Insert thermostat probe into radiator hose. Find a Repair Shop Current Ad Shopping List. read moreAfter the engine has cooled off and returned below 200 degrees, the fan will turn back off again until it senses that temperatures are rising once more. 4. If the coolant level is low, you need to top up the coolant reservoir. 2008 Volkswagen Jetta 50,000 mi, Visitor. Current: 2008 BMW 320d Msport Auto. 1998 escort- A/C compressor and the cooling fan will not turn off unless i pull the fuse to reset it 5 Answers. There are two associated relays and they are numbered twelve and thirteen. If your temperature gauge still operates when the ignition is switched off, as it does on some cars, you will see. @bhurry turn your AC off and see if the fan still stays on. The thermostat will regulate the coolant to the radiator/fans if it is working properly. Maximum Draw of 35 Continuous Amps Per Fan. Pricing:---Eautorepair. Check fan fuse to make sure it's not blown. The average coolant temperature sensor replacement cost is between $50 and $250, depending on the car model and labor costs. I need help. Car was turned off for 9ish hours previous to this. I have a 1999 Ford Escort SE and the cooling fan will not shut off which of course drained the battery. 4x plastic press stud type things under bumper (gently prise the stud/pin forward on each to release) 2x torx screws at top edge of bumper (1 on each side of the rad) Then unclip the the tabs between the 2 torx screws. Even with the cooling fans running all of the time, the engine thermostat should force the engine to warm up at a normal speed. Question type: Maintenance & Repair. And as you noted, there is a tie-in with the AC system that should at least bring the fans to low speed even if the water temp is low. If the wire stretches, the wire link could be broken, and you’ll need to replace it. I. Remove the connector at the thermal fan switch (do not pull the whole switch out of the radiator). If you turn the "service selector" switch to off (heat/AC/vent switch), then the blower shuts off . Splice and tap a wire onto that wire, confirm its the hot wire for the fans. Still no fan running. Past 7 Days: 391. Consequently, if it does not spin, it is blown. #2 · Jun 13, 2012. When the car comes off the truck at dealer new,there is a fuse under the hood that has to be installed. This part can get really complicated, but the first thing to do is run the A/C with gauges connected to observe the system pressures and monitor the circuit from the PCM to the relays. FWD. Engine continues to turn over with the key out. or on at 195°F. If the problem does not continue, you should replace the fan relay. The engine control computer thinks the engine is running hot. New radiatior, water pump, - Ford Escort question. Started with ac compressor and dual fans. Cooling fan relay (2. Broken wires will cause the symptoms you listed. Many modern cars have electric fans that run when the key is off. I turned on the a/c with fan speed at 1. 3. Fan Still Running When A Car Is Off In Ford Focus. The fan module is located right on top of the fan shroud. The issue could be that it is drawing too much current which could cause the relay contacts to weld together. It must be the 2 wire temp sensor or the ECU. the low speed relay is in the engine compartment fuse box, the other one is mounted near the battery. Unplug that one-wire sensor, then see what the gauge does. fan runs on full for 20 mins or so before battery is drained. Plus, if you don't use it regularly, the rubber seals in the system can dry out and leak as the PAG oil isn't being circulated around the system. Unplug the fan connector, closest to the fan. When the request for fan activation is withdrawn, the fan may not turn OFF until the ignition switch is moved to the OFF position or the vehicle speed exceeds. 9,785 satisfied customers. Air filters are installed in the engine; at times, the air gets. If the coolant temp got higher yet, it would kick on the 2nd fan as well for additional cooling. Passenger Compartment Fuse Box. Thus to run the fan, R12 needs to be on to supply power to the fan module, and the fan module will. 6V; after that I didn't know what else to check because your explanation didn't give a procedure on what to check if the voltage was correct with the connector off. When she came home and turned the car off, the fans came on a moderate speed about 15 minutes later, stayed on for a few minutes and then shut off. After the engine has cooled off and returned below 200 degrees, the fan will turn back off again until