Motor has slight vibration ?

Discussion in 'Mack Forum' started by john510, Sep 3, 2021.

  1. john510

    john510 Bobtail Member

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    Jun 22, 2011
    0
    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..
     
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