in a bung harvested from an old VW radiator. Electric radiator cooling fans usually switch on when the engine coolant reaches a set temperature. 0L Escape and Tribute are 3-wire type fan motors and testing them requires a slightly different but significant approach not covered by this article (yet). The 3654 2-speed / 2-fan controller is designed for use with our Ultra-Cool® 2-speed fans, but also can be used to stagger operation of two single speed fans. Shrouded Powerpacks. The ECU will make many adjustments based on the information from the engine coolant temperature sensor. Question:. You can also choose from free samples. If the radiator fan operates properly at both speeds, and ground is available at terminal 3 (brown wire), the radiator fan switch is faulty and should be replaced. Wanting to have control of when your radiator fan is on? The UTV INC fan over ride kit will solve all of your needs! Simple to install, even more simple to use. It is drivers side lower left, depending on if you have a/c or not you can have a single 2 pin switch or 2 speed switch which has 3 pins. 1 800 596 0785 Generally, the radiator fan is hooked to a fan relay. . 3. I had this problem before. This is the fan motor that is controlled by the coolant temp thermo-fan switch and not the fan motor that is controlled by the air cond. The radiator fan system in many TR8s is comprised of two electric fans, two thermostatic switches, two fuses, three relays and a pressure switch if you have air conditioning. ) Me and the wife are going on a much needed vacation, and in an emergency need to know how to bypass the thermo fan switch in the event that it fails. Also a failed “AC Our inventory selection includes radiator cooling fans, radiator cooling fan motors, and radiator cooling fan shrouds, along with cooling fan motor relays, temperature switches, and engine coolant temperature sensors to fulfill your Corvette needs. Mishimoto is the world leader in performance cooling products, specializing in aluminum radiators, intercoolers, oil coolers, and silicone hoses. 0L equipped Escape is TEST 4: Testing The Fan Relay. Radiator Fan Switch, Wholesale Various High Quality Radiator Fan Switch Products from Global Radiator Fan Switch Suppliers and Radiator Fan Switch Factory,Importer,Exporter at Alibaba. Those were mostly on import cars in the '70s and '80s. A radiator fan helps in the vehicle's cooling process and draws air into the radiator to prevent the engine from overheating. The radiator fan and condenser fan do not operate in the high speed mode, but operate otherwise. Minimal space between the radiator and engine accessory drive forced the use of a single pusher-type electric fan (barely visible between the radiator wall and core). E. By using this "Fan Trick" both fans turn on and remain on low-speed, keeping the coolant temperatures close to an ideal 194F while hot-lapping. Here we're gonna' bypass the radiator fan switch with a jumper wire and see if the radiator fan motor comes on. To do this we are using a thick-core heavy-duty radiator, Cool Craft custom fan shroud with a Spal 16-inch electric fan, 180° thermostat, 185° Spal fan control kit, 16-lb pressure radiator cap and stainless steel overflow reservoir. I am working on getting the fan switch and conector on a 86 se v6 auto ac car. TEST 3: Bypassing The Radiator Fan Switch . The cooling fan on BMW E60 models is electronic and controlled depending on engine temperature and A/C operation. Choose top quality brands APDI, Action Crash, Dorman, Four Seasons, GPD, Hayden, Spectra Premium, TYC. Only when temperature of the coolant at bottom of radiator is sufficient to turn the switch off to break the circuit does the the fan starts to work. C6 Corvette Fan Control Switch This brand new Plug-And-Play control module installs under the hood, at the fan connector, and is designed to manually control the PWM coolant fan found on the 2005-2009 C6, Z06 and ZR1 Corvette. Radiator Fan Test. The fan relays are nothing but a remote light switch. This is usually noticeable when the temperature gauge is at a high reading and the engine struggles to perform well. I have disconnected the wiring harness to it & wired the fan directly to the battery & the fan runs. The first thing to check is > switch to a good ground, or right to the engine, or try another switch. I think my radiator fan has gone bad, but i'm not sure if it's the fan or the relay switch. If A/C is installed, but not turned on, the A/C Condenser Fan (on the right side of the radiator looking forward) will not activate when the switch is