Ok well i officially finished my 97 f150 4.6 to 2003 5.4 2v swap, did everything to the t from the swap bible
http://www.f150online.com/forums/art...wap-notes.html ( it was emensly helpful)
so these are my issues now, i used the 4.6 original harness, extended some cables for the throttle body, and had to swap connector to the wire going into the block underneath the intake manifold that comes out the back of the unit, no idea what it was called, but one was female and the other was male so it didn't work with out the chop and splice.
i was only able so far to get one of the fluid heat sensors tapped into the cross over pipe before the thermostat , the black topped one sensor, ( our 11/16 tap bit the dust before we could do the final tap. since the 5.4 did not come equiped with them pre installed
so now i have everything else hooked up , except ! 1 lonely little what looks to me to be a vacuum line, has the same end as the one that goes into the fuel rail and the green one that goes just to the right of the throttle body , but now i am left with this last one that seems to want to as well go somewhere to the right side of the engine but i have not been able to track down any more ports to attach it to
so for now i have just capped it
this is my problem, the truck runs like crap, with alot more power but still like crap
it does the violent shudder / rocking, feeling like it is missing almost sort of thing.
ps this new engine only has 38,000 km on it , and everything is pretty well new on it, egr and full tb was completely cleaned vibrantly shiny before install.
any suggestions? i am thinking vacuum problem since everything else was clean and or new
thanks in advance