The car runs like a dream now I just picked it up. It is so nice to have a car running like it should. I hope you guys find the problem with your cars. Other thing that I noticed is that another ford (a 3.0L duratec) was in for the same problem and he expects it to be the same thing. He said the ford coils have been getting replaced very often. I know one of you said you checked it but make sure because it will cause the stuttering if it is bad. Your wires could be bad just like mine so check them if you get a chance.
Good luck,
Chris
1999 V6 MTX Black Cougar
Jacobs ignition system, Borla dual exhaust, Sho shop y pipe and hi flow cat, gutted precats with MIL eliminators, IAT rewire, vitek ignition wires, SCA CAI with monster flow filter, Unorthodox racing pulley, BAT rear strut brace, Battery relocation to trunk, eibachs, KVR crossdrilled/slotted rotors, freedom design strut brace and Tuned S-AFC
Waiting to be installed:
svt engine with 11k miles on it/ fidanza flywheel/Quaife/energy suspension engine mount inserts.
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