closed. Back to Top. C3 Corvette Parts (1968-82) Radiator Fans Products. Test the relay terminals for power with the ignition key off (use the voltmeter). Automotive electric fans are also better in traffic because they can There were some car models that did indeed use a coolant temperature switch for the radiator fan motor. Remember the White wire at the radiator fan switch is always live battery voltage, when the radiator fan switch is tripped that live is then on the blue wire in that plug and goes upto trip the fan relay, and should still be A Blue wire. Hayden’s digital fan controller incorporates the same pulse width technology used by O. This article shows how to repair a car radiator fan, and how to check a thermostat switch and fan relay. read more about the subject and Suzuki Carry DC51T, DD51T Radiator Cooling Fan Switch Replace your broken Fan Switch with this Factory Replacement. Later I added a switch to avoid popping the hood each time to fiddle with the wires. The ECU can also activate the fan if necessary. Introduction. Corvette Radiator 180 Degree Cooling Fan Switch and Wiring Harness (1982, 1984-95) Regular I have my electric fan wired through a relay, the switch I have is a kill switch to shut off the fan, not turn it on, mine is set up as an always on setup, it doesn't over heat in extreme heat (115 deg and above) and it still comes up to temp in very cold weather (below 0). Dealer stated "found engine cooling fan not working & radiator cap not holding pressure" " replaced fan and radiator cap". There are a number of common problems with radiator fans, and if Find great deals on eBay for Radiator Fan Switch in Vehicle Fans and Fan Parts. The Zirgo ZFSWF temperature control switch-sensor will automatically turn on your electric cooling fan at the preset temperature of 180 degrees Fahrenheit. 1. Auxiliary Fan Manual Override By: Craig Houghtaling The Auxiliary fan is powered by the Coolant Fan Relay, which is controlled by the Radiator Temperature Switch mounted on the lower left side of the radiator, as well as the Air Conditioner if so equipped, plus the Defroster on A/C models. the fan should come on. A. Radiator Fan On/Auto Switch. I want to replace the temperature switch that turns the radiator fan on, but where is it located on the engine? Radiator Fan switch PLEASE NOTE: If you wish to register but do not provide your REAL first AND last (sur) names, location (City), AND correctly answer the User Validation question when you register, your request will be automatically denied. This switch is designed to activate the auxiliary fan at the specified temperatures. Manual fan switches can also be wired up to operate the fan relays so that the fans can be operated at any given time the driver wants (like in staging lanes). I am trying to figure out where is the best place to install my dual electric fan thermostatic switch. Founded in 1959 in Italy, SPAL has been designing, producing and marketing high-performance axial fans and centrifugal blowers for over 30 years. Screws into the bottom of the Radiator: Operates Cooling Fan Add To Cart The sensor at the bottom of the radiator is the fan switch. Auxillary Drive Belt Kit-Auxillary Drive Belt Tensioner-Auxillary Drive Belt Tensioner Lever-Auxillary Drive Belt Tensioner Pulley-Auxillary Drive Belt Vibration Damper The rad fan is constantly wired to power, it goes on and off with a controlled earth, provided through the radiator's rad fan thermo switch. where the radiator fan constantly goes on/gives turning even after i switch off the car, draining my car battery. The radiator fan supply wiring, relays and fuses should be determined by the fan manufactures recommendation. now you can control when your fan comes on and for how long it stays on. The Fan has a Brown wire (Ground) and a power lead brown/red, or red/black. this will mean that u will create a current path when u activate the switch causing the relay to trip and turning the fan on. These spacers allow you to mount the fan as close to the radiator as possible, without damage or the possibility of the fan cutting into your radiator or fins. Radiator fan works fine, coolant temp switch works fine, radiator fan relay works fine, wires are ok. I resolved this problem about 2. This unique controller varies fan speed based on your custom temperature setting giving cooling when needed, not when you don’t. warning. Monitor the engine operation temperature. A faulty switch can lead to the auxiliary fan not activating, causing overheating. The radiator coolant boils and steam comes from radiator cap,if you switch on AC the fans come on,if you disconnect the coolant sensor the fan runsany help will do. It seems so much simpler to switch the relays control inputs, rather than the high current lines to the fan motors. Just to confuse things, the engine starter solenoid gets a piece of the action, too. Read on to find out how to add a switch to a radiator fan. com. Our line of radiator fan switches includes a variety of universal switches and custom switches for hundreds of vehicle applications. 