Cummins N-14 Revving up

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Smellfunny, Dec 9, 2022.

  1. Smellfunny

    Smellfunny Road Train Member

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    Jan 28, 2012
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    Customer has a Cummins N-14 around 99 year model. Truck will rev up on its own just sitting in the yard. Goes up to 1500 RPM and sometimes higher. He has replaced the ECM recently. I hooked up the computer and the throttle sensor is at zero when it starts revving up. You can give it some pedal and it goes down to 700 RPM and then right back up. Does not do it all the time. Any thoughts?
     
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  3. Lazer

    Lazer Road Train Member

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    Jan 22, 2017
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    Replace the accelerator pedal and wiring.
     
    Bean Jr. Thanks this.
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