If the motor fails the blades will not be. Now with your problem: Fan continuosly stays on after engine shuts off. A stuck closed relay can cause (the cooling fans to keep running even when the engine is offline), but some vehicles may run the fans by design after the engine has been shut down. Heyoteyo. #10 · Sep 23, 2012. All cars need a new Powermaster 80 amps alternator and bigger wiring. 50] On Southern, hot, humid, high 90F degree days - or higher - my fan stays on for a while after shutting the engine off. 3. 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 be. or it may have two sensors that work like the relays and inturn will have one relay per fan. I changed all 3 fan relays and temp. The radiator and condenser are BRAND NEW. Your radiator fan relay is a two stage (speed) relay. We isolated the fan power supply and the problem went away. If you have a blown head gasket, bubbling noises can be a concern either while driving or after the vehicle has been shut off. Radiator fan won't shut off. There was an ambient temp sensor I believe added to the circuit for activation. Recently I have noticed the engine fan (mounted at front of the car) continues to run for several minutes after I shut the car off. Continuity disappe. Here are a few things to check if your F-150’s fan won’t shut off: 1. The relay, however, has direct power to one side, the same as a light switch. It is the inner fan blower for the cabin that is my concern. Eight cylinder engines may idle around 600. Make sure engine is. all 3 relays (one Fan and three speeds) can provoke Fan running after car is Off. A bad one can easily cause a misfire or poor engine performance. You have to find out if the HP pump gets 12V when you cycle the key. If you turn the "service selector" switch to off (heat/AC/vent switch), then the blower shuts off . Average failure mileage is 64,200 miles. . >. OIL LIFE should change to 100%. Your Chevy’s engine control unit signals the fan when to turn off or keep running. When a thermostat fails it will either open too fast or stay partially closed, both failures are not. It also lubricates certain moving parts. The Ford F150 trucks are equipped with an auxiliary fan which is designed to engage and keep running until the engine temperature drops down safe operational degrees. fan. Low Coolant Level. 1995 ford escort lx 1. Maybe the fuel pump relay, or loose connections to the pump. 99% cooling fans cycle on/off between thermostat open temp eg 180f and [modern car ] 212 f. Check. That keeps all the circulation pumps going and lets them carry excess heat away. Our Chevy Cruze is a 2014 with the 1. I thought maybe this was caused by a bad relay, so I replaced the aux fan relay, but it still runs. Offer applies to FedEx standard shipping only, up. Mark helpful. 1) With ignition off but blower fan running, if Relay #31 (Under hood, second from firewall) is pulled, blower stops. The consumer stated a warning light in the shape of a wrench appeared on the dashboard. (only when the sensor is failing). I have a 2017 ford escape an when I turn off my car I still. If the fan doesn’t stop running, plug that sensor back in and unplug the coolant temp sensor on the thermostat housing. OPTIONAL DIODE PN: IN5408 Make sure the diode band is facing toward the fan or relay and away from ground. You need to check your coolant level and engine temp, if either is not where it should be then you need to fix that. - 2009-2014 Ford F-150. radiator fan won't shut off after pulling in the garage & shutting off the car. In most car models, the radiator fan should start when the coolant temp. Intermittently the fan keeps running On for a couple of times. Running in the summerheat rush hour is absolutely. The AC is OFF. 2012ff Discussion starter. Though you can hear the fan/sucking air coming from the base of the windshield- where the air inlet is. The ECM is not reading any valid temperature. read more. Consequently, the temperature sensor indicates the need for the engine control unit (ECU) to activate the fan to cool the engine. The aluminum headed engine had a safety system to keep the damaging temps down after shutting the car off as engine temps will continue to rise for maybe 15 minutes . So car makers switched to pulse width modulation (PWM) to control the blower fan speeds. and the electric fan can run up to 11 minutes after shut down. any help would be appreciated. On 2/16/2010 at 5:25 AM, wijcc said: I had this problem before. , San Jose, CA, US. That is mostly old news. The. #4. I then reinsert the key open the ignition and the fan stop. Have driven it numerous times but yesterday the engine cooling fans ran for several minutes after shutting down. The platform was shared with the Mercury Lynx, and eventually the Mazda 323 in 1987. Discussion in ' The Hokey Ass Message Board ' started by Roadsir, Aug 13, 2017 . If I set it to 80°C (176°F), the electric fan would always be ON after 6 minutes. To stop a cooling fan that has been on for too long, first, you should try putting the key back in the ignition, start the car and turn it off again. Problem sorted! But why didnt Ford check this on their annual service and why dont the receptionists have some knowledge of common complaints? Technical Electrical problem: Electric fan is causing a slow engine shut off. If the relay fails to click, move the jumper wires to the second set of terminals in the event the wrong terminals were being used. The coolant only came out of the overflow and radiator seems fine. Doing that is not safe on the expressway driving at high speeds. I am surprised that there have not been fatalities with this defect. I have a 1986 ford econoline 350 jamboree motorhome. I turned my 2017 Ford escape off and a fan continues to run. 1403 Answers. 6. The electric fan does not work: the electric fan might be damaged. The car coolant is the liquid that removes heat from the radiator. A bad one can easily cause a misfire or poor engine performance. 