Question about 2004 Chrysler Pacifica

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RADIATOR COOLING FAN MALFUNCTION

RADIATOR COOLING FAN COMES ON WHEN WET

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Maynor be pluggled in properly,why is it getting wet(do you wash the engine at the carwash with it on)is there a coolant leak leaking onto the fan cables/connectors?

Posted on Nov 30, 2012

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Posted on Jan 02, 2017

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Tip

How to test and replace radiator cooling fan.


Hi.

Here a tip illustrating steps to test and replace the radiator cooling fan and the parts that may cause cooling fan malfunctioning.

Before replacing the fan, make sure that the fan is really faulty.
Read volts at fan contacts or jump the fan wiring to energize the fan directly.Ensure that fan blades are not blocked.

If the fan is OK, then the faulty part is either thermostat or fan relay.Ensure also that you have tested the 15A fuse in the junction block and the 40A fuse located in the Power distribution Center (PDC).

Here a diagram showing the location of the fan relay:

34b88b5.gif

Finally, here below the steps required to replace the fan. The procedure is quite simple.

  • Disconnect the battery negative cable and set it apart.
  • Disconnect the electrical connector to the radiator fan.
  • Undo the bolts that hold the top fan housing and fan assembly (this is called Radiator Shroud).
  • Remove the Radiator Shroud housing.The radiator shroud will come out with the fan sliding toward the top side.
  • Install the new fan performing the operations in reverse order.

Here a diagram showing radiator shroud and cooling fan assembly:
181f72a.gif


Regards.

Ginko.

on May 25, 2010 | 2000 Jeep Grand Cherokee

1 Answer

2003 VENTURE RADIATOR COOLING FAN SWITCH


the sensor located at thermostat housing is for the temp gauge..i am still looking for this myself

Apr 11, 2012 | 2000 Chevrolet Venture

1 Answer

Only 1 fan working on my 94 caprice what is the problem


Well, it all depends...

One is called an "A/C Condensor Fan". This one comes on whenever the air conditioner is running. The other one is the radiator cooling fan. This one comes on when the engine temperature reaches a certain point and the engine computer commands it to come on.

If either of these fans fail to work at all, the circuits must be diagnosed to locate the problem. It could be a bad fan motor, a bad fan control relay, a malfunctioning engine coolant temperature (ECT) sensor, or broken wires or loose connections between any of the components.
Low engine coolant (antifreeze) can even keep a radiator cooling fan from working (the ECT will not work correctly if the engine coolant is low).

Jan 26, 2012 | 1994 Chevrolet Caprice Classic

1 Answer

2000 durango cooling system fan running non-stop


Many engine control system faults can cause the radiator cooling fan to come on and run non-stop. Also, if your A/C is on or if you have your heating and cooling controls in DEFROST mode, this can cause the radiator cooling fan to come on (normal operation). Or there could be a cooling fan circuit malfunction (like a stuck relay) causing this to happen.

Check to see what mode your climate controls are in. If the climate controls are not in A/C or DEFROST modes, then you should have your engine control system properly diagnosed to determine the cause of the radiator fan being on continuously.

Also, if the Check Engine light is on, this is a clue that the engine control system is malfunctioning.

Nov 24, 2011 | 2000 Dodge Durango

1 Answer

Radiator fan will not come on


Yes, it could be either of those things. It could also be a bad engine coolant temperature (ECT) sensor or broken wires or loose connections to any of these things. It could also be an ECT sensor malfunctioning due to the engine coolant being low. You need to DIAGNOSE your radiator cooling fan circuits as well as the rest of your cooling system to find out which it is.

Nov 12, 2011 | 1997 Mercury Villager

1 Answer

Renault laguna engine fan not coming on and engine overheats and red warning light comes on and says to stop. coolant ok but everything gets really hot. ok when doing long journey but not when stopping and...


Hi,
The problem would be the radiator cooling fan.
  • Check first the relay, interchange that relay from similar one in the fuse box in the engine compartment.
  • Check the radiator fan motor, pull down the fan motor and directly connect it to the battery.
  • Check the cooling fan thermo switch, it is located underneath/side of the radiator assembly. To check it, just get a paper clip and short the socket connector, fan should run if not the relay has a problem or the fan motor is already malfunctioning.
Hope that helps you out.
Tanks for asking FixYa!

Aug 04, 2011 | Renault Le Car Cars & Trucks

1 Answer

My mazda melinna s is over heating. the cooling fan on the radiator is not comming on


Hi,
You need to fix the cooling fan immediately. You can start to check the paower input to fan first. If there is power input, now check fan for malfunction. For the newer car model, its fan equipped with temperature sensor. Just go check the sensor for malfunction also. Replace the defective parts to prevent this condition. The car with NO cooling fan can lead to worse condition even it can break your engine block.

Regards,

Apr 24, 2011 | Mazda Millenia Cars & Trucks

1 Answer

Test radiator cooling fans


Hello,

they should come on at app. 90 deg. celsius (190 F) .

It is a common problem with the beetle, the cause is a malfunction in the cooling control module.

The module is surveilled by the on board diagnosis system, so you should bring the car to the shop and let them run some tests with the diagnosis computer.

Jun 25, 2010 | 1999 Volkswagen Beetle

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