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6.7L Performance Discussion of 6.7 Liter Dodge Cummins Diesels Related To Performance And Longevity

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  #1  
Old 11-10-2012, 04:45 AM
Diesel Fan
Status: diesel smoke makes me horny

   

Default Rail pressure relief valve??

need some help bad i got a 07.5 6.7 and put a new set of injectors in it and new injector wiring harness now the only way it will start is to pull start it and as soon as you go to drive away and then stop it dies wont idle could my pressure relief valve be shot? need to get this pickup on the road bad

farmboy69's Sig:2002 2500 Cummins QC LB,6 speed w/ a Valair Dual Disc, Fass 150,knn cold air, Smarty stacked with a comp box, 5in turbo back to dual 7in miters, chrome helo rims setting on 33x14.5 nitto mud grapplers, 100 hp sticks from diesel dawgs
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  #2  
Old 11-10-2012, 06:27 AM
coors_man_2005's Avatar
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Buy a rail plug and see if that fixes it cheaper then a relief valve if it dont help when it does start is it a complete dog? No power? When i priced a relief valvr from cummIns they wanted like 4 or 500 so i plugged mine been that way for 4 years

coors_man_2005's Sig:08 3500 qcsb 6.7 cummins all deletes raised rail pressure, arp head studs and rocker studs, vulcan head gasket & o rings,(thanks lazarsmith) titanium valve springs, chromoly push rods, silver bullet 66/74/14,fas 150 lift pump, afe stage 2 intake, 12v Cummins carried by 2000 1/2 ton 4x4 dodge 4k.gov springs HD valve springs pump turned up turbo to small
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  #3  
Old 11-10-2012, 06:45 AM
Diesel Fan
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yes it is doggy as hell cant get over 55 has no ***** whats so ever and thank you that is what i was planning on doing just wanted to hear it from someone else if i should or not and ya i priced one and thats when i decided to go with with plug do you know were you can get one off the top of your head
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  #4  
Old 11-10-2012, 09:36 AM
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Here you go bro
H&S 2007.5-2012 Dodge 6.7 Fuel Rail Plug

Tyler@TWX's Sig:
sales@truckwurx.com
http://truckwurx.com/
Mon-Fri 8:00am - 4:00pm Pacific Time
Order Online 24x7
PRICE MATCH GUARANTEE !!!
SMARTY/MBRP/H&S PERFORMANCE/INDUSTRIAL INJECTION/EFIBYRYAN/PPEI EFI LIVE/SHIBBY ENGINEERING/SINISTER DIESEL/FASS/FUEL LAB/GLACIER DIESEL/S&B FILTERS/HAMILTON CAMS/FLEX A LITE FANS.....................
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  #5  
Old 11-10-2012, 11:28 AM
coors_man_2005's Avatar
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There are lots of great vendors on this site. Looks like he got you hooked up. But i buy most of my products from tony @ mighty diesel : 877 354 7008. Hes a great guy if he cant get it he will find it. Good luck

Last edited by coors_man_2005; 11-10-2012 at 11:34 AM..
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  #6  
Old 02-08-2013, 12:00 PM
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I am very surprised that someone has not come out with a relief valve that has a stiffer spring. Shimming is ok but a exchange for one with a stiffer spring would be nice. From what I read you take a big chance if you plug it. it most cases it is fine but if you get a big spike you may be buying new injectors. I am having problems with mine under heavy load so I bought a shim kit and it should be here monday.

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  #7  
Old 02-08-2013, 11:58 PM
coors_man_2005's Avatar
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i have heard bad about the rail plug . but i have been running mine for at least 60k with no problems what so ever
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  #8  
Old 02-09-2013, 09:01 AM
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You are asking for trouble with a plugged rail, and yes - there is a company making rebuilt PRV's. It's been a couple years ago I saw that somewhere, sorry can't give any specifics.
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  #9  
Old 02-09-2013, 09:24 AM
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i have seen dozens of plugs running around. i have only heard bad on the internet.

diesel pap's Sig:Dodge Cummins Electric Blue Mega Cab
AFE Intake, Smarty, Edge Juice W/Attitude(for gauges), Mighty Diesel Head Bolts, 5" Magnaflow, Royal Purple & Mag-Hytec Deep Tranny Pan

1997 Cummins 3500 Dually ~ AFPA 8000# Modified Street Diesel Class Points Champion for 2011 ~
~ AFPA 8000# Modified Street Diesel Class Points Champion for 2013 ~


& 1991 W250 Dually


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  #10  
Old 02-09-2013, 09:34 AM
coors_man_2005's Avatar
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im not saying its not going to fail something.
what i am saying is i got 60 thousand miles. with out a single prob i have heard bad on the net only but not from experience or anyone that it has happend to. i drive my truck like a stock car. i pull trailers grossing a touch over 20k all the way down to car trailers. and hasnt exploded yet.
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