2017 prostar looses power

Discussion in 'International Forum' started by Vaso.L, Oct 15, 2020.

  1. Vaso.L

    Vaso.L Light Load Member

    179
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    Jan 2, 2014
    South Holland,IL
    0
    Every 6-10k miles,slows down to 5mph you park it on the shoulder,it shuts off and you cant turn it on next 10 min,after 10min like nothing happened it works normal next 6-10k miles.
    Throws tranny shifter finger code on eld.
    Any idea what it is?
     
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  3. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
    1,726
    Jun 14, 2009
    romulus,mi
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    Check all battery connections very well.
     
    Heavyd Thanks this.
  4. Heavyd

    Heavyd Road Train Member

    7,626
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    Feb 4, 2009
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    5 mph is a common derate speed when you have exceeded the allowable time limit when you have any sort of emission fault. The trans shift finger code is usually a broken clutch and it can't disengage to get to neutral, but this will not cause a derate in speed. Being stuck in gear will cause a no start. Seems like sitting is allowing a system reset. Your first step is check it for codes. Like mentioned, checking all battery connections is a good idea too.
     
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