99 to purchase online or in-store. After spending money on fan switches, radiator fan switch relay I had spent about 120. VAT) LAND ROVER Lucas SNB795 radiator fan switch. See Cooling Fan “Water Temperature switch” is located underneath the alternator. 2L 4-CYL 1994 Toyota Celica 1994 ENGINE COOLING Toyota Engine Cooling Fans Celica 2. Every model I can think of since the late '80s uses a temperature sensor, and the Engine Computer is programmed to turn the fan on at a preset temperature. The PCM is supposed to ground the circuit in order to power up the fan, however mine was not. Thinking my radiator fan (actually the thermo-switch) was the problem, I did a quick road fix by splicing two wires to the thermo switch and then simply shorted them together to turn the fan on. 1st fan to the left is the rad that controlled by thermo switch and the second fan is an aux fan and will only ON when AC is ON but as they says you can put a manual switch on it to be able for you to manually ON. Flex-a-lite invented the Flex Fan and holds the patent for the first electric fan for the automotive aftermarket. 99 to $56. If you short the two pins the fan will run (if not it’s the fan itself and you will need a new fan motor). See table for complete operation specifications on each fan controller kit. same problem with 3. Condenser (Radiator) Fan activation + adding sensor to older units On older units, the Condenser (Radiator) Electric Fan Relay and the Compressor clutch are both activated at the same time by the Binary Pressure Switch on the Receiver/Dryer. It works great for keeping your engine at optimal This fan was only wired to be a single speed, and operated from a standard BMW temperature switch mounted in the E36 M3 Evo radiator that I used in the conversion. If the fan switch relay is giving off the appropriate readings and is in working condition, move on to the next step. The fan motors on the 2. aftermarket pusher fan so where is the best location for the fan switch is see the probe ones that just poke into your radiator fins, those seem cheasy Welcome to the Z ! Switch that fuse that you can't tell with another one and that way you will know if it is the fuses. a-lite manual switch, do not connect a ground wire to the switch! Step 9: Use the zip ties provided to secure the wires and prevent them from interfering with fan blades, belts, and pulleys in the engine compartment. By Ting wires, you can overide the switch, but if you forget, the switch comes on normally. I really like the VW rabbit fan switch. radiator probe vs threaded probe for fan controller I'm going to use the HHR fan for my car and I'm looking at a Derale controller from summit to use. Equip cars, trucks & SUVs with Cooling Fan Switch - Radiator from AutoZone. Electric Fans and Relays. After installing the new radiator, we contacted the experts at Hypertech for help with our next problem. A red LED on the SVS shows whether it’s in its tripped state or off. Replace this seal each time it is taken out. push the A/c button and turn the blower fan on 1. This all started the front end of the car was bumped but no apparent damage. I think an 05 R6 and up will work. Also, try testing the sensor that's on the thermostat housing. Just a side note, thought I could cut the wires to the thermal switch on the radiator and run them to a manual switch. To check your radiator fan switch, turn on the ignition, open the car hood, and listen and watch for the radiator fan to engage. According to my wiring diagram in the repair manual I checked everything in the circuit and the only thing not doing it's job was the PCM. However, this device can easily give way especially if your vehicle is of age. Check the fan wire,s for Engine radiator double temperature fan switch, 91/99 degree celsius. Save on Radiator Fan Switches with great deals at Advance Auto Parts. