Temporary fan belt sensor fix
#1
Rennlist Member
Thread Starter
Temporary fan belt sensor fix
Murphys law.
Have just started a mini road trip and the fan belt sensor on my 993 C2S as often occurs decided to disintegrate half way through the start of the trip. The wheel resting on the belt essentially disintegrated itself and disappeared leaving the sensor resting totally against the belt. This caused a portion of the sensor arm resting on the belt to wear a ridge in itself which gave me an idea to pull the arm back with a zip tie using the ridge as a mounting point for the zip tie.
Not wanting the arm of the sensor to continue to rub and melt itself against the belt thereby causing wear to the relatively recently changed belts I opted to get the whole sensor out the way and disengage the stupid red warning light.
Obviously this means needing to monitor the belt condition and temperature of the engine to make sure all is well with the belt as the warning sensor will be essentially disabled with my temporary fix.
A quick trip to the hardware store for some zip ties allowed me to strap the sensor switch away from the belt as per the attached pics. This had the effect of removing unnecessary wear on the belt and at the same time turning off the fan belt warning light on the dash till I get back and replace the whole sensor as the sensor believes there is tension on the sensor with the sensor arm pulled back away from the belt.
Note that the sensor only identifies a missing belt and not belt tension.
Please remember to always check the condition of your belt and the engine temps with this quick fix to make sure all is well with the belt till a new sensor is replaced.
Last edited by Harold; 12-28-2018 at 05:19 AM.
#6
Rennlist Member
Thread Starter
Rather than remove it I may just leave it as is with the zip tie as it serves the same purpose.
Yes very true. Had this done on my Carrera.