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cbigham's avatar
cbigham
Explorer III
Dec 30, 2013

vehicle speed sensor- cat C7-allison trans combo

Got a funmover 39c on an f750 cat c7 chassis with a speedometer going wacko....one second at 0, then 90, bouncing around. Would be easier to service if the engine wasn't cutting out thinking its over ...
Class A
Mandalay_Parr's avatar
Mandalay_Parr
Explorer
Dec 31, 2013
There is probably an encoder (speed sensor) located on the output shaft of the Allison.
The engine sensor I mentioned previously would run the tach.

Jerry Parr

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