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    Thread: Radiator fan running after turning the car off

    1. Junior Member ftsang1228@hotmail.com's Avatar
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      05-26-2011 04:26 PM #1
      Hello My fellow V-dub members,

      Once again, i come to you for help. I have a 98 GTI VR6. My radiator fan has been running for about 30 min after the engine been shut off. im not driving the car rite now and i unplugged the fan. Didn't want the fan to blow since its constantly running and i just replaced it. Any ideas why the fan is constantly running after the engine turned off????

      Thank you. your help is greatly appreciated

      Frank

    2. Member
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      05-26-2011 04:45 PM #2
      Quote Originally Posted by ftsang1228@hotmail.com View Post
      Any ideas why the fan is constantly running after the engine turned off????
      because it's still hot..

    3. Member VWJETTY's Avatar
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      05-26-2011 05:07 PM #3
      its suppose to do that. mine does it too when it's hot outside...but not for 30 min. you must run it extremely hot lol.
      www.wideopentuning.com

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      05-26-2011 07:27 PM #4
      yeah its supposed to do that lol
      I have acess to wiring diagrams and any repair manual for a VW.Pm if you need something

    5. Member jorge r's Avatar
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      05-26-2011 08:12 PM #5
      instead of unpluging the fan motor, unplug the radiator coolant sensor, this sensor seems to not satisfy and wants the fan to run when it shouldn't

    6. Junior Member ftsang1228@hotmail.com's Avatar
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      05-27-2011 02:11 AM #6
      Yea I kno it's not suppose to run for 30 min.. I unplug the fan , let the car cool down. After 5 hours the car cooled down and plugged in the fan and it was still running... Smethings not rite

    7. 05-27-2011 12:38 PM #7
      Have you replaced the thermoswitch for the fan?

    8. Member
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      05-27-2011 03:25 PM #8
      Quote Originally Posted by ftsang1228@hotmail.com View Post
      My radiator fan has been running for about 30 min after
      I assumed this was an exaggeration...

      Quote Originally Posted by ftsang1228@hotmail.com View Post
      After 5 hours the car cooled down and plugged in the fan and it was still running...
      Yea, you have yourself a problem.

      The fan on my VR runs for a couple minutes after shut-off and then turns off. Check your coolant sensor, anyone know what the ohms should be on a properly functioning sensor? I can possibly grab the readings off of mine tonight, but I tend to doubt mine is "properly functioning" given its quarks and age...

    9. Member jorge r's Avatar
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      05-27-2011 10:53 PM #9
      coolant temperature sensor is either open or closed contacts, 0Ω or ∞Ω , mounted on the driver's side on the radiator, disconnect it while the fan is on to see if the sensor is keeping it on.

    10. Junior Member ftsang1228@hotmail.com's Avatar
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      06-01-2011 06:19 PM #10
      Hey jorge
      If I unplug the sensor, is it suppose to stop the fan????
      And wat color is thesensor?? Blue yellow or brown???

    11. Member jorge r's Avatar
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      06-01-2011 10:35 PM #11
      The coolant temperature sensor switch is in the radiator driver's side, is where mine is at, right next to the fan motor. It makes contact to power the fan motor, even when parked, it may have faulty contact at lower temperature than normal. Try unplugging it to see if the fan cuts off.
      ABA Coolant
      Last edited by jorge r; 06-02-2011 at 04:35 AM.

    12. Junior Member ftsang1228@hotmail.com's Avatar
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      06-07-2011 10:24 AM #12
      Thanks alot you guys for the help. Greatly appreciate it. Problem is FIXED. It was the "fan control module relay" located underneath the coolant bottle

      Frank

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