2019 Mack Anthem MP8 cranks but no start

Discussion in 'Mack Forum' started by Boxler, May 16, 2026.

  1. Boxler

    Boxler Bobtail Member

    9
    1
    Mar 23, 2019
    0
    Have a 2019 Anthem with MP8 motor, it was running fine up to the day it rolled on its side.

    since then off to the frame shop where frame was straightened and got it back to our shop to repair the rest of damage.

    I have hood and a/c condenser, air to air and radiator, fan, and fan belt removed. Tried starting it and it cranks but no start, had it fire on ether for about 20 seconds, had immediate oil pressure and mechanically sounded normal.

    It acts like a no fuel issue, tanks are 1/2 full, I pumped hand primer repeatedly multiple times and can hear fuel circulation back to tank as I hand prime it. It has one of those Davco prefilter/ fuel heater deals with the clear plastic top half where you can see the filter element inside, not seeing any fuel inside that clear top half of filter.

    Im not at all familiar with the Mack Anthems or the MP8 motors

    Any advice or suggestions?
     
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  3. Singh181

    Singh181 Light Load Member

    63
    49
    Jan 26, 2014
    San Jose, Ca
    0
    Try adding more new fuel in the plastic bowl and then prime the system and give it a go.
     
  4. Boxler

    Boxler Bobtail Member

    9
    1
    Mar 23, 2019
    0
    Problem solved, the fuel hose from tank to prefilter had a small slice in it, fixed that and hand primed and it started right up
     
    TXCOMT Thanks this.
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