Have a 91 Mack RD with a 300 E6 motor in It and it started to develop a slight vibration when idling and running in the motor, I checked the engine mounts , they are good and changed fuel filters and air filter. Any ideas? Could it be injectors has around 350 k on it..
Motor has slight vibration ?
Discussion in 'Mack Forum' started by john510, Sep 3, 2021.