i hooked up a light switch between the battery and fan for a temporarry fix. You are looking to see if the PCM sends power to one or both relays to turn on the coolant fans. Faulty Temperature Switch 2. In case it is broken then it means that it does not come on when it is supposed to, therefore, the high-speed fan will have to kick on at a high temperature and will stay on even after parking. If not, check the cooling fan relay and ECT switch, and check for a separated connector or severed wire between the cooling fan relay and ECT switch. Ford Escort ZX2 2002 Ford Escort ZX2, DOHC 4cyl. The sending unit. However, if the cooling fan comes on with the ignition and does not stop when the engine temperature gets low, then it’s a matter of concern and against the functioning of the cooling fan. When turning - Answered by a verified Ford Mechanic. My suggestion would be to check the current draw of the fan with an ammeter to see if it is within specs. The cooling fan runs when the ignition is switched to the off position. 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. Auto shut off mode was active (fuel saving mode). Relay Test. My other Accords would stay on longer and not repeatedly turn off and on so I was concerned. They should cut off after the temperature drops roughly 50 degrees. Power flows from the battery thru fuse #2 (30amp), into a splice and back thru fuse #15 (20amp) This feeds the contacts in the relay (on all the time) The coil side of the relay is as follows. With a jump I was good to go with no problems until I shut it off and the fan kept running. 1,840 satisfied customers. Conditions: Air temperature 30 degrees F. MEMBER. Engine overheats. Turning the key will not start the car or the key has become stuck in the ignition switch. Take the second jumper wire and connect one end of the jumper wire to the positive wire from the fan. The fans come on with the A/C compressor. ignition switch with the key I have a 99 ford escort service engine soon light came on Itook it to auto zone and had it read it came up 02 sensor befor catylatic convertor needed changing changed sensor and light went out 30 to45. The condenser is a second smaller radiator sitting in front of the coolant radiator and. Fan #2 will activate once the vehicle water temperature increases by 10°F. 3. Make sure your engine or transmission is not overheating using a external thermometer if you have one. Use a piece of wire to jump across the two female terminals in the connector. 1998 escort- A/C compressor and the cooling fan will not turn off unless i pull the fuse to reset it 5 Answers. For '00-'03 The fan motor: operates only when the ignition switch is in the RUN position. If your coolant level is low, there is a chance it is pushing air into the cooling system, and the coolant temperature sensor will not read the coolant temperature correctly. You may have two problems. On the 96 ti, there are 2 yellow relays. Faulty Temperature Switch. 1990-1996 COOLANT FAN SWITCH INSTALLATION. Check that the cooling fan stops. and off at 175°F. 4. Step 2: Remove the fuse/relay box cover. Your Chevy’s engine control unit signals the fan when to turn off or keep running. Let us know what engine size your F-150 has so that we can possibly get more information for you. It is true that if the computer in the steering pump goes bad, it can turn on the cooling fan. The fan circuit always has power. A few clues: battery is new and holds charge fine generally. The one that controls the power to the cooling fan is the fan relay. Cross pin 1 and 2 on HP switch fans go to hi but no clutch. As soon as I turn the ignition key both radiator fan start to spin even though the car is cold and not on. It shuts off when I start the car. If the LS is not working, test the terminal 30 for 12V. Ford Master. ChrisA said: If it's running from cold then this suggests the sensor or thermostat -unlikely both - has been "bypassed" either through a wiring problem at the point of connection to one of the units or, one of the units is malfunctioning to allow the current to flow to the fan. This being said it works on the principal as # 1 said, The coolant has to warm to a point that the switch can open to be. If the car has A/C, turn it on which should force the fan on. 6 TDCi. Firstly, you need to check to see if the low-speed fan is broken. Changing the fan motor. When the coolant temperature reaches a certain threshold, and the engine rotates at full rpm, the radiator fan will operate. These cycles could sometimes go on for 20-30 minutes after driving through town on a hot day with a pretty warm engine. (See Diagram #5) 3. My point is that maybe the ECM things the engine is running hot (or that it actually *is* running hot), thereby causing the fans to stay on after you shut the car off. Step 2: Remove the fuse/relay box cover. Here is the wiring diagram, You can use a volt meter or test light to check the inputs and outputs of the CCRM. 3. 