Dodge 2006 5.9L Fuel Problem! Maybe? - DodgeForum.com


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Dodge 2006 5.9L Fuel Problem! Maybe?

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  #1  
Old 02-27-2017, 12:40 PM
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Default Dodge 2006 5.9L Fuel Problem! Maybe?

Hi everyone,

Here is what I know.

Coming home from work I felt my truck shudder. I looked in the side mirror and see white smoke. I let off the accelerator and its goes away.

Now on the home stretch to my house the truck just dies. I put it in neutral, cost to the house, all the while trying to restart it. NO JOY!

The only code I get is "Low Fuel Pressure".

I replace the pressure sensor. Not cheap $280. NO JOY!

I replace the CP3 High Pressure Fuel Pump. Even more Not Cheap. NO JOY!

During the time I am trying to start the truck I notice fuel dripping out of the tail pipe just before the catalytic converter.

The last item I replaced before is the piping for the reticulation system. That's all the piping from the back of the Head and between the fuel filter and CP3 Pump. NO JOY!

I finally think maybe I have a mechanical problem, Cam, timing gear, something like that. So I shoot a little starting fluid in the breather. Runs just long enough to burn the starting fluid and that's it.

I hope this is enough information for you to at least point me in the right direction.

Important note: I have replaced all the injectors about 3 months. Not to say they are not the problem. Just covering all the bases.

Thank you for your time.
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Old 02-27-2017, 01:16 PM
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Moved to Diesel section.


Welcome to DF
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Old 02-27-2017, 07:33 PM
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Lift pump?
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Old 02-28-2017, 04:08 PM
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I don't think so. When I crack the line to the fuel rail it sprays everywhere. I can hear the pump working.

Besides I have a dual fuel system with its own fuel lift pump and I think the odds of both lift pumps failing at the same is astronomical. Forgot to mention the duel tanks on my truck.
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Old 03-01-2017, 12:23 AM
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Cracking the lines won't tell what the pressure is. Need to put a high pressure gauge on it. How about injectors. Maybe one leaking or not working. BTW ether is not a good idea to start a diesel.
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Old 03-01-2017, 09:12 AM
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(: Yea, I know its not a good idea to put starting fluid in the diesel. I just had to know that it was not anything mechanical.

I just put the injectors in about 3 months ago so I am really hoping its not them. But it could be. Would one injector leaking let enough pressure out to keep the other from atomizing?

I guess I am going to have to invest in a High Pressure Gauge. This is the one tool I have been trying to avoid buying because you just don't use it that much.

Thanks.
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Old 03-01-2017, 08:54 PM
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Try AutoZone they may have a gauge you can borrow. If you can fins a shop you trust, have them do a injector leak down test.
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Old 03-02-2017, 11:21 AM
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Are you talking about the low fuel pressure side? Something around 14 psi, or are you talking about the high side around 22,000 psi?
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Old 03-02-2017, 01:54 PM
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High pressure side. You will need a high pressure gauge. You can check the low side as well.
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Old 03-05-2017, 03:53 PM
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The low pressure side is 12-14 psi. None of the auto parts store in Cleveland TN have a gauge set that I can rent that goes any where near the 23,206 psi the high side should make.

I will have to buy one. That will take me a few days to get one in.

Here is some new information. Some where during my starting and testing the truck the PCM has sent me some new code data. I am wondering if I have a bad PCM/ECU? Maybe a open circuit or bad ground?

I know about the cooling fan code. I disconnected it to see if I had a bad fan clutch.

Here is Data:

Fault log report generated by Torque for Android
=================================================

Vehicle VIN: 3D3LX39CX6G222905
Vehicle Manufacturer: Dodge
Vehicle Calibration ID: Not present

Current Fault Log
------------------
P0201: Injector Circuit - Cylinder 1
P0202: Injector Circuit - Cylinder 2
P0203: Injector Circuit - Cylinder 3
P0204: Injector Circuit - Cylinder 4
P0205: Injector Circuit - Cylinder 5
P0206: Injector Circuit - Cylinder 6
P2509: 1) ECM/PCM Power Input Signal Intermittent
U3FFF: null
U3FFF: null

Pending Fault Log
------------------
ECU reports no pending faults

Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0480: Cooling Fan 1 Control Circuit

End of report.
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