just put a newer 96 motor that ran perfect bone stock into my 97 my old 97 motor had ad code injectors and my 96 had aa codes in them...i wanted some more fuel so i put the ads in my 96 motor thats in my truck now...problem is that it takes little while to start(helps if i crack throttle litlle bit) and when it does start theres blue/whitish grey smoke that smells like pure diesel...heres my guess shoulda put new injectors o-rings in when i swapped? thanks guys any help is much appreciated

 

I would have put new o-rings on when swapping them...

Also, you really should be tuned for split shots...

 

it still has the edge tht was with the 97 motor and it ran perfect with the 97 motor till the head gasket blew. if it ran fine with the 97 motor is there something off tht motor tht i would need to change to make this one run with the same injectors? have anything to do with fuel pump or hpop issues? tht white smoke is unburned fuel right?

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this is what it looks like. YouTube - ‪97 powerstroke problem please help‬‏

 

Always put new orings on. Those ADs don't need to have split shot tuning but its best for them. And without a chip or tuner of some sort it does no good to put them in.

 

so most likely the o-rings are the issue?

 

It can take 50-100 miles to get all the air out of the system to get rid of hard start. If you did not install new O rings, pull all the injectors and do so. One bad copper can cause you to loose a motor.

 

ok cool thank you guys are bunch of help

 

when i did injectors on my 94 PSD. it did the same thing. it would crank for 3 times as long and then fire. i was blowing white oil smoke for a few miles, and blowing straight oil out of my exhaust. but it cleared up after normal driving.

 

did the orings today and runs much bettter and starts faster still a little oil smoke but it should clear up after some driving