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. system. It comes with the washer and is for every Vanagon. Before you change a car radiator, let the engine cool, then take off the radiator cap. Often though, a vehicle will have only one single engine coolant temperature sensor that sends the information to the ECU, which then controls the radiator fan and gauge or light on the dash. Tech Area. Using the wiring in the link previously posted is the easiest way (and safest) to add manual control of the fans, and with a center-off DPDT switch you still retain the normal PCM control. any suggestions Install the inside toggle switch where convenient. Best Answer: The cooling fan switch is an electrical relay that senses the temperature of the circulating coolant at the motor. We foster an atmosphere of continuous improvement and mutual respect among employees, suppliers and customers. Radiator Fan Adjustable Temp Control Switch This switch lets you manually adjust the operating temp for your radiator fan to switch on anywhere from 180 to 240 degrees. And when you pull the CTS, the ECU turns the fan on using the other relay (A-13x, which is 5th from right). it is easy to test this. This kit includes everything you'll need to hook up to your fan. The dripping is caused by the fluid boiling over into the overflow tank which is then over filling. Discover the best Automotive Replacement Radiator Cooling Fan Switches in Best Sellers. Find the top 100 most popular items in Amazon Automotive Best Sellers. Power goes through the fan, then to the thermo switch that supplies a ground when temp is reached. that its not blowing bubbles while its running indicating the head gasket is blown or the head cracked. 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. :banghead: Lucas SNB791 radiator fan switch. Run it to your battery with an inline fuse and toggle switch. There is a rectangular black When the temperature inside exceeds the switch's rated value, it closes a pair of contacts inside and that in turn sends power through the radiator fan relay (if there is one) and that in turn sends power to the radiator fan. The fan switch is the two pin job on the right hand side of the bike under the fuel tank (Pre-FI bike) screwed in to the silver dish type expansion bit. Once the radiator is drained, remove the hoses to the radiator and the reservoir. Looking for an electric fan option to cool your radiator? The 2-speed Volvo fan and relays have become a popular swap. Unplugging the fan switch should turn the fan on. Is there a quick way to check which it is? I don't want to buy a new fan if it's not the fan and vice versa if it's the relay and ends up not being the relay. NOT !! the bike wont run with that radiator sensor out of the loop The fan speed on the side mounted units is controlled by temperature sensors in the vicinity of the CAC and the radiator and dash AC condenser. This is to replace or repair a radiator fan that is not working. This article applies to the Audi A6 C5 (1998-2004). If fans do not stop, test cooling fan relays and ECT switches. The fan continues to run until the temperature drops enough for the thermo switch to open, and then the fan shuts down. i have a vw polo the other day it over heated took it to garage where they changed the radiator fan switch and the thermostat worked fine for 2weeks then started over heating again felt bottom of radiator it was cold so was the bottom hose but top hose was soft and warm the fan did,nt come on either. Notes: W/o Blade - Motor Only for radiator cooling on models w/ Valeo radiator or Mitsuba fan motor The fan that is used with this motor has 4 blades for this application. Automotive electric fans are also better in traffic because they can Suggested Electric Fan Wiring Diagrams Converting a 12 Volt Switch into a Ground Switch These diagrams show the use of relays, ON/OFF sensors, ON/OFF switches and ON/OFF fan controllers. The twin radiator fans of our 1995 Volkswagen Cabrio were running constantly at low speed unless the electrical fitting was unplugged from the radiator cooling fan switch. 175~185 degree electric fan thermostat relay switch kit, It is a 3/8" pipe thread. This afternoon it developed a problem - the radiator/cooling fan has stayed on for >90mins, completely draining the battery. I already bench tested the radiator fan relay, already saw the T-stat seems to be working fine, the condensor fans are the radiator fans and they turn on fine when the AC blows. When the coolant temperature in the radiator gets up to 85°C (185°F), a thermostat switch on the radiator tells the electric fan on the radiator to come on. When the coolant within the radiator reaches a specified temperature, the sensor activates the fan. See a list of all Lutron fan controls here. The only other thing I can think of is for