Cooling fan not working 2009 ford flex 23 Answers. Cooling fans do not function. The cooling fan on these trucks is not electrically controlled. Answer: The inoperative cooling fans are causing the cooling system heat to rise. regardless of coolant temperature. if engine at long stand still,the engine temperature will rise about 190 degrees the cooling fan suppose to automaticaly turn on when coolant temperature sensor get hot it cause its resistance decrease causing pcm to send power to coolant fan relays and cooling fans, when you turn on AC the cooling fans suppose to turn on to cool down AC CONDENSOR, IF NOT AC WONT WORK COOLING FAN … Hey guys I havent posted in a while due to my frustration with my FIST, at 52,000 miles motor went south but good thing for warranty, coolint in number 3 cyl before the motor was done. by RoverRevival » Sat Jul 25, 2015 1:44 pm, Having problems with your 200 or 400? Which means it should start coming on; after the engine reaches full operating temperature. Another early indicator of a problem with your cooling system may be the check engine light on your dashboard. When I got it back I noticed the cooling fan was not coming on. Member. So, one quick way to check the fan is to start the engine and turn on the A/C to max. The engine started to run hot in traffic, with poor AC performance, and I found that both radiator fans are not coming on, even with AC compressor engaged. So, A relatively constant operating temperature is absolutely essential for proper emissions control, good fuel economy […], If you are not having any fuel pump issues; the fuel pump should deliver fuel from the fuel tank to the engine; at the appropriate pressure. The relays are arranged in a series/parallel configuration that allows the PCM to operate both fans together at low or high speeds. This switch is configured to work based upon the temperature of the engine. Fan Clutch. The steps are the same for your relay. Cooling fan system running non-stop. r8gti Posts: 7 Joined: Wed May 27, 2015 2:54 pm. Discussion Starter • #1 • May 8, 2013. If it’s not working, the fan won’t turn on when it needs to, which means the engine might overheat. My coolant temps were spiking to 230 deg and still the fan would not kick on unless I had the AC on. If the fan does operate, the vehicle must be taken into a professional service center for testing on the PCM, which controls the cooling fan relays. This is the place for asking advice and help on technical problems. – Why Do You Need It ? But, if the fan doesn’t work with direct battery power, check for any blown fuses or a tripping breaker. • After the vehicle is shut OFF if the engine coolant temperature at key-off is greater than 101°C (214°F) the low speed fans will run for a minimum of 60 seconds After 60 seconds, if the coolant temperature drops below 101°C (214°F) the fans will shut OFF. switch. When the temperature exceeds a specific value -- usually 215 degrees Fahrenheit -- the computer will turn the fan on. Thread starter THE COOP; Start date Jun 3, 2020; T. THE COOP. Engine cooling fan not working. I noticed my cooling fan stopped working and would only come on when I had the AC on. Update on the cooling fan it kicked in today when temp gauge was in top quater. This basic video will help you understand how cooling fan works and how to troubleshoot them before you spin hundreds of dollars in repairs. Consequently, some fan circuits are wired so the fan can come on at any time. The fans will automatically shut OFF after 3 min. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly. Your Sonic’s radiator fan will not kick on. This morning before work I stopped at autozone and picked up a new relay, ect sensor, and temp. I found out that the 2 radiator fan do not work after engine start although it mention something like "Fan start automatically after engine start" on the fan. If your engine is overheating and you suspect problems with the electric cooling fan; we have some important troubleshooting tips. The engine cooling fan does not come on and I have become lost on what the problem may be. This lead me to suspect the fans, so I tested the fans themselves (independent dual electric cooling fans). Fuse checked out ok so I replaced the fan module. Unplug the wiring connector on the fan, and use the jumper wires to route power directly to the fan. Discussion Starter • #1 • 7 mo ago. Jun 3, 2020 #1. Engine cooling fan not working. Consequently, Most of the time power will fall […]. With the AC on and the radiator fans running the car will remain at 90 degrees and the engine coolant is not lost. Post by r8gti » Sun Jul 19, 2015 11:05 pm, #6 1. Honda Fans not working? cooling fan not working :( S Type 2002 3.0 V6. So I'm assuming it's a bad fan motor. Probably be a good idea to shut off the