Paccar Mx 13 Loss Of Powerfav Events - Indexlocal Truck Driving Jobs Craigslistforums Category One of the most frequent problems with the paccar mx 13 regen is incomplete regeneration cycles. This can happen if a driver does not allow the process to complete, resulting in soot. If the turbo speed sensor is working properly and there is not check engine light it sounds like either the impeller or turbine portion of the turbo is not. The other day it started this: Boost will fluctuate inexplicably. So we might be driving along loaded and suddenly the power drops. Notice the boost gauge shows a boost. Paccar mx13 fault codes.
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