Has 3.3L. engine.
Did you replace the sensor by the thermostat in the engine block or the one under the drivers headlight, There are two, the one next to the thermostat controls the temp gauge in the vehicle. the one under the headlight assembly controls the actual fans and is a electronic module. You have to remove the head light assembly to get to it.
Joe
SOURCE: 2002 Dodge grand caravan
It would appear that the relay is located on the cross rail that runs across the front of the vehicle (in front of the radiator). I found out that it is riveted in place by a single rivet, so in order to replace mine, I will have to remove the rivet and use a self-tapping screw to secure a new one.
The fan relay is located in the fuse panel located under the hood beside the battery. It will be marked under the lid. Make sure you check the maxi fuse for the fan also.
SOURCE: 2001 Grand Caravan - Radiator Fan Control Circuit Problem
The relay that is located right usually in the middle of the fans is stuck open.Take that off and take it to the nearest parts store and they should have it in stock.Its kind of a common problem.That relay is designed to finish cooling off the car before they shut off and they'll run with the keys out.If the relay is bad they'll keep on running till the battery is dead..
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589
SOURCE: I replaced my radiator cooling fan motors both of
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?
SOURCE: Radiator Fan Relay for 97 dodge caravan
it is mounted under the radiator towards the drivers side,it is flat and held to the frame with 2 small bolts and has a flat wire connector,it doesnt look like a normal relay,its black with a silver plate on the front of it,hope this helps
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