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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

2nd Gen Cummins No Throttle/ stuck at idle

Posted

First time posting, I've used your advice on many previous issues reading different forums and such. Hopefully you can shoot a clear answer for me here cause I'm stuck.

1999 Dodge Cummins, I've had periodic dead pedal for the last 2 years. Would drop to an idle at highway speed and no throttle response. Shut truck off, turn back on, problem went away. 

Now the truck is stuck at a slightly high idle at 1,100 RPM. No Throttle response at all. I just replaced APPS with Napa replacement. No different.

-Vp44 replaced 3 years ago

 

Some other history:

-one day no gauges worked and got (No Bus) on odometer. Next day "problem fixed itself"

-A month ago the Wait to Start light would not come on before start up. But once running voltage would draw like grid heater was working while running. A week later "problem fixed itself". Wait to Start works fine.

So after this extremely long post (sorry) are these symptoms of a faulty ECM?? 

 

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  • dripley
    dripley

    It is the Dodge in your Cummins. It is like a woman, mysterious at times.

  • DooLittleDiesel
    DooLittleDiesel

    Thanks for the help everyone, the truck seems to be running normal today! 

  • Mopar1973Man
    Mopar1973Man

    Just unplug the APPS sensor. If the idle doesn't return to normal it's NOT the APPS sensor. 

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  • Author

I just calibrated the APPS. Truck seems to be fixed. Idled at 850, and have throttle response. 

Is it possible that me not calibrating the new sensor was the issue?

6 minutes ago, DooLittleDiesel said:

I just calibrated the APPS. Truck seems to be fixed. Idled at 850, and have throttle response. 

Is it possible that me not calibrating the new sensor was the issue?

It could be. @Mopar1973Man can tell you for sure! 

  • Author

Thanks for the help everyone, the truck seems to be running normal today! 

    • Like 2
    1 hour ago, DooLittleDiesel said:

    Thanks for the help everyone, the truck seems to be running normal today! 

    Good to hear! :thumbup2:

    • Like 1
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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.