it senses that temperatures are rising once more. Low Coolant Level. Fan only works when the A/C is on. The way to determine if the fault is from the fan relay is by replacing it, running it, and determining if the problem persists. Check engine fan relay. Stays On. There are three ways to check for a bad terminal. Firstly, you need to check to see if the low-speed fan is broken. Pull fusible link for fan and it stops, pull fuse for A/C and. The fan would stay on for 3-5 minutes after I shut the motor off, come back on after the radiator heated back up (due to siphoning) and run for a minute or two. My 05 Golf just developed an issue. Disconnect the battery , and take off the wiring terminals to the motor or disconnect the plug. Since the cooling fan plays a factor in air conditioning performance, your air conditioning may not blow cold air. If you get the on at 185 and off at 165 when the coolant got to 185 the fan would come on to assist and this is what would. Ex: 2006 Audi A3 2. If the DMM reading starts heading above 240 degrees Fahrenheit, I begin to suspect there's a problem. - The A/C clutch requested. Disconnect the ECT switch No. the fuse box. Mounting holes were drilled in the bracket and the fan shroud. Bad ECU Unit. Check the coolant temperature with the car stopped. steering column. Here is only some of the equipment we need to have in order to make this possible. Did a search and get results about a dpf regeneration on the. Check for any blown fuses or a tripping breaker. For smaller fans, both fans can be connected to a single relay as shown above, and the proper fuse should be. Pull fusible link for fan and it stops, pull fuse for A/C and. Oct 18, 2012 • 2005 Toyota Tazz 130. The fan circuit always has power. Your fan is either mechanical or electric. 25°C (220°F). SOURCE: Climate control switch does not work in lower modes only in high. You are looking to see if the PCM sends power to one or both relays to turn on the coolant fans. Low Coolant Level. Bad ECU Unit. Step 1: The Equipment. If you have a big and small fan configuration it is in the big fan housing. 2. Often, the problem lies in the temperature sensors. The cooling fan is powered by a relay in the Front Fuse Box, R12. Free the wires from clips or other fixings on the fan shroud or nearby bodywork. Replaced the relay, still turns on when key. The simplest method of wiring an electric fan is to use a relay that is switched on and off by the ignition switch. MSGDUARTE. Did a 25mile trip just now - completely clear road with cruise control at 60mph right to my destination. Front defrost button on. I thought this was odd due to the air temperature. Shortly thereafter, they came on for 5 to 10 seconds and. 3). #3. The gauge should read "hot" or the warning light should come on. However, when the AC pressure switch goes bad, warm air might be all you get. Start with the positive lead from the car battery going to the ignition switch. Make sure your a/c switch is off if its on then the fan will come on when the ignition switch is turned on. At idle with the hood up keep the thermometer in the coolant. The system is operating as designed. read more. This is where you're going to attach the diode. The way to determine if the fault is from the fan relay is by replacing it, running it, and determining if the problem persists. One of the first symptoms of a potential problem with the cooling fan resistor is engine overheating. Posted June 11, 2010. Search Fixya. As Dadu says, this feature is pretty standard across all manufacturers. 05 Golf. 1 connector. You are looking to see if the PCM sends power to one or both relays to turn on the coolant fans. 1. 2003 ford escort zx2 engine cooling fan comes on on all but 1 heater setting and cools engine down so that no warm air comes out. With dual cooling fans, there are two methods for wiring up the relay kit. 200 Million used auto parts instantly searchable. A toggle switch can be wired into the system to manually override the cycling of the fan. If the fans are running when the temperature is not hot, disconnect the Powertrain Control Module and inspect connectors for corrosion and fix or clean and needed. Check if the compressor's clutch has been engaged. It could be oil temp, water temp, water temp correction based on barometric pressure, engine load, etc. Options. i hooked up a light switch between the battery and fan for a temporarry fix. This method works well to cool the vehicle but the drawback is the fan will be running constantly when the ignition is on. Radiator Hose Replacement. Both are inputs into the fan control module (N76) which controls the application of unswitched 12v dc to the fan. Read wiring diagram and operation description and removed both radiator fan relays one at a time, which would shut the fan off. Check for a faulty radiator control module and do a replacement. If the cooling fan resistor fails or has any issues, it can cause power to be cut off from. 4. 