2007 T800 Kenworth Running Bad After Rain

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by kitty_voncoupe, May 24, 2022.

  1. kitty_voncoupe

    kitty_voncoupe Bobtail Member

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    May 24, 2022
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    2007 T800 Kenworth starts running rough after a rain, black smoking, missing, no power, won’t take fuel. Anyone had the same problem? After it dries out runs and drives just fine.
     
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  3. kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

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    Gad a Columbia that did that. Water was getting into the plug where it plugs into the ecm.
     
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  4. kranky1

    kranky1 Road Train Member

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    There’s a very good chance @kemosabi49 aimed you at the right place. I’ve had both 40pin and 70pin Cats take moisture in the plug. Either loose or the weather seal on the plug bad.
     
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