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04 ram 3500 5.9 cummins rev problem

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  • Mopar1973Man
    Mopar1973Man

    Explain more. Are you stabbing the throttle and getting hanging RPM?

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when I accelerate and release the pedal. It does it all the time in parking and when it is driving

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6 hours ago, Mopar1973Man said:

Explain more. Are you stabbing the throttle and getting hanging RPM?

my truck is 2004 ram 3500 5.9 cummins 

15 hours ago, yankel crespo said:

https://www.youtube.com/watch?v=-gj5iDC9hhc&feature=share

 

My first thought is defective injectors or maybe a sticking actuator on the cp3. Could also possibly be an APPS issue. It almost seems like it wants to run away, If you can get a diagnostic tool with live data capabilities for things like fuel pressure, apps voltage, cylinder misfire it would definitely make diagnostic easier. 

 

Any faults stored within the ECM or PCM? Not all faults will cause the CEL to illuminate.

This is Cummins QSOL troubleshooting tree for you syptom.

 

4021271-t041-tr.pdf

 

 

The J1939 is a communication link similar to what Daimler Chrysler calls a CANBUS on the Ram trucks.

Edited by 04Mach1

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I replaced the FCA about two weeks ago I have no code nor the light of the mill I have also monitored the pressures with my snap and everything looks normal or also replace the return valve back of the head. question is there any way or some company that can send my injectors to check

6 minutes ago, yankel crespo said:

I replaced the FCA about two weeks ago I have no code nor the light of the mill I have also monitored the pressures with my snap and everything looks normal or also replace the return valve back of the head. question is there any way or some company that can send my injectors to check

 

Many on here will recommend DAP. https://www.dieselautopower.com

 

If you have more than 100,000 miles on the injectors just go ahead and plan on a new 6 pack. Don't do remans... It's an almost guarantee the injectors are failing if you have more than 100,000 miles on them. I know injectors are expensive but a fairly common maintenance item on Common Rail diesel engines. 

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