Quote:
Originally Posted by gt75024
Hello all,
My sons 1986 300D brakes started acting up about a month ago. As the brake is depressed, and just before the car comes to a full stop, the front brakes "chatter" and brake ability is reduced, you can feel the "pulsating" through the pedal. Pretty scarry ...
I've removed the two magnetic sensors ( which were totaly full of brake debri) and cleaned them and reinstalled them.
The problem went away, and the drake system acted normal - for about a month...
The problem is back, the sensors are clean, and I've sprayed inside the hole with brake cleaner, but it didn't fix anything, it's still doing it.
Any ideas ???
Thanks: George
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Sounds like the sensors have gone bad!! Follow the wire from the sensor up to the engine compartment. Unplug both senors and perform a ohms test on both. They should be the same. Next check for AC voltage output when the wheel is spinning( I used to do this while driving along at a steady speed so that both wheels where turning at the same velocity) to see if AC voltage is generated by both wheels. If one is not showing voltage then you will know which one is bad!!
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