I’m asking this for a friend. 2012 peterbilt 386 MX13
Guy is on top of his maintenance but for some reason has power issue. wouldn’t pull a sausage off the table. Runs great on flats little hill engine bogs down.
Truck is running weekly south Florida to NYC with plants so no heavy freight. No codes
Pacar MX no power
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Holland Duck, Sep 12, 2020.