12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Help Please

Old Oct 27, 2010 | 10:37 PM
  #1  
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I installed a new harmonic balancer on my truck and when i fired it up the rpm gauge doesnt move at all and it wont stay idling. I also adjusted my afc and fuel plate. I was wondering if anyone could help me out with this?
 
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Old Oct 27, 2010 | 11:55 PM
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I dont know about the idling but you need to adjust the sensor right above the harmonic balancer to where its just not touching
 
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Old Oct 28, 2010 | 12:23 AM
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I put the sensor so its right above the balancer but it still didnt do anything. I am ordering a new sensor tomorrow, could that be it?
 
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Old Oct 28, 2010 | 07:38 AM
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Unless you were rough on it, I doubt it just broke. Make sure the clearance is proper.

As far as it running... does it stay running if you hold your foot on the gas? or does it not run at all? RPM needle doesn't even bounce/move at all?

Details!
 
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Old Oct 28, 2010 | 11:16 AM
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Well the old balancer was bent to hell and we think it might of hit the sensor messing it up, but when I put the new balancer on I moved the sensor up and down to see if it would work. If I keep my foot in it it will stay running but when I let off it dies. And the RPM needle doesnt move at all no matter what. I am going to check the shutoff solenoid today. Could that be it?
 
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Old Oct 28, 2010 | 12:04 PM
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Possibly... I don't have any experience with them, but if the shutoff solenoid is stuck down, wouldn't that prevent fueling for startup/run?
 

Last edited by Apmcrx; Oct 28, 2010 at 02:28 PM.
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Old Oct 28, 2010 | 02:09 PM
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The engine speed sensor which goes on the damper should be gauged at .50 thousandths and what is your idle at?
 
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Old Oct 28, 2010 | 04:19 PM
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Well i figured out it is someting in the shutoff solenoid. It isnt opening or closing so its not getting power or its bad.
 
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Old Oct 28, 2010 | 06:35 PM
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you can always just take the shut off solenoid off, and start the truck and see if it idles... and if it does, just buy like a 4ft choke cable and use that as your shutoff solenoid... mine did the same thing, wouldnt idle unless you messed with the pedal.. but i just learned today that the injection pump needs to be rebuildt... so good luck! ahhha
 
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Old Oct 28, 2010 | 08:33 PM
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How did your IP die?
 
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