No start after overhaul - Dodge Cummins Diesel Forum
3rd Gen. Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

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post #1 of 33 (permalink) Old 06-16-2019, 12:55 AM Thread Starter
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No start after overhaul

It cranks but rail pressure reads .3 on my Edge. Fuel filter was replaced and Seafoam was put in the filter housing. I can hear the lift pump when I bump the key. What would make the RP be so low?

Truck was running but had bad blowby and rear main was leaking before I tore it down. Broke rings on 1 and 4.


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post #2 of 33 (permalink) Old 06-16-2019, 04:23 AM
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Have you checked how much fuel your lift pump is putting out and how much your CP3 is putting out?

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post #3 of 33 (permalink) Old 06-16-2019, 01:14 PM
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I would Check for codes could help find any issues with ECM/TIPM since they powers and controls fuel system.

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post #4 of 33 (permalink) Old 06-17-2019, 09:27 AM Thread Starter
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I have not checked the output yet. I'm going through and double checking all my connections are tight first. I forgot my ground strap at the back of the head. The only codes I had at first were the fan and TCC Solenoid. I disconnected the FCA after I didn't get RP, to no avail, and now I get a P0251. I think that was from disconnecting the FCA though. Gonna double check my valve lash too. One guy said that if they are set correctly, it won't get RP. Not sure about that one but it's worth a try to check them.

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post #5 of 33 (permalink) Old 06-18-2019, 08:37 AM
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Yeah good idea double check all grounds on engine/ECM and TIPM
Valves adjust should be checked but usually have nothing to do with RP.
Should check lift pump supply, could check fill fuel filter in 10-15 seconds be prepared to catch overflow.
Fan in rare cases could short ECM so disconnect see if RP goes away.

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post #6 of 33 (permalink) Old 06-25-2019, 09:17 AM Thread Starter
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I checked the lift pump and it flows pretty good. Then I moved to the CP3. I pulled the line from the bottom of the fuel rail and put it in a bucket, cranked it over for about 10 seconds and it dribbled out of the hose (that is the supply, right?). Could it have air in the lines?

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post #7 of 33 (permalink) Old 06-27-2019, 08:05 AM
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Self Bleeding
Should perform proper test for Injectors and CP3 info here https://cdn.oregonfuelinjection.com/...diagnostic.pdf

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post #8 of 33 (permalink) Old 06-30-2019, 12:44 PM Thread Starter
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What would cause an injector to return too much fuel? These injectors worked fine before and they sat in a bag until I installed them. Can I clean them some kind of way? I am ordering me a fuel line cap to see what happens next. I'm just ready for this thing to run again.
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post #9 of 33 (permalink) Old 06-30-2019, 01:44 PM
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Bad injector can cause it to have a high return rate. These injectors have very tight tolerances, so even a really small piece of debris can cause an issue. The only way we can clean them is to run a cleaner through the fuel system.

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post #10 of 33 (permalink) Old 07-01-2019, 12:08 PM
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How long did you crank? Sometimes it will take 30 seconds of straight cranking to prime the system.

Its not gonna start on seafoam alone. LOL Hopefully you didn't load the whole housing full.
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post #11 of 33 (permalink) Old 07-01-2019, 01:58 PM
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New connector tubes? I would check torque on them.

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post #12 of 33 (permalink) Old 07-01-2019, 02:36 PM Thread Starter
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Quote:
Originally Posted by Broaner View Post
How long did you crank? Sometimes it will take 30 seconds of straight cranking to prime the system.

Its not gonna start on seafoam alone. LOL Hopefully you didn't load the whole housing full.
Um, OK it was less than 30 seconds. Probably not more than 10 seconds at a time. And of course I didn't fill it with seafoam , it was probably 75% full of seafoam. Ok, so drain the seafoam for later, check:

Quote:
Originally Posted by 02smokin View Post
New connector tubes? I would check torque on them.
No, the tubes looked great and I didn't over torque them.

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