1998 Volkswagen GTI Why the radiator high speed fan not kic

Tiny
DOUGFLASH007
  • MEMBER
  • 1998 VOLKSWAGEN GTI
  • 6 CYL
  • 2WD
  • MANUAL
  • 192,000 MILES
In the past my 98 gti vr6 high speed fan used to kick in whenever the temperature reached 198 degrees, but now it no longer kicks in.I replaced the radiator fan switch, the fan control module.I also change the engine oil, the spark plugs. Could it be possible for the thermostat or the cooling temperature sensor to prevent the high speed fan for kicking in?I checked the fan which is turning smoothly. Could the radiator be clogged?Please help, guys.
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Wednesday, May 20th, 2009 AT 1:46 PM

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Tiny
BSCHURR
  • MEMBER
The ecm recieves inputs from the cooling system temp sensor that tells it when to turn on the fans. I would start with the temp sensor. Also I would check the relay for all fan speeds.
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Thursday, June 18th, 2009 AT 2:24 PM

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