Question about 1999 Dodge Caravan

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Radiator fan does not turn on. The fan works when direct wired and the relay switch is OK. There must be a heat sensor switch.

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  • olsondale Jul 12, 2009

    I already replaced the relay switch down by the radiator on thr front rail. Still not turning on. Thanks

  • olsondale Jul 12, 2009

    I bought a temperature switch thinking that might be the problem, but don't know where it is located. I need more help.

  • olsondale Jul 12, 2009

    I believe I found the sensor and unplugged it and the fan did not come on when the ignition is turned on. I can not tell the temperature.since I have no scanner and the engine is cold now.

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Be aware that this fan does not activate until the engine temp reaches half and the thermostat is in control of this.To test follow the wirre from the fan to to the cooling system,the switch(thermostat) should be connected to the cooling system, where the cooling rubber pipes are connected,follow it and you will find it,.Then disconnect wire to it and put ignition on, if the fan runs this time then you need a new thermostat.

Posted on Jul 12, 2009

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  • Master
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I know you wont like my answer but the fan relay which is located on the front radiator support behind the bumper cover is your problem i work for a dodge dealer and this is what goes wrong with them NOT the relay in the fuse box but the one i discribed.This part is about 2x3 inches in size. :)

Posted on Jul 12, 2009

  • mike loshbough
    mike loshbough Jul 12, 2009

    The next step would be to check the coolant sensor on the intake .The fan should come on at 214 degrees .if you have a scanner then you could see the temperature the the computer says.

  • mike loshbough
    mike loshbough Jul 12, 2009

    When locate the coolant temp sensor unplug it to see if the fans will come on.

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