DA left speed sensor

[Rawze]

I can only assume your referring to the ABS wheel sensors, as trucks do not have speed sensors at the wheels, only ABS sensors.


It is most likely that the Wheel/hub bearing need re-torquing on all the axles. - This should be done every 250k miles, but most truck owners severely neglect doing this. After bearings are re-torqued, the ABS sensor needs to be set to correct distance once bearings are re-torqued.

-- I.E. neglect.