odd injector tip question
 

So my truck(the 03 in my signature) started making a nasty knocking sound at idle when in gear, after i hauled a sorta heavy load over the mountains...:dang: But once the rpms go over 1200 it clears up...
So I took to a diesel mechanic and he did some tests and said #1 injector isn't working. It doesn't make sense to me cause i know what I sounds like and feels like after an injector quits cause my dads 06 had 3 injectors go out 3 different times(yeah I know we shoulda just replaced em ALL the first time):w2: but anyway...
I told him ok so I guess i'll put a new one in, but I have to put the 25hp nozzle off my old injector on it first. I tried to put the tip on the new one but the new one has a stainless body and apparently when Bosch switched to stainless bodies they also changed the way the nozzle fits on.?.?:argh: SO........
Now I have to put one in with a stock tip and the rest have 25hp tips.:scare2::scare2: cause I do not have the money to put all new ones in. Is that going to cause any problems????

Also when he took the #1 injector out the little plastic piece between the 2 little studs to put the wires on is missing. Mustve fell off. Would that cause any issues?????:s:

sorry about the really long write up! Just a tad hard to describe.

Doesnt anyone have ANY ideas for me?
This driving me nuts now!! He put in the new injector and it seemed a bit better for awhile but after a little driving it sounds exactly the same... maybe worse! So now he has his money and i got nothin...
I also checked the valve lash, nothing wrong with that...

unplug ur fca connection and see if it sounds the same..at idle.. if it doesnt change its ur fca..also try and re torque ur transfer tubes and line nuts...

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any codes to it?

what is the FCA? where is it description or any help I would like to know more. Thanks

ok ill try the retorque... and I found some info on the fca over on cumminsforum... I'll check that too...

No its not throwing one single code... weird i know!

i would be scared running miss matched injectors that cant be good at all