No one will inured this out, No One, but you can try
2004 Town car 4.6; starts right up, idles fine, no mis fire, accelerates in all
gears. When engine is warmed up however it hesitates badly upon
acceleration making the use of lower gear, passing gear, to accelerate.
Doesn't stall, idles fine when sitting or driving. Please don't state the obvious
answers that would be given for a stalling or rough idling engine. No
mechanics nor blog answers have been correct, so far. Good luck