Why won't radiator fan come on? Car overheating

Tiny
TRICEY16
  • 1998 MERCURY MARQUIS

Bought a 98 marquis drove it home next day started it up after about an hour car began to overheat popped the hood noticed the radiator wasn't coming on. Changed sensor, thermostat & radiator and all fuses & relays still nothing.

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Friday, November 25th, 2011 AT 10:57 PM

4 Replies

Tiny
RASMATAZ
  • MEMBER

Power the fan motor direct from the battery and see if it turns on-if so -Could be the computer controlled circuit of the fan relay

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Friday, November 25th, 2011 AT 11:15 PM
Tiny
TRICEY16
  • MEMBER

Did that and the fan works that way. So if it is the computer controlled circuit how would I fix that?

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Friday, November 25th, 2011 AT 11:20 PM
Tiny
RASMATAZ
  • MEMBER

Check the wires back to the computer for shorts/open circuit if okay-think! Computer

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Friday, November 25th, 2011 AT 11:27 PM
Tiny
TRICEY16
  • MEMBER

Ok thanks so much for your help!

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Friday, November 25th, 2011 AT 11:42 PM

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