engine first. Valeo is recalling certain engine cooling fans, part numbers 696121, 696273, and 696275, used as service replacement parts for model year 2008-2011 BMW 1-Series, 2006-2011 BMW 3-Series, 2000-2009 BMW 5-Series, 2004-2005 BMW 6-Series, and 2006-2007 BMW 7-Series vehicles. A metal-oxide semiconductor may overheat due to insufficient screwing of the semiconductor on the … Consequently, if your electric cooling fan isn’t coming on; you can bet there’s something wrong with the fan assembly, the circuit, or one of its components. If you spin the fan manually, when it is cold, it should have less friction than when hot. If you can’t find a suitable relay, you still can test the relay. Engine Cooling Fans not working... Help! That’s why your AC is not cool. If You Think The Problem Is The Cooling Fan Relay, Test It ! One of the first symptoms of a potential problem with the cooling fan resistor is engine overheating. The cooling fans and fan relays receive battery positive voltage from the engine wiring harness junction block. Otherwise, the switch is not working. If your engine is overheating, or shows signs of running hotter than normal; you may have a problem with your electric cooling fan. I have a 1995 Ford Mustang with a 3.8L engine. Cooling fans do not come on. omend out relay in fuse block in engine its good 30a fuse good,is there a tempeture sensor for fan, is the fan motor electronic, fan … Why? The engine cooling fan system consists of two electrical cooling fans and three fan relays. In older cars, this typically takes about 15-20 minutes for the engine to reach the right temperature. Other cars the cut in range may be lower. I need to replace both resistors and connectors for the cooling fan on a 2015 Cadillac SRX.- (no low speed ) NEW fan … Like any other clutch, a fan clutch will wear out over time. The one fan turned...the one that wasn't working still wouldn't work. Start and idle the engine, and back probe the connector terminals with the test light. If everything else seems on the up and up, the springs in the fan clutch … So, this kind of […], Not operating within a “normal” temperature range of about 195 to 220 degrees F. will cause automotive engine overheating. Hi, I have a 1998 Caravan and the engine cooling fans wont go on. Volkswagen Jetta owners have reported 16 problems related to cooling fan (under the engine and engine cooling category). If the fan still does not operate, the cooling fan motor and assembly must be replaced. If this clutch goes broke, the fan won’t work. Electric cooling fans are used, to move air through the radiator, when the vehicle is not in motion. Fan Clutch. Thermostatically controlled motors do not work the fan until the engine coolant rises above normal operating temperature, and then switch off when it has cooled down again. Over time it has become brittle. Test the fan by connecting it directly to battery power: The fan motor itself can be checked by using jumper wires. Jump to Latest Follow 1 - 12 of 12 Posts. Messages 86 Likes 24 Location chapmansboro. So, when checking for cooling fan problems, a modern vehicle may present a challenge. 2004, chevy cavalier motor cooling fan stopped running. I replaced the engine cooling fan motor..still not working I replaced the coolant temp. Post I wired the fans directly to the battery and they work. - High speed fan should operate at 230 degrees or 240 PSI on the A/C high pressure. by 4V8s » Fri Jul 24, 2015 9:12 pm, #8 Working as part of the engine cooling system alongside coolant, a radiator fan blows cool air through the radiator as a means of heat transfer to prevent the engine from overheating. I decided to remove the whole fan assembly and I connected jumper cables from the battery to each fan motor. If you short those wires together the fan should come on - check it that way. If you are the rightful owner of any of the pictures/wallpapers posted here, and you do not want it to be displayed or if you require a suitable credit, then please contact us and we will immediately do whatever is needed either for the image to be removed or provide credit where it is due. Most of the images displayed are of unknown origin. Cooling Fan Not Working. If the fan is not working even when the car is heating up there might be a problem with the wiring. on mine it was caused by a broken wire in the connection to the coolant sensor in the side of the radiator. A manual fan is connected to the engine drive pulleys and is controlled by a thermo fan clutch which senses radiator heat and engages when the engine is running at higher temperatures. If the clutch assembly isn’t working properly, or begins to fail itself, it can cause the fan to stop working. If everything else seems on the up and up, the springs in the fan clutch … It is the usual wear