the passenger side fan, perhaps the A-11x fan relay (engine fusebox, bottom row, 3rd from right) which controls medium speed, doesn't work. Your Online Source for UTV Parts and Accessories. PWR Thermo Switch Switching control is achieved through a bimetal alloy leaf, which deflects with changes in temperature opening and closing a set of contacts. There are three relays used by the fans: Radiator Fan Main Relay, Radiator Fan Relay, and Condenser Fan Relay. Buy online, pick up in-store in 30 minutes. Brass Fan Switch 88C/79C M22 x 1. Audi A6 C5 Radiator Fan Replacement How to Replace Radiator Fan Don't let your engine die of heat. The probe can even be clipped directly to your radiator fins. 2. Altering the fan ON temps can be done through reprogramming the computer or an aftermarket "fan switch" such as sold by SLP and JET . Replace that old worn out and malfunctioning stock fan assembly with a brand new direct fit replacement OPR Electric Radiator Fan to keep your 4. please check your cooling system for proper coolant levels. The fan you need is from a 1990's Volvo 740, 850 or 950 sedan or wagon. Mounts to the back of the radiator, and provides superior cooling in rough conditions. Adding a switch to the radiator fan is an economical way of keeping it cool and in good condition. 90 bucks for a 3 dollar relay, and a 2 dollar switch, wow. Products. Most cooling fans use electric motors that have a moderate to high current draw, and as a result are commonly controlled using relays. From a 10 amp fused 12 volt source run a wire to the toggle switch. 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. Do not rely solely on the ECU switching on the radiator fan - this is using the sensor in the cylinder head, which is the wrong way to switch on the radiator fan. That's why we carry at least 12 aftermarket and original parts ranging from prices between $23. ) Where exactly is it located? b. Extreme In turn that switches on the radiator fan. The fan sensor, or cooling fan control switch by its more popular name, controls the operation of your Cadillac's radiator fan. There is a fan circuit on some models controlled by the ECM. 00 ENGINE COOLING FAN - 2. HELLA THERMOSTATS HELLA THERMOSTATS Allows fast heating of the engine (the thermostat remains closed while the engine is cool). MGB Thermo-fan switch seal 77-80 Item #: URP1027 Fits thru early 1980, up to car number 511290. The only test in the article that applies to the 2. Symptom of a failed Water Temperature switch: When the engine is cool and AC is turned off, the radiator fan will Turn on immediately when the ignition switch is turned passed ACC to the ON position. We offer great products at a fair price and a voice at the other end of the phone if needed. There are 281 radiator fan thermo switch suppliers, mainly located in Asia. Zirgo Cooling Products are designed by top engineers to keep your vehicle cool as a cucumber in the Summer and a Hot Rod in the Winter. a. my check gages light comes on and the temp gage is on 260 i had it checked out and my radiator cooling fan isnt running. When the temperature of the coolant rises to a certain point, the sensor switches on the fan. Remove the electrical connector from the cooling fan thermo switch and apply a fused jumper wire between terminals number 1 and number 2 with the ignition switch in the ON position, with the engine not running. In a radiator fan this activation circuit is usually by a temperature switch or from the PCM. Access is pretty tight here, but it is possible to remove the switch. Shop safely with us online or call 888-844-3393 and buy the quality part your car or truck needs today. Radiator fan switch (temperature switch) located in the lower radiator hose. Hello all, I would like to fit a radiator fan switch to my cooling system and what I would like to know is how many degrees centigrade above the thermostat temperature should the switch operate at and at how many degrees above or below should it cut out at. The fan switch is located on the left hand side of the radiator as you stand facing the engine with the bonnet open. 00. Fixed my radiator fan and was easy to install, you don't need the extra parts if you're using this on a 96-00 Caravan/Town and Country/Voyager, you just plug it in. Engine fan kit specifically suited for racing in extreme conditions, for more air, better cooling and maximum power. An electric radiator fan only starts spinning once the engine reaches a preset operating temperature. 