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2008 dodge caravan elec. rad. fan does not run,jumped it from batt.& it worked. But will not run when engine is hot.

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Check fan relay, fuses and coolant SENSOR unit for operation
check connections at the ECM

Posted on Apr 29, 2017

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Posted on Jan 02, 2017

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I have a 02 Grand caravan that has new radiator, termostat, one new fan. the temp gauge goes up to max hot the drops right back down in seconds. what could be the problem?


it could be you have an air lock in the cooling system
remove the rad cap from the rad, start the engine and let it run until the coolant drops (add to fill it back up) or until the coolant boils out of the rad spout.

maybe pull the heat sensor. -replace it OR clean it off, reinstall it.

Mar 12, 2015 | 2002 Dodge Grand Caravan

1 Answer

Radiator fan do not work


check the all the fuses under the dash and under the hood. if they are good then, you can disconnect the rad fan electrical connector at the fan, then using 2 jumper wires you can jumper the fan motor to see if the fan works. you jumper the fan motor just like you would jumping a car. if the fan runs then you will have to check the fan relay, sometimes you can use another relay in the relay box. if the fan doesn`t work then the rad cooling fan is defective and will have to be replaced.

May 04, 2014 | 1998 Dodge Caravan

1 Answer

Battery good alternator good could it be pcm on 2000 dodge grand caravan


Using a volt meter, you need to measure the voltage across the the batt. terminals when the engine is running. you should read near 14.5 volts DC (or more) if the alternator(charging circuit) is working. WARNING be real careful of moving fans,belts and hot parts.

Feb 07, 2012 | 2000 Dodge Grand Caravan

1 Answer

97 caravan it begain with the fans coming on, on moist night conditions and draining by batt. replaced the relay under the air box on the frame rail. now the engine gets real hot with the ac on and the...


yea dodge did a recall on the solid state relays,the next thing would be to replace the coolant temp sensor and the thermostat,that seems to help at least some peoples vans that i have worked on,and then some of the vans of that year i have experienced shorts in the wiring either from the fans back or from the ignition on forward.

Aug 09, 2011 | 1996 Dodge Caravan

1 Answer

1997 dodge carevan over heat check fuse in the rad fan checks good. check the fan buy running a wire to the batt. And it ran and but it will not run by it self.


If the fans work when you apply direct voltage to them but they do not come on when the car gets warm, then I would think the coolant temp sensor is possibly bad. Since the PCM uses the sensor to command the fan(s) to come on.

Feb 22, 2011 | 1997 Dodge Caravan

2 Answers

Over heating on gauge, both fans on rad.


I would say check your coolant level, and change your thermostat. And see if it is high fans or low fans when they come on. There is a fan control relay down on the drivers side frame right under the air box that goes bad too if your fans arent working quite right to check if all else.

Jul 25, 2010 | 1999 Dodge Caravan

1 Answer

1999 dodge grand caravan 3.8l engine cooling fan won't turn on


dont think so,seem to remember a reostat somewhere at the bottom of the rad right hand side ,check for earth problems as well ,sorry if vague but i seem to be forgetting things as i get old .

Aug 17, 2009 | 1999 Dodge Grand Caravan

1 Answer

1997 dodge caravan rad.fan not running


See if it runs when you turn the a/c on. If not Check the coolant level when cold. Check the fuses under the hood. Check for power at the fan when hot or with the a/c on,should have power. If power,then replace the fan motor. If not it get's deeper.

Jun 27, 2009 | 1997 Dodge Caravan

1 Answer

I replaced my radiator cooling fan motors both of them on my Dodge Grand Caravan and i replaced the relay and fuse and coolant temparature sensor and my fans still won't work.


check for battery power at pin 4 of rad fan relay connector..ground at pin 1..jump pins 3 and 4..fans should work..if not,check harness about 3-4 inches away from relay connector..have seen these corrode..if fans work,the engine controller may not be grounding relay..any codes in engine controller?engine light on?

May 16, 2009 | 2000 Dodge Caravan

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