04- help?

[imported_diesel71]

:barf: need help with an 04 dodge 3500 5.9 ho. wont start no codes,fuel pressure is 10 psi to main injecthion pump? heater grids are working fine. batterys are new, transfer pump is working. run diagnostic test and no codes or help thier. one small shot of starting fluid and it runs fine, turn the key off and wont restart, hot or cold??? issed:

[wsa308]

I don't know but mine is in the shop for what sounds to be the very same symptoms. It is 5 days today and they still can't figure it out? Replaced the number one injector, check valve in the fuel system as they thought fuel may be bypassing back to tank. I called yesterday and they still did not have it figured out. Based on what I have learned, I'm thinking it is the High Pressure fuel pump as I had a lift pump replaced with one in the tank and I have read that when the LP dies it starves the injector pump causing premature wear and will follow in 4-6 months depending on how much the truck is used.

Maybe someone with first hand knowledge will chime in here and I will update you when I get some answers on mine

	Dads Intercooler Tanks

[twin_turbocummins05]

ok i just had a post on this web site named 05wont start read them i replaced all my injectors over the weekend and it runs fine you have a sticking injector thats why it will start off of starting fluid. now the only way to can tell the correct injector is too have dodge test it and they can use a tool from cummins to block off an injector at a time to tell the one that is sticking open. i didnt get any trouble codes with mine either i replaced the cp3 pressure pump the flow tubes and it still wouldnt start i replaced the injectors and runs great. i would allmost bet anything this is your problem i hope it helps. keep one thing in mind cummins says you have to replace the flow tubes when replacing the injectors but dodge says you dont for 30.00 i would and did.

[imported_diesel71]

:thanks: guys. i had to send the truck to the dealer:evil: i am a ford mechanic and dont know alot about the cummins. really like it thow :Thumbup: i looked at it for a friend, my diagnostic machine will cut out an injector 1 at a time. i tried this and didnt find any injector sticking??? on a note the dealer still dosent know what is wrong. makes me feel better.:evil: my friend said they are whating for a enginier to come and look at it?????? please keep me posted on what you find out! i am more than willing to learn more about this. :thanks:

[twin_turbocummins05]

once you start it off starting fluid can you drive it. i could mine but the throttle response was crap. i replaced all the injectors and it runs great

[imported_diesel71]

Originally Posted by twin_turbocummins05

once you start it off starting fluid can you drive it. i could mine but the throttle response was crap. i replaced all the injectors and it runs great

yes once its started its fine,no bad throttle response :shrug: felt like a strong good running truck. only has 49,000 miles two :shrug: taked to friend today truck still at dealer,the dc einginier was not thier yet??

[imported_diesel71]

What causes the injectors to go bad like that??? low fuel pressure,bad fuel,weak pump?? :shrug:

[twin_turbocummins05]

the thing is on the common rails you have too have the correct pressure in the rail or the ecm wont let it start i would run the dia. machine on it again and pay real close attention to rail pressure. if you have a good scan tool it will give you desired rail pressure and actual rail press. see if the desired is higher than the actual if so you dont have the required press. and either the injectors are returning all the fuel too the tank or the cp3 is not building the correct pressure.

	Dads Intercooler Tanks

[twin_turbocummins05]

As Too The Injectors It Could Be Any Thing Mine Went Bad In My Truck Because A Partical Passed Through The Filter And Hung The Injector Open. We Only Know That Because I Performed A Faluire Ana. On Them At Work. I Think The Filter In The Dodges Is 10 Micron And Cummins Wants A 2 Micron Filter Before The Injectors.

[imported_diesel71]

thanks for the replys :Thumbup: the truck is fixed, the dc enginier had them change all 6 injectors and the cp3 pump along with the flow tubes. twin-turbocummins you the man :Thumbup: :Thumbup: :Thumbup: :Thumbup: its wierd that the pcm or ecm in a dodge didnt set a code for the rail pressure being low or high??? i did check this and nothing out of ordanary??? im still learning about this awesome beast.