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Discussion Starter #1
I have a 1995 powerstroke with AO injectors. I replaced the injector o-rings in january due to oil back feeding into my fuel tank and drained the oil pan. truck ran fine for for 4 months than on start up it would smoke white-ish smoke at start up until engine warmed up, and had no power.

i thought it might be a injector issue so i got a free 99 7.3 motor with newer AB injectors in it so im swapping them over (custom tune from DP going to be ordered once installed).

I started pulling the injector harness 2 cylinders from pass side when first start up and pin pointed to 2 injectors that were acting up. pulled the injectors and found the hold down bolts wernt TIGHT but snug:dunno: they were torqued down when o-rings were done. when pulled the ends of injectors that sit in cup were covered in carbon. injector cups dont look cracked or anything.

My QUESTION: would my injector cups still be okk or should they be changed out.
 

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Discussion Starter #2
Here's pictures of the injectors when pulled.. All o-rings all still in new condition. One copper washer is "lose" on injector tip.

Any ideas if cups might still be ok??


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