1 per car. I have replaced that switch recently with OEM that I got from Toyota. If they don't spin disconnect the fan relay connector (mounted behind the grill in front of the radiator) and jumper pins 1 and 2 together (orange/red tracer to dark blue/dark green tracer wires). If this is not the exact Engine Cooling Fan Switch you are looking for, or This radiator fan switch arrangement is not adjustable, but is more rugged than other temperature fan switch setups. Electric cooling fans are a great option to an engine mounted fan to free up horsepower and better control engine temperature. With engine coolant temperature below 181°F (83°C), turn ignition switch to ON position (engine off). Thermal Radiator Cooling Fan Switches Take control of your electric fan with one of our adjustable or non-adjustable fan switches. Second possibility is a simple fan switch which screws in to the radiator (or other suitable location in the cooling system). Shop with confidence. A relay is an electrical switch which is activated by another electrical circuit. Hi guys! 2 Questions about the engine (radiator) fan thermo switch. Jumper the Fan, the brown wire is ground, to 12V and ground, and see if the fan runs. Kawasaki Switch, Fan (27010-1317) is used in Radiator assembly for 2000 Kawasaki Mule 2510 4X4 (KAF620-A6), Radiator assembly for 1999 Kawasaki Mule 2510 4X4 (KAF620-A5), Radiator assembly for 2000 Kawasaki Mule 2510 Diesel (KAF950-A1), Radiator assembly for 2004 Kawasaki Mule 3010 4X4 (KAF620-E4) and Radiator assembly for 1998 Kawasaki Mule To tell if your fan switch is working, firstly check which type of fan you have, if it is a single speed or two speed fan. The radiator switch being 2 pin, usually both wires are the same color, one comes from the Fuse box, and the other goes over to the fan. In my case I had a plastic impellar on my pump which the impellar wanst attached to the pump( at idle and low revs the pump functions, but at engine strain and high RPMs it does not turn. If installed as a gounding fan switch, it will burn out. When the coolant temp again falls (and so the voltage rises), the SVS switches the fan off. This car is a 1984 VW Scirocco, but this procedure should be similar on any 1975-1993 Watercooled Volkswagen. START HERE: The Radiator Fan Motor Relay Tests There are four separate tests in this tutorial and each one is designed to take the complete novice through the entire troubleshooting experience in a step-by-step way. 3l yaer 2000 van,just that replacing the coolant sensor,fan relay,thermostat,radiator cap did not fix the problem. With the Engine Cooling Fan by Spectra Premium®. Ensure fans stop. This will allow mounting of the fan(s) without compromising the core of the radiator. > On way to test the switch is to fill a pan with just enough water to cover > the sensor end, attach an ohmmeter to the leads, and boil the water. 98 Explorer 5. 5. This kit is set up t this video shows methods of troubleshooting a radiator fan on a HONDA CIVIC 93'. When coolant temperature is above 190*F (88*C) the switch closes allowing current from the ignition switch to flow through the fan relay to ground activating the relay. Look for signs of corrosion, buildup of dirt, and other indications of wear in these components. I have a '71 TR6. l Check the, radiator' fan motor relay (HI) and condenser fan relay (HI) l Check the engine control module Tags: cooling fan, coupler, cowling, engine coolant, entire system, interval, lubrication system, mounting bolt, radiator, radiator cap, radiator hoses, spanner, thermo download COOLING CIRCUIT INSPECTION Before removing the radiator and draining the engine coolant, inspect the cooling circuit for tightness. Get a 30 amp Bosch relay and a toggle switch and 2 fuse holders. 00 (inc. within the YXZ Lighting, Stereo and Electrical forums, part of the Yamaha YXZ Technical category; Sorry if this is repost of same info. 1988- 1993: The two- speed fan runs on low. please help me i need to know where is the radiator fan relay swich located on a 2000 jeep grand cherokee laredo. The thermo switch in the radiator is normally open; when the coolant reaches the switch's pre-determined temperature (see below), it closes completing the path to ground, which turns the fan on. I tossed my original lower radiator fan shroud out and cut the top part back to where it just covered my radiator. put the key in the ignition and turn it to the on position, the car itself does not have to be running. Run fan 12 volt wire off fan, inside car and hooked up to your toggel switch. This can be useful in several cases. Thankfully, the Element has serviceable fan motors -- meaning that you can remove and replace