Question about 1992 Acura Legend

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Radiator fans will not cut on and cool the engine

Ww replaced the motor on one of the fans. but it will not turn on

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Check the fan relay and check wiring

Posted on Mar 24, 2014

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Check fuses and relay for the fan . Replace the coolant temperature sensor ( not the temperature gauge sender unit)

Posted on Mar 23, 2014

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1 Answer

My chevrolet uplander radiator cooling motor fan only working, when the A/C is turn on. Any relay or fuse that I need to check?


It would be useful if you had mentioned whether it was a radiator cooling fan motor or a heater/ventilation fan.

It is usual for the cooling fan to switch on with the A/C is on unless the ambient temperature is quite low, otherwise it only operates subject to engine coolant temperature via a thermal switch fitted into the cooling system and/or the engine management system.

The heater fan is either directly switched and faults relatively simple to trace or subject to the whims of the climate control if fitted when a degree in magic is needed along with a box of tricks.

Aug 22, 2015 | 2006 Chevrolet Uplander

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Fan motor does not run when engine is running,when engine switch off then fan motor runs,why?


The car is cooled by the water pump pumping the coolant and the movement of air through the radiator the fan is on a thermostat switch so it cuts in if the tempreture rises, the ignition turns off the water pump so as the water is not moving around the engine the temp rises the fan cuts in as to not damage the engine.

Sep 19, 2014 | Cars & Trucks

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Power steering pump on my 2001 mini one stays on when the ignithion is turned off


It is not your ps pump that is staying on, it is the ps pump COOLING FAN located below the pump. On 2001-05 Minis, this fan is wired directly into the wiring of the main radiator cooling fan, which has two speeds, low and high. When the engine compartment temperature reaches a certain level, the main radiator fan is supposed to come on, and since the ps cooling fan is also wired into that, it is supposed to also come on. But, that low fan speed is achieved by routing power to a resistor, located at the top back of the radiator on passenger side, that cuts the power down. This resistor is highly prone to corrosion and failure. When that happens, neither the main radiator cooling fan nor the ps pump cooling fan can come on UNTIL the engine compartment temperature reaches an alarming level, which switches through a relay power directly to the fans, by-passing the resistor. By then both fans are attempting to bring the temperature back down to a safe level. Then, if you turn your engine off before the temperature reaches the lower threshold so that the fans are still running, the ps pump cooling fan will just keep right on running, as there will be no relay signal given to turn it off, and your battery will be drained.
To fix this, the resistor either needs to be replaced, or, the resistor can simply be removed and the contacts jumped. This last fix will mean that when the lower temperature threshold is reached, the main radiator cooling fan will come on at full speed, and the ps pump cooling fan will also come on. After my ps pump failed due to fan failure, I did this to my '03 Mini, and have run it for years this way. No more ps pump problems. You do need to make sure you keep the fan clear of debris and freely turning, or you could have bigger problems, like a fire, since the wires will get very hot sending power to the fan motor when the fan is bound up with the motor not turning. A blown fuse will often be the first indication of a fan bound up.

Apr 14, 2012 | BMW Mini Cars & Trucks

1 Answer

My radiator fan is not working


For radiator replacement procedure and radiator problem troubleshooting. I suggest you to click the link below and follow the detailed procedure :-----

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How to Replace Engine cooling Fan on car? http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-engine-cooling-fan-on.html

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Engine makes noise and Cooling Fan belt Breaks? http://howtobyme.blogspot.com/2011/12/engine-makes-noise-and-cooling-fan-belt.html

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Replace Fan Relay but still Radiator cooling fans not working? http://schematicsdiagram.blogspot.com/2011/12/replace-fan-relay-but-still-radiator.html

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Cooling fan relays location? http://technoanswers.blogspot.in/2012/02/cooling-fan-relays-location-on-1998.html----------DIC says "COOLING FAN FAULT"? http://schematicsdiagram.blogspot.com/2011/12/dic-says-cooling-fan-fault.html
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How to replace radiator Cooling Fan?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cooling-fan-on-acura-car.html

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Engine cooling components working?

http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html

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How does Vehicles Engine cooling system works? http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html

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cooling fan not working http://schematicsdiagram.blogspot.in/2012/02/hyundai-sonata-cooling-fan-not-working.html----------- Fuel pump relay and cooling fan relay troubleshooting? http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html

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Why Transmission fluid leaks near radiator?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

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Transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html


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How to replace Radiator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-audi-and-vw.html

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HOW TO REPLACE AN UPPER RADIATOR HOSE

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-upper-radiator-hose.html

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HOW TO REPLACE A LOWER RADIATOR HOSE

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-lower-radiator-hose.html

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How to replace Radiator on Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-acura-car.html

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How to flush cars radiator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-flush-cars-radiator.html

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HOW TO PRESSURE TEST A RADIATOR AND CAP

http://schematicsdiagram.blogspot.com/2011/07/how-to-pressure-test-radiator-and-cap.html

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HOW TO REPLACE A RADIATOR

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator.html
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HOW TO REPLACE A RADIATOR SUPPORT

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator-support.html

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This details will help.