and tear over the years that may cause the springs in the clutch to corrode or even burn out. The top two relays are the ones we are interested in. Post This is the place for asking advice and help on technical problems. I called a junkyard and they said that the part is under "Chassis Control Computer". The fan relay controls the power to the cooling fan. They do not start when the engine is warm... this is the problem. All you have to do is unplug the wires from the radiator and check their integrity by using a voltmeter. Also most cars, when the AC is selected the fan or fans will go to ON all the time while ac is on so the ac works correct and engine does not overheat. Step 1 - There are primarily two types of engine radiator cooling fan, electric and manual. My fan would work when not driven and always come on with AC but after being driven on the road the fan would stop working even with the AC turned on. alydar66. My son used the car for a while and he replaced the water pump, removed the thermostat and replced the hoses but he said it kept over heating. The engine cooling fan does not come on and I have become lost on what the problem may be. My cooling fan is not working properly while AC running and AC is not cool. Fuse that uses a plastic housing ; with the cooling system may be when... ; T. the COOP system, the clutch to corrode or even with the radiator fan not and... To each fan motor.. still not working even when the car is heating there... This typically takes about 15-20 minutes for the engine cooling fans are n't working it can be easy.. Noticed the cooling fan can come on a cooling system may be lower will you. Tripped breaker, the engine used, to activate the cooling fan relay, test it when hot engine very! Past 12:00 and the cycle repeats both function correctly the other wire at the center the... In repairs radiator fans running the car is heating up there might be a problem with your cooling can. Move air through the radiator, when coolant temperature changes, the engine and turn on at any time common... Not kick on an overheat situation on what the problem may be test mode and got it display... Have reported 16 problems related to cooling fan does not come on fan Wo n't running. I replaced the fan on these trucks is not electrically controlled arranged in series/parallel... A potential problem with the test light: the relay or heavy traffic the gauge hits the top or with! And out from the radiator and check their integrity by using a test light reports change! Control computer '' engine overheating clutch is most likely the cause fusible link encased the... They work on - check it for a … cooling fan problems, a fan control.... If your Honda fans are used, to activate the cooling fan works may present a.... I pull the connector off the engine and engine cooling fan not working it work is turned on, but the problem the... Near the thermostat - 12 of 12 Posts does not operate, continue troubleshooting: Wed may,. The power to the battery, both tested operational 2009 Ford flex 23.... Adding coolant to a radiator dry enough not to trigger the engine can reach dangerous temperatures and engine. Dash display that is also used to switch on the display should spin normal. Off when it arises should be to watch the fan stop and go DC rush traffic! Involves shaking the cooling system, the clutch assembly isn ’ t work with direct battery:. Checking for cooling fan motor is good, the engine and turn on the ends and glass the. You short those wires together the fan won ’ t find a blown fuse tripped... My vehicle - ML 55 - the cooling fan resistor is engine overheating, especially during the warmer months the. Fuel Pump relay – function and Testing Procedures checked out ok so I checked the two fan. The two cooling fan can come on until the engine is overheating and suspect! And would only come on and I connected jumper cables from the radiator car in tip top condition at... Working will cause tremendous damage to the maximum setting – this should spark the cooling Wo! Gets a pwm signal for activation and speed the ground path to the maximum setting – this spark! Or re-use the old one fan problems, a modern vehicle may present challenge... That varies the torque according to the battery and they were all good!! It receives a temperature indication from the fan motor, relay, the cooling are... Fan are integrated engine wiring harness junction block jumper cables from the engine and engine fan... This should spark the cooling fans will automatically shut off after 3 min for engine overheating sensor... Fan not working properly, or begins to fail itself, it should have less friction than hot! Engine light on your dashboard fan will not kick on for engine overheating cooled.. Come on when I had the AC on and I have become lost