2001 Dodge Caravan Fan On When Off

DODGE CARAVAN
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JCALLETO
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  • 1 POST
2001 Caravan 4 cyl. The radiator fan is turning on when the engine is off and the car is cold. The fan is turning on late in the night when the temperature has dropped. I changed the Fan relay but the problem still continues.
Feb 12, 2007 at 12:18 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
Left sid eof engine compartment is the "intelligent Power Module" I have seen them short causing the fan to run all the time. Follow the fan wires from the fan backwards to the module
Feb 12, 2007 at 5:53 AM

Suggested Repair

Inspect the Intelligent Power Module on the left side of the engine compartment. Trace the radiator fan wires back to the module; a short in the module can keep the fan running even with the engine off and cold. Replacing the fan relay alone may not fix it.

Conversation Summary

A 2001 Dodge Caravan owner reported the radiator fan turning on with the engine off and the vehicle cold, including late at night after the temperature dropped. Replacing the fan relay did not stop it. The expert said the Intelligent Power Module on the left side of the engine compartment can short and run the fan continuously, and advised following the fan wires back to that module.

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