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Differential sensor mythology 200 1986

posted by  someone claiming to be jdouglas on  Fri Aug 25 06:44 CST 2006 [RELATED]

The latching and the screwing out of the switch pin is a myth left over from the 140 cars, that indeed worked that way. The 240 warning sensor is self resetting by springs in either end, but crud and rust will make it sluggish after 20 years. If you are able to center it by removing the contact pin, it is not by design but sheer coincidence. The round end of that pin offers nil resistance to the travel of the differential piston.

When one side of the reservoir emptied, it is most assuredly because of a leak at a caliper, and now air is in one half of the system, so the calipers must be closely examined for signs of a leak (wheels off) and then the system must be bled of remaining air.






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