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2000 Chrysler Town and Country Cooling fans

Tiny
TARHEEL123
  • MEMBER
  • 2000 CHRYSLER TOWN AND COUNTRY
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 220,517 MILES
My cooling fans weren't running so I replaced the fan relay. I replaced the coolant temp sensor, and disconnected it while running and the fans came on fine. I connected it back and the fans still won't run. What do I need to check next?
Saturday, May 2nd, 2015 AT 11:01 AM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,864 POSTS
What you described is proper operation. The radiator fan gets turned on by the Engine Computer when you disconnect the two-wire temperature sensor as a precaution because if the engine were to overheat, the computer wouldn't know it. To test the system further, you need a scanner to view live data. The fan should turn on at 210 degrees F. And turn off at 198 degrees.
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Saturday, May 2nd, 2015 AT 10:16 PM

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