4. 0l, Enigine fan runs continuously, A/C runs continuously. The radiator may need a thorough cleaning if the fan is always on when the car air conditioning (AC) is also on. my 97 escort cooling fan and fuel pump come on when the ignition key is turned off. it just keeps running until the battery is drained. . Hey everyone - looking for some suggestions in troubleshoot a cooling fan issue I'm having. Asked by LJW1961 Apr 26, 2014 at 07:39 AM about the 1998 Ford Escort 2 Dr ZX2 Hot Coupe. The coolant sensor tells the computer, which turns on a relay, which turns on the fan. #2 · Jun 13, 2012. I have a 1991 ford escort the radiator fan does not turn on when engine heats up the fan works fine when i powered it - Answered by a verified Ford Mechanic. I then unplugged the connector off the ECT sensor and the voltage went to 4. Fuel pump and cooling fan run with key off Escort Car Forums. 2. The fans will stay on for approximately 3 minutes. it just keeps running until the battery is drained. Did a search and get results about a dpf regeneration on the. Run the A/C keeping the thermometer in the coolant and allow the fan to kick on. Once you reset the codes the fans will operate normally. 2. 200 Million used auto parts instantly searchable. And if a relay fails, you will still have one fan running. After that, you can test it by placing the wire on the battery. 1. One mechanic finally nailed it to generic parts. 92 EX Sedan auto (RBM) - sold after 12 years (140k miles) 03 EX V6 Sedan auto (NBP, then Ford Blue) - traded in after 13 years (135k miles) 16 EX I4 CVT with sensing (KCM. 5 months ago by fitting a new thermostat. Okay my cooling fan wouldn't work. Fan Still Running When A Car Is Off In Ford Focus. 1. read more. hello i have 2 fault codes , p2090 - permanent fault , exhaust variable timing solenoid valve control - circuit open or short to ground/ P0A1A-. Thank you. 25997 posts · Joined 2002. Removed pressure switch and fan shut off. Ford Escort ZX2 2002 Ford Escort ZX2, DOHC 4cyl. Your cooling fan will usually be inactive, but if your car is stationary (with the engine running) or the temperature starts rising, it will kick into action. Cooling fan continued to run. Finally, you’ll need to connect a 12-volt power source to the switch and run a ground wire from the switch to the battery. Other one in water passage for the light. 1 - 24 of 501 results for Cooling Fan Switch Compare Refine. Obviously the engineers have deemed it beneficial to allow the fan to cool a heat soaked radiator even after the engine has been shut down. header tank needing top ups. Instrument fuse panel and circuit breakers. Question type: Maintenance & Repair. Emission. When I have the A/C turned on the fans behind the radiator ( 2 of them ) both cycle on and off. 689 posts · Joined 2005. Water Pump. It is not uncommon for a fan to run on after the engine has been switched off and the vehicle locked and left. It’s often a red wire that’s thick and constantly energized. The three black relays at the center of the IPDM are for cooling fan control. Make sure your a/c switch is off if its on then the fan will come on when the ignition switch is turned on. Can you. 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. Fan resistor. Depending on the ambient temperature in your location, this should be long enough for the coolant temp to get hot and the thermostat to open up. Posted: May 25, 2020. Posted: Oct 21, 2019. The reason being, on most vehicles, is that the cooling fan doubles as a condenser fan. I turned on the a/c with fan speed at 1. . Broken wires will cause the symptoms you listed. Gary. The lower the coolant level, the less effective it’ll be. Repeat process with radiator fan relay. It can also be a faulty part that you just replaced,toyota dealer,s get bad part,s to. Vocational, Technical or Tra. A defective ECU will result in the fan not knowing when to stop running. Engine running hot. A toggle switch can be wired into the system to manually override the cycling of the fan. 1997 Ford Escort Sport: cooling fan runs when the ignition is switched. So the fan will run when the key is turned on and will stop when the ignition key is turned off , this is one of the options for wiring the fan if you choose not to use the thermostat, or a switch. There should be a thermo switch on the radiator, which tells the cooling fan to activate, in conjunction with the cooling temperature sending unit. Maximum Draw of 35 Continuous Amps Per Fan. The wires connected from the fan to the module could wear and crack due to the heat in the engine compartment, along with rough weather conditions. If the fan eventually shuts off after some time (10 minutes?), then it's most likely a problem with the temperature sensor on the back right (USA driver's side) of the engine. When the switch is unplugged the ground will go away and the relay will close, (normally closed relay), (normally closed switch). 