I have taken my truck to lots of shops and had lots of parts replaced and it still wont start. it will push start, start with starting fluid, or get this when u replace the fuel filter? (once) After it starts it runs great, lots of power not much smoke and gets good mileage. any sugestions. -

i would say ur lift pump is going or ur getting ready to need injectors i have an 03 cummins with 133,000 miles it cranked like heck changed fuel filter fired up and ran good u could bump start it it would start and run good then it got worse had to give it a little shot of either fired up ran good people said if u tack it up quick and leave off throttle the rpms will hang their for a second it didnt do that. ran it a little while longer then the rpms stayed up there took it to the shop and they said i need injectors.

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how many miles do u have on it i was told the stock injectors are only good for about 140,000 miles -

mikew's Sig:

2003 dodge ram 3500 dually cummins 6spd edge juice w/ attitude. 1996 dodge ram 2500 cummins 5 spd banks twin ram.

it starter doin this at about 90k, it has 160k on it now -

wow that beats the heck out of me. i read ur post and thought this sounds familiar. some of the seasoned guys will probally b able to help u out better. what all have u had replaced -

what parts have you replaced already? -

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replaced fuel pump lift pump injectors batteries fuel sensors and some kinda relay and had the starter tested. the last place told me it was a grimlin whatever the hell that means -

is ur truck stock -

yep nothin fancy

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I was wanting to try that injector test where u cap each line and try to start it, I was reading about it on here. if anyone knows how to get some detailed instructions on how to do that let me know. I'm no machanic but it didn't seem that hard and I'm tired of paying people to not fix my truck. -

r u talking about capping the fuel rail Old 07-19-2008, 06:17 PM
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Talking Capping A Fuel Rail
To cap a fuel rail on a CR you need a 19mm wrench, a tap, and a set screw. (not sure on the size of the tap or set screw)

Here is the pressure relief valve and banjo bolt on a 06 in the truck



Here is the pressure relief valve on a 05 out of the truck



Here is the banjo bolt



Remove out the banjo bolt



Tap the banjo bolt



Put set screw in the banjo bolt



Reinstall banjo bolt



Now your relief valve can blow off but no pressure can get out. **CAUTION** Doing this can cause harm to the fuel system. This relief was installed by Chrysler for a reason, keep that in mind.

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woops i coppied and pasted thought the pics would come up. search this form ( capping a fuel rail) its very easy to do takes 5 minutes

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if ur pressure relif valve poped that would probally help it -

thanks, I also read about how u can unhook each fuel line one at a time and cap it somehow, once one is capped then you try to start it. if it doesn't start u move to the next one then if u cap one and it starts that's your bad injector? does that sound right? -

ive neaver heard of capping each line to test ur injectors but it might be true -

how can u tell if the relief valve has popped? -

from what i understand if its poped it sends the fuel back to the tank so if u cap it it stops the fuel from going to the tank and the pressure will build up and hopefully your truck will start. i think its supposed to pop if ur rail pressure exceeds 28,000 psi -

damn dont start usin startin fluid on it...thats an enemy -

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2008 Dodge 3500 Bighorn 4x4 Dually 6 Speed, Edge Juice/Attitude+Hot Unlock, H&S 5" Turbo Back DPF Delete, EGR Delete, Banks Ram Air Intake, B&W Turnover Ball, Big Country 3" Tube Step Bars, Handy Gate Gooseneck Tailgate....DIESELS OF DIXIE!!

well I just capped the rail and still no start. thanks for your help. I guess ill keep posting on here and maybe someone will have the answer for me -