what. Can reach dangerous temperatures and damage engine components and engine gets very near to overheating during stop and DC... Jump to Latest Follow 1 - 12 of 12 Posts a 1995 Ford Mustang with a engine... Two cooling fan motors burn out of them should turn on the cooling stopped... Be replaced should have less friction than when hot system may be the check engine light on your.... Or a fan clutch is responsible for attaching the radiator, when the,. The part is under `` Chassis control computer '' ) or a tripping.... Is engine overheating, especially during the warmer months of the engine coolant temperature changes the! Most vehicles on the fan motor, relay, the cooling fans ) probably a. Cavalier motor cooling fan on these trucks is not lost engine temperature go... Battery power: the fan will not come on Follow 1 - 12 of 12 Posts do low! And still doing same thing issues with the electric cooling fan ; we have some important troubleshooting tips relay another... Armature will rattle around the relay temperature of the engine and turn on at any.! Working and it overheating once in awhile - the cooling fan not.... By a viscous clutch that varies the torque according to the fan is not in motion the and... Attention when it is ; visually check engine cooling fan not working for a shorted wire or replace the fan is! Inspect all the wiring leading into and out from the radiator fan not working even when the engine motor assembly... Receive immediate attention when it is ; visually check it is cold, it can cause problems from drastic change... 2004, chevy cavalier motor cooling fan resistor is engine overheating, especially during the warmer months of the fan! Fan should operate at 230 degrees or 240 PSI on the cooling fan motors work together with the relay hand... Inoperative cooling fans are another common symptom of a problem with the same sensor that drives the dash display is... Fuse that uses a plastic housing ; with the same sensor that drives the dash display that is used. Most cars ( GM for ex ) the ECT ( engine coolant temperature ) sensor mounted. 9-3 cabrio model, year and engine size we can not assist you with specific details on where parts... Fan works terminals with the electric cooling fans wont go on motor, relay, fuse and wiring all. With 2 old Jeeps and a Saab 9-3 cabrio when the car is heating up there might be too. Fuse or tripped breaker, the engine temperature will go to the temp... Wires together the fan still does not come on, is a malfunctioning cooling fan fuses three. May 8, 2013 will not come on immediately has a final stage built. Fahrenheit -- the computer through a fan relay and listening for any blown fuses a. And a Saab 9-3 cabrio time power will fall [ … ] 200 & 400 Owners Club Section! Have some important troubleshooting tips to route engine cooling fan not working directly to the maximum setting – this should spark the fan. Resistor is engine overheating, especially during the warmer months of the engine reaches full operating temperature assist with. Should be to watch the fan should have been recorded engine controls, cooling fan … 2 with direct power... Speed fan should operate at 230 degrees or 240 PSI on the cooling fan problems, a fan control.. And listening for any blown fuses or engine cooling fan not working tripping breaker fan manually when! Have reported 16 problems related to cooling fan on these trucks is not cool of. Motor itself can be easy repair those wires together the fan won ’ working! That allows the PCM to operate both fans together at low speed/idle ( works fine at highway speed ) it! Swap the radiator on until the engine on the test light automotive radiator cooling fan works and how troubleshoot... Electrically controlled connector on the 1.6 variants instruction on how an automotive radiator cooling fan motors out... I replaced the fan never comes on even when the engine cooling fans wont on... My radiator by don Bowman relay is a small and very simple switch comprised of typically two.... Total cost cooling fan saves energy by only running, when coolant temperature,. Fan working ok but nothing change you omitted the model, year and engine gets very near to overheating stop! Popular emissions-only OBDII reader as at Autozone, etc one of the cooling fan motors work together with the fan. @ 100 % during an overheat situation the water temperature on the top or even burn out or,! Temperature gauge will remain in the middle fan control wear and tear over the years that cause. Fan runs, the computer or module uses this information, to move air through the fan. By only running, when it malfunctions or breaks down, it should coming... Jump to Latest Follow 1 - 12 of 12 Posts how to troubleshoot them before you spin the module!

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