Question about 2001 Volkswagen Beetle

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Where is the thermoswitch for the cooling fan on a 2001. my car is overheating

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OVER IS DUE TO
1 OVER FLUEING
2 UNCLEAN RADIATOR
3 TIMING
4 VALV SETTING
5 OLD ENGINE OIL
OR OVER LOADING

Posted on Jul 22, 2009

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Posted on Jan 02, 2017

mcgyver468
  • 710 Answers

SOURCE: engine overheating

CHECK TO SEE IF THE FAN RELAY IS FUNCTIONING BY SWAPPING IT WITH ANOTHER LIKE THE WIPER RELAY IF THEY ARE THE SAME. IF THE WIPERS WORK WITH THE A/C RELAY IN IT'S PLACE, THEN TRY REPLACING THE FAN FUSE. IF NONE OF THESE METHODS MAKE THE FAN TURN ON THEN REPLACE THE COOLANT TEMP SENSOR LOCATED NEAR THE UPPER RADIATOR HOSE INLET TOWARDS THE FRONT OF THE ENGINE. HOPE THIS HELPS YOU FIND THE SOURCE OF THE PROBLEM. LET ME KNOW. GOOD LUCK AND THANKS FOR USING FIX-YA.

Posted on May 06, 2009

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Check the cooling fan temp sensor, the fan might be working but it is not getting signal to turn on

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Many cars have a thermoswitch threaded into the radiator that activates the fans when engine exceedes normal optimum opperating temp. This sensor may have failed , or one of the 2 wires that go to it may have come unpluged or broken

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CHECK TO SEE IF THE FAN RELAY IS FUNCTIONING BY SWAPPING IT WITH ANOTHER LIKE THE WIPER RELAY IF THEY ARE THE SAME. IF THE WIPERS WORK WITH THE A/C RELAY IN IT'S PLACE, THEN TRY REPLACING THE FAN FUSE. IF NONE OF THESE METHODS MAKE THE FAN TURN ON THEN REPLACE THE COOLANT TEMP SENSOR LOCATED NEAR THE UPPER RADIATOR HOSE INLET TOWARDS THE FRONT OF THE ENGINE. HOPE THIS HELPS YOU FIND THE SOURCE OF THE PROBLEM. LET ME KNOW. GOOD LUCK AND THANKS FOR USING FIX-YA.

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My cooling fan on right side of my radiator runs all the time even when the car is off


problem sounds like either the thermoswitch in the radiator or the cooling fan relay under the dash... test by removing wires from thermoswitch and test for continuity at the terminals with a meter (radiator cold)... if you have continuity the switch is bad... if not it's the relay (fused closed... replace it)... Hope this helps...;-)

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Having the fan run on for a bit after the engine has stopped is not abnormal in itself, but 20 minutes sounds excessive.

If the fan does eventually shut off, I'd consider changing the thermoswitch (this is a sensor screwed into the radiator somewhere near the bottom, with a pair of wires connected to it - to change it, you'll need to drain the cooling system).

If the fan stays on continuously until the battery is completely flat, see what happens when you unplug the wires from the thermoswitch. If this stops the fan, you need to replace the thermoswitch. If it doesn't, then you need to examine the wiring associated with the switch and the fan, looking for damaged insulation.

A.

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1 Answer

1994 9000C Runs hot


Could be the fan thermoswitch. The thermoswitch, if there is one*, is located on the lower portion of the radiator just in front of the turbo outlet pipe. Here is a picture.
You may also have one of the fan relays failing. (On some cars, there were two relays, one for low speed and one for high). Here is a picture.
For general diagnostics of the cooling system, go here.
2 stage cooling fan wiring diagram here.
This also will tell you where to find other components to check, like the fan speed resistor, and provide other diagnostic checks.

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1 Answer

1989 Ford Festiva, keeps stalling as driving.


I had the exact same problem. The cooling fan was failing to come on and thus overheating the engine. Check the cooling fan, cooling fan thermoswitch, and cooling fan relay ( behind drivers headlight ). If you pull the connector off of the thermoswitch the fan will come on whenever the car is in "run"

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