4 CYL. The fan motor can be checked by removing it's electrical connector and applying +12 volts and. 257. If you have power to the BLACK/ORANGE wires at the CCRM , (Straight from 40 amp fuse) Then warm the engine up and monitor the ground to the PINK/WHITE wire at the CCRM, You should get a ground signal on that wire at around 205 degrees. Cooling fan not turning on and a/c turning off and on. code 117. 1 - 24 of 501 results for Cooling Fan Switch Compare Refine. Connect a wire from the relay to the fan and then another wire from the switch to the relay. Since the fans turn on when the temp sensor is disconnected, it can't be a fan relay. Read the description of the Taurus where the low speed is used for normal operation when temperature is required but the high speed is activated when. 1. Turn the ignition switch to LOCK (0). Remove the cover from the top of the underhood fuse/relay box. There should be a thermo switch on the radiator, which tells the cooling fan to activate, in conjunction with the cooling temperature sending unit. Hello everyone! I have a 2017 Buick Encore , with about 114k miles on it. Hello there. Popped open the hood, and sure enough the cooler fan was running loudly. Three things to check, the fan motor itself may have failed, the relay that switches the fan on my have failed, the pressure switch/sensor in the AC system may have failed and thus doesn't signal the fan to turn on. Diesels, as has been pointed out, will additionally do this after performing or attempting to perform a DPF regen. Look for a burned wire inside the fuse. When you moved the ignition key to on position, it was waiting for you to start the engine. There are many things that change the Fans meaning causes them to come on , Engine temp , Intake air temp , fuel rail temp etc etc The AC fan turning on comes from the head psi of the AC compressor , if you havent hit the turn on head psi then the AC mode of the fans wont turn on and the high head psi is at 3000+ rpm , and drops off below 3000-The fan running after the ignition is off is just a reaction to the higher temperature of the engine, it is normal for the fan to run after the ignition is off if the engine temperature is too high. The car coolant is the liquid that removes heat from the radiator. ac. A diagnostic code reader can be used to check for fault codes, these readers are sold at auto parts stores. #3. 1,243 satisfied customers. Short circuit of wires to “ground”. 1) With ignition off but blower fan running, if Relay #31 (Under hood, second from firewall) is pulled, blower stops. Engine up to temperature (gauge working). 4- 1 pack of butt connections -10 gauge-. Unplug the sending unit electrical connector and turn the ignition switch On. Temp rose to 200. The radiator fan only turns on when the AC is switched on because there is an issue with either of these components: Thermostatic switch. 3. 2006 Corolla LE , A/C Compressor trips even with A/C off everytime the engine cooling fan comes on if the dash fan is on. As you may know the coolant fan relay turns the fans off and on by receiving information from the coolant temperature sensor at specific temperature thresholds. I resolved this problem about 2. Faulty coolant temperature sensor can also lead to erratic fan behavior, and it may require calibration or replacement to fix the issue. It ensures that the energy-intensive devices only run when needed, usually when the vehicle is immobile. Wiring Testing. Turn The Fan Switch To “Off” And Back To “Auto”: If the. The relay for the cooling fan is part of the CCRM. relays. Step 3. . Brackets were made by cutting two pieces of 3MM steel about 3. I wouldn't worry about it unless it runs for hours. And one more thing,on your model,your fan runs off the head tempeture sensor,in the side of the head. The fan controlling module is also controlled by the ECM. ( Note the position of the terminals, similar to AC fan relay) If both fans work, next to check would be the. The top two relays are the ones we are interested in. Look out for a stuck cooling fan relay. 0L engine only) R10 — Cooling fan 2 relay (2. Ford Escort mk2 – fuse box – instrument panel – USA version.