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losing power 16 glider 96 engine 12.7 detroit

Discussion in 'Freightliner Forum' started by 4noReason, Sep 1, 2023.

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  1. Sep 1, 2023 #1
    4noReason

    4noReason Road Train Member

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    Nov 29, 2012
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    hey guys my truck is randomly losing power. it goes from low power to full brown strong. it sounds like its restricted on air when it does struggle. I did oil change with filters. Any idea what I should look for.
     
    4noReason, Sep 1, 2023
    4noReason, Sep 1, 2023
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  3. Sep 1, 2023 #2
    Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Black smoke?
     
    Big Road Skateboard, Sep 1, 2023
    Big Road Skateboard, Sep 1, 2023
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  4. Sep 1, 2023 #3
    4noReason

    4noReason Road Train Member

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    no smoke
     
    4noReason, Sep 1, 2023
    4noReason, Sep 1, 2023
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  5. Sep 1, 2023 #4
    blairandgretchen

    blairandgretchen Road Train Member

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    South west Missouri
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    Checked CAC boots - pressure test CAC system?
    Any codes? How many miles on injectors?
     
    blairandgretchen, Sep 1, 2023
    blairandgretchen, Sep 1, 2023
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  7. Sep 1, 2023 #5
    4noReason

    4noReason Road Train Member

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    no codes thx
     
    4noReason, Sep 1, 2023
    4noReason, Sep 1, 2023
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  8. Sep 20, 2023 #6
    Rideandrepair

    Rideandrepair Road Train Member

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    Maybe turbo actuator for the wastegate working intermittently? Getting stuck partially open? Big maybe.
     
    Rideandrepair, Sep 20, 2023
    Rideandrepair, Sep 20, 2023
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  9. Sep 26, 2023 #7
    Transportauto

    Transportauto Light Load Member

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    Apr 10, 2022
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    Random loss of power is electrical. if you can get data the ecm is seeing I'd watch boost pressure and throttle position.
    Seen fuel pick tube have a hold mid way up, truck would loose power and stumble when about half a tank and making turns
     
    Transportauto, Sep 26, 2023
    Transportauto, Sep 26, 2023
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  10. Sep 30, 2023 #8
    4noReason

    4noReason Road Train Member

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    it ended up being turno boost sensor. thx 4 help all
     
    4noReason, Sep 30, 2023
    4noReason, Sep 30, 2023
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  11. Oct 4, 2023 #9
    Elroythekid

    Elroythekid Road Train Member

    2,586
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    Sep 9, 2010
    Halifax Nova Scotia
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    My 12.7 once was randomly losing power and then coming back, like a light switch on and off. Turned out to be the turbo boost pressure sensor connector was corroded. $2k at the dealer found nothing, few phone calls to the right guy, few minutes in the parking lot, and haven't had the problem since, now 4 years at least. And it Never threw a code.
     
    Elroythekid, Oct 4, 2023
    Elroythekid, Oct 4, 2023
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  12. Oct 4, 2023 #10
    FLHT

    FLHT Heavy Load Member

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    Wish I could find the guy who Knows the MX-13 ...
     
    FLHT, Oct 4, 2023
    FLHT, Oct 4, 2023
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