2016 Camaro 3. Originally offered with a 1. When all of the gauges or warning lights in your car stop working at once, the problem is something that all of the gauges and lights share in common. It may be defective and incorrect. With a jump I was good to go with no problems until I shut it off and the fan kept running. So I have a 2013 Q7 TDI. In most car models, the radiator fan should start when the coolant temp sensor is disconnected, and the car is running. This has never happened. When she arrived at her destination she turned the vehicle off. An ignition relay costs $5 to $50, and labor costs $10 to $50. It might go on and off a few times on a hot day after the engine is shut off. Continue. Increased emissions: If the sensor sends a faulty “cold” reading, the engine will run rich. Related Ford Questions. I pulled into the garage this morning and shut the car off, I noticed a fan running pretty loud from the front engine area, car is still pretty new so no big. Protects relay from arcing damage due to fan spinning after shut-off. Press "rest" switch - button lights, fan runs at higher speed. Leaking Water Pump. Your Chevy’s engine control unit signals the fan when to turn off or keep running. When the engine is shut down, if the ECU deems necessary, it will keep the turbo cooling circuit running along with the radiator fan to cool the turbo down. Most four and six cylinder engines should idle around 850 to 900 RPM. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. This can save a customer hundreds of dollars for a complete wire harness and the labor to install it. It’s really a simple concept: the blower motor controller pulses either the power or the ground circuit on and off depending on which fan setting you choose. WinterSzturm. UK/Ireland Location: Fife. It should stop of its own accord after a couple of minutes. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. 07. Maybe your Ody needs some cooling system attention. The pump failed during a recent drive and engine went into a fail safe. Power-flush the block by removing the drain plugs at the right front and left rear. If CHANGE ENGINE OIL lamp flashes for five seconds, this indicates system has reset. (thermostat, radiator fins, coolant level, etc)Suspect the fuel pump relay. For the water-flow issue, verify that the thermostat is opening by feeling the lower radiator hose and making sure it’s hot when the vehicle is warmed up. fan runs for about 1 to 10 mins after engine start, before switching off and coming back again when car is on the road. UK/Ireland Location: Fife. My hus. The cooling fan turning on is dependent on the coolant temp when the car is shut down, if above a certain temp in the radiator, it will run until it comes down and then shut off. The fan runs nearly every time the engine is shut off. SOURCE: radiator fan won't run unless air conditioner is. 148 posts · Joined 2005. After reading this Thread, I started my Mustang (first start of the day) with the A/C 'off'. Warning lights on the dash may also come on if the relay is not working properly. 4. 56 people found this helpful. The fan comes on at 170 degrees, shuts off at a predetermined temp and comes on when the Vintage Air compressor kicks in. 2009 - 2014 Ford F150 - Electric radiator fan won't shut off when vehicle is running. Loose radiator cap. These cars are designed to run fans after engine shut down to help in cooling them down, so one relay runs normal operation and the other runs the key off operation. The coolant fan kept running after I turned the car off and it ran the battery down. every now and then truck shuts off while driving. 9L trucks with a manual transmission hold the clutch pedal in during this test. Associates. have a big enough radiator in good condition so the system is not heavily fan dependant. The worst complaints are engine problems. 2nd rule is. ] Push the new control into the opening in the dash, it will click into place. Resonantly bought a 2013 f150 5. The thermostat regulates the coolant flow through the engine and helps maintain optimal engine temperature. If the cooling fan motors burn out or fail, the cooling fans will be disabled. If the cooling fan doesn't turn on, it will lead to overheating. Average failure mileage is 81,000 miles. Find it and check for bad wires then check power. I have owned my 2012 Ford Focus for a little over a year, and in that time I haven’t had any problems, but recently my cooling fan is turning on as soon as I open either the driver or passenger side doors. The crankshaft sensor is necessary for your car engine to run on most car models. EasyOBD is showing coolant temperature to be 20 to 76 degrees. #1 · Feb 4, 2022. I checked the inertia switch under the dash and hit the reset button and used my test light on that and there's power going in and out of it, i used to my. read more6 Causes Why Fan Still Runs When Engine is Off. 1. 2. 2016 f 150 2. If it is doing this an abnormal amount, the sensor that is operable with the ignition off may be failing. 9L : engine over heats, cooling fan does not turn on. I have a 2017 Chevy silverado with dual electric fans. 2016 chevy silverado fan keeps running after engine is shut off. Had the same problem with a car I worked on at an electrical shop. Ford introduced the Escort for the 1981 model year. Mechanic. 9L LX 4 door sedan. It has a 460 v8 gas motor. Along with concerning noises, you might also noticed. Compare the temperature. Press "rest" switch again - fan stops, then starts again at a lower speed. The fan on ford escort van 51 plate continually runs even when the ignition off Van isn't over heating so why is - Ford Escort question. You can use an ohmmeter to check the resistance of the relay. So with engine off put in new fuse and fan started. Otherwise, this is fine. 100,425. 10. maybe 2-3 minutes at the most. To diagnose and fix this issue, you should start by checking all of your fuses and relays related to the cooling. • 2 yr. Many single electric fan systems normally have a high and low. The ignition relay itself is. Replacing a car fan generally costs around $550 to $650.