2005 Freightliner Argosy Acts Like It Has Governor On It

Discussion in 'Freightliner Forum' started by porttoport, Jul 31, 2023.

  1. porttoport

    porttoport Bobtail Member

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    Jul 31, 2023
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    For the first 80-120 miles (1.5-2 hours) it will run 1900-2000 rpm in 8th gear and go 72 miles per hour. Then it becomes consistently sluggish and only achieves 1500-1600 rpm and 60-65 mph. When I stop and turn it off for 15-20 minutes and restart, the problem goes away. Only to rear its ugly head in 80-120 miles
     
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  3. beastr123

    beastr123 Road Train Member

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    That sounds fuel delivery related.
    Fuel filters, fuel lines, or transfer pump are suspect.
    Possibly the fuel pickup being blocked by something floating by sometimes.
     
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