3. 25°C (220°F). M37-Current 08 civic lx sold 06 M35x Totaled 2000 S10 sold Ford contour svt-sold 91 caprice-sold 90 & 93 maxima-sold 96 ford escort-sold Location: Largo Fl. Temp rose to 200. When the engine coolant temperature reaches 108 degrees Celsius (due to heat soak), the cooling fan will activate until the coolant temperature drops below 105 degrees Celsius. Toyota Cars & Trucks. Run the engine up to temperature and when you'd expect the fan to cut in,place the leads across the switch terminals with the meter set to. On the other hand, this could also be, the sign of a dead battery. With this mechanism in place, drivers can be sure that their vehicle's engines remain at an optimal level when it comes to heat management and performance. Replacing the electrical portion of the switch is fairly straight forward and typically solves the no start problem immediately. Order the part with stock number in hand. I read in the service manual that the 2004 Malibu Classic with the Ecotec engine will run the cooling fan: "After the vehicle is shut off if the engine coolant temperature at key-off is. jimnolimit said: if the fan constantly stays on (as long as the car is running), i can think of a few things: 1. If the cooling fan does not run, check for power to the cooling fan on the Yellow (Y) wire and for a ground on the Black. Cooling fan continued to run. Since you have a 2 speed fan, then 1/2 of the radiator fan switch can be faulty. Radiator Fan Motor Replacement. The first step in adding a switch to a radiator fan is to disconnect the battery's negative terminal. - The vehicle speed is less than 38 MPH. 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. 99 per vehicle 1-year subscription $39. It looks like the picture below. The fan seems like it's loud and doesn't shut off. Checked the fuses/relays, all good. The engine fan on my 2006 1. Insufficient Coolant. 11. Started with ac compressor and dual fans. When she arrived at her destination she turned the vehicle off. The problem is is when i turn it off, the compressor and the cooling fan continues to run even when. If with the A/C on the engine doesn't overheat then it confirms that the low speed on the fan motor is not working. 1. May 26, 2008. Passenger Compartment Fuse Box. light went. The pontiacs have an issue with the ignition switch, I have a 2001 grand prix that did the same. 1998 Ford Escort Radiator Fan. 20% OFF $100+ use code: CYBER Online, Ship to Home Only. Your Chevy’s engine control unit signals the fan when to turn off or keep running. UK/Ireland Location: Hampshire. Ford Model: Fusion 1. There are two associated relays and they are numbered twelve and thirteen. Radiator Fan stays on. If the fan shuts off, you need a new switch. Decide on best location to install switch and drill hole to accommodate the installation. Driving your car is a good way to get the coolant temp hot. repeatedly. 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. If the problem does not continue, you should replace the fan relay. 2058 posts · Joined 2017. 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. Bedfordshire. The coolant absorbs the heat and goes into the radiator where the heat is blown away. Transmission Fluid in Radiator. 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. If your test proves incoming power, replace the fan motor. The coolant temperature sensor itself is often quite cheap, and you can often find them for around $40 for a quality one. 4L. HOWEVER, the radiator fan does not turn on with the compressor. ECU malfunction. The car coolant is the liquid that removes heat from the radiator. This being said it works on the principal as # 1 said, The coolant has to warm to a point that the switch can open to be able to. My check engine light has been on for a while but was last summer also and seems to go on. Faulty temperature sensor – The temperature sensor detects the engine temperature and sends a signal to the fan to turn it on or off. I was under the impression that if I had kept the ignition on (position 2), as in keeping the key in the position just before the cranking of the engine with the check light's on the dash glowing, the fan would run. 2000 FORD ESCORT: COOLING FAN. Just unplug it, pull out the clip, pull out the sensor, and the seal which sometimes stays stuck. You left the AC on. A sign of the wire link needing replacing is if your radiator fan fails to turn on. check under the hood for a relay center. If it is not, replace it immediately, and this should take care of the problem. ok so my electric radiator fan never kicks on and i think it would be a good idea to just use a switch to turn it on when im running hot. 6 Tdci. Drove vehicle-everything good.