Thanks.

Feb 01, 2012 | 1997 Mercury Cougar XR7

2 Answers

Fan dont work but when i turn on cooling system two fan work please give me lay out for cut-off and fuse


If you have two electric fans the fan on the passenger side of the vehicle is the radiator cooling fan, that fan should run when the motor gets to hot. The fan on the driver side is the ac condenser fan that fan runs only when the a/c is turned on. The only time that both fans run is if the a/c is on and the motor or coolant is above normal tempeture.

Aug 15, 2011 | 1995 Hyundai Sonata

1 Answer

Cooling Fan won't come on, coolant flows into overflow tank


there is a switch in the engine intake or cylinder head that controls the cooling fans. The switch is the one with only 1 green wire hooked to it. Turn the key to run, with the engine stopped pull this wire off and touch it to a ground( cylinder head, engine block) and the fan should start, if not look at the fuse, if it does you need to replace the switch.

Mar 13, 2010 | Chevrolet Celebrity Cars & Trucks

2 Answers

Cooling fan not activating


On most vehicles, there is a thermostatic switch located on the bottom tank of the radiator that controls the electric fan. When AC is turned on, this switch is bypassed so its failure is 'cured.' These switches aren't terribly expensive nor difficult to replace but ensure you don't lose coolant on the ground while replacing the switch since the stuff is tasty and toxic to animals.
If you like to be able to research and or repair minor problems like this, you might consider buying the Haynes manual for your car. This will also let you approximately access what a repair might cost for labor if you can see the degree of difficulty yourself.
Haynes Buick manual
These are available at auto parts stores often cheaper than the online price. We have on for (and IN) each vehicle we own since they can be lifesavers now and then.

Feb 27, 2010 | 2002 Buick Century

1 Answer

Want to replace the radiator on my 1997 ford thunderbird


Radiator Aluminum Core, Crossflow — 3.8L (Base) and 4.6L Engines
Removal
  1. Drain engine cooling system as described. Disconnect upper radiator hose (8260) and lower radiator hose (8286) and radiator overflow hose (8075) from the radiator (8005). Disconnect the transmission oil cooler inlet and outlet lines from the radiator.
  1. Remove cooling fan motor,fan blade (8600) and fan shroud (8146) assembly as described.
  1. Remove radiator upper bracket retaining bolts and remove bracket. Lift radiator from vehicle.
Installation
  1. Position the radiator into the vehicle. Install upper brackets and tighten bolts securely.
  1. Connect the transmission oil cooler lines to the transmission oil cooler fittings.
  1. Install cooling fan motor, fan blade and fan shroud assembly as described.
Engine Cooling Fan Motor, Fan Blade and Fan Shroud Assembly, Electrical Removal
  1. Disconnect (pull apart) the male-female cooling fan motor wiring connector at the side of the fan shroud (8146). Remove the male terminal connector retaining clip from the fan shroud mounting tab.
  1. Remove two fan shroud upper retaining bolts at the radiator tanks.
  1. Lift cooling fan motor/fan blade (8600)/fan shroud assembly past radiator (8005), disengaging fan shroud from two lower retaining clips.
Installation
  1. Follow removal procedure in reverse order.
  1. Tighten fan shroud retaining bolts to 5.2-7.2 Nm (46-63 lb-in).

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    Oct 30, 2009 | 1997 Ford Thunderbird LX

    1 Answer

    Engine cooling fan not cutting in Peugeot 206 2002 Cooling fan and motor have been replaced with main dealer parts


    Try the cooling fan switch, it looks like a large brass nut with wires on it on the thermostat housing or radiator.
    To test, pull off the wires and connect together, turn on ignition and the fans should cut in.
    If they don't it could be the relay, fuse or broken wire.
    The switch is easy to replace, unscrew and rescrew in the new one. Connect the wires, not important which way the wires go, and refill coolant.

    Aug 07, 2009 | 1991 Peugeot 405

    1 Answer

    Engine overheats and cooling fan cuts off


    try to replace the hoses, they may be collapsing, then replace the thermostat, and give it a radiator flush to clear any possible clogs in the lines, last thing i would say is to replace the fan

    Jun 24, 2009 | 1995 Ford Escort

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