radiator fan not working when idle
Run jumper wires between the connectors two electrical terminals. This powers both the Condenser fan and radiator fan in series through the 41 and 58 fuse the AC condenser fan relay the Ac condenser fan motor then through the fan control relay to the radiator fan motor.
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Cools down and runs at normal temperature when driving.
. If your idle is dropping too much for too long then the bypass valve could be the issue. If the fan does not turn on you will need to replace it. Make sure the fuse for the radiator fan is intact.
This video applies to any type of electric cooling fanWorking on a Ford Edge2 Years earlier VIDEOhttpsyoutuberDj7EDeyL3kSubscribe here https. Do your best to bleed air out of the system speak up if you need help wthat process or feel free to search here it can cause several issues from poor heater performance to the ECT sensor not reading properly which can raise heck with fan operation. Pull over while idling still warm not over heating.
Save Reply russcoop Premium Member. Up to 8 cash back It over heats when its at an idle. Driving your car is a good way to get the coolant temp hot.
Radiator fan does not turn on when overheating. Start by unplugging the wires. If the fans never work it could be the cooling fan ECU located behind the grill but check the 50A fuse powering it and the fan relay first.
The compressor clutch kicks in and out. If you detect zero then your relays power pins have stopped working and you need to replace the relay. 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.
Asked by Markrob Dec 04 2016 at 0651 AM about the 2007 Dodge Caravan SXT FWD. If it is not replace it immediately and this should take care of the problem. Radiator fan testing points.
No blown fuses or melted fuse block. Up to 8 cash back Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required. HelloI have an 08 dodge grand caravan that will overheat at Idle the cooling.
Fan will come on when the ac is on and the heater does blow hot air the. Unplug the radiator fan connector. If the fans fail to operate only with the AC but do come on in normal hot engine conditions then the fuse and relays are fine - its a command problem at the ECU or the AC controller.
3 If all the above signals and wires are good and fan not running then its a bad fan. With AC turned on there should be 12V PWM signal across the wires. It over heats when its at an idle.
So in low speed the fans are wired in series through the condenser fan relay and the fan control relay. Get a fuse kit here with multiple sizes for multiple quick repairs. Cools down and runs at normal temperature when driving.
We use cookies to give you the best possible experience on our website. If you think the cooling fan isnt working because your temperature gauge is indicating overheating open the hood start the engine and let it idle for 15 to 20 minutes. Voltage is going to the fan plugs.
Up to 25 cash back Radiator fan isnt coming on when idle. If the fan comes on you may have a bad temperature sensor or gauge. When an extra load is put on the electrical system rad fan the alternator increases its output which puts an extra load on the engine.
My car has an automatic transmission. Radiator fans not working and car overheats while idle asked by Seth C. 2 check the 2 wires from the controller to the fan.
If youre having idle problems its most likely due to your idle air control valve. AC blowing warm when at idle. If you notice that your engine is running at higher temperatures than normal.
See Contact Test in Step 1. Start your vehicle and let it idle for 10-15 minutes. The computer will usually compensate for this quickly via opening the air bypass valve more.
Normal coolant temperatures rising where the temp gauge indicates on or near the redline or when the ac is turned on. I started to notice the ac getting muggy but only while sitting in the last few - Answered by a verified Ford Mechanic. And not that hard to.
On July 26 2016. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. At slow speeds or idle the AC gets warm and makes a buzzing sound coming from under the dash.
Try to measure the voltage in AC mode not DC. Reasons Why Your Radiator Fan Isnt Coming On. Its very inexpensive on amazon or Ebay.
Both fans are bad. Gauge is about halfway and the reservoir will start popping and shaking. If the engine is heating but the fan isnt kicking in check the fan wires.
The radiator fans do not work at any time even when applying a voltage to them from a separate source. My car has 167000 miles. Replaced the radiator fan assembly but they still wont spin.
3 If the fan. If your idle is dropping too much for too long then the bypass valve could be the issue. Radiator cooling fan not working on my 2011 ford fiesta.
About 2 mins later ac kicks in and starts working fan kicks back on. Still at idle 15 mins later ac starts blowing warm again 20 mins later I read 240 per torque pro app. If the radiator fan is in working condition move on to the next step.
Connect one lead to the power circuit and one lead to the power terminal. There are a few common reasons why your radiator fan is not turning on. Replacing the relay could fix your radiator fan from having stopped working.
Watch the vehicle and see if the cooling fan comes on. Best to measure this with an oscilloscope.
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