help new injectors now truck wont build rail!!

Dieselmafialb7

Dieselmafialb7

needs more air....
Joined
Jun 5, 2011
Messages
228
Put new 100 hp ii injectors in a 2006 5.9 now itll start but will onlt build 2-3k rail run bout 35-40 secs then die??? I bleed all the lines restarts does the same thing but wont restart till i bleed the lines everything is tight no leaks have the fass jumpered to run non stop?????

Any ideas need this going asap!!
 
First off you don't bleed the lines. EVER.

All you do is once everything is installed correctly is turn key on and cycle the lift pump a couple times and then proceed to crank engine at 30 second intervals until it fires.

Are you positive you installed the connector tubes properly and torqued to 37 ft/lbs? And did the proper seating on the injectors? Did you do any other repairs at the same time as the injector replacement?

And are the injectors truly NEW injectors or remans?
 
New, and ill pull them apart and check the crossovers again no other repairs were made
 
make sure you got sensors plugged back in correctly, it is possible to plug rp sensor in backwards, but no clue if that would cause your issue, sounds like above tho with a leak past connector tubes.
 
Didnt tq the number 1 tube down :doh: :bang thanks for the quick replies guys shes running good now
 
When the tubes aren't seated properly, is the fuel squeezing out the sides where the tube is contacting the injector? Where does the fuel escape to?
 
silver2004 said:
When the tubes aren't seated properly, is the fuel squeezing out the sides where the tube is contacting the injector? Where does the fuel escape to?
Click to expand...

Fuel goes into the return galley, exits out the back of head and ties back into the return from the injection pump and relief valve. Cp-3 cant build adequate pressure in the rail, so you get a no crank or low rail pressure situation.
 
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