Dodge Truck and Cummins Turbo Diesel Forum Discussion of General Topics related to All Cummins Engines or Dodge Trucks

idle surge then dies at start up

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Old 01-20-2019, 09:56 PM
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Default idle surge then dies at start up

I have a 99 dodge 2500 cummins. Starts surges then dies, dead throttle. After several tries it starts and runs fine. New lift pump, checked all fuel connection s. Can't figure it out.
 
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Old 01-21-2019, 01:06 AM
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Anotger member may come along with a smoking gun.

But, usually when I have a 24v that has a starting issue similar to yours, it usually indicates an injection pump in the process of failing.

Its possible that that itís s sensor, an intermittent short, an ecm issue, and a handful of other things. But most times your symptoms are indicative of a vp44 issue.

Do do you know how to isolate the injection pump from the ecm to illuminate that possibility?
I can type it up tomorrow if you donít. I just walked in from my shop or Iíd do it now.
 
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Old 03-21-2019, 11:33 AM
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Your lift pump is not holding pressure and is letting fuel siphon back into the tank. It is starting with fuel that is in the common rail injector pump but without any more fuel in the line the engine starves out and dies. Time for a new lift pump.
 
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Old 03-27-2019, 11:41 AM
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What Lift pump do you have in truck. Usually if you have fuel drain due to leak or bad pump its a long start not a start surge then die. cycle the key and see what codes slide through the odometer. Sounds like a bad VP. especially if you had to put in a new lift pump due to the old one being bad, coudlve fried the ECM on the pump
 
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Old 05-09-2019, 10:07 AM
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Figure this out?
 

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