HELP!!! 2003 Explorer 4.0

[jrbishop2003]

Details: 2003 Explorer 4.0, rough idle at stop while in gear (stop lights stop signs, etc...), shutter (more of a miss, hesitation) when driving at a steady speed, periodic lack of throttle response,after a few seconds throttle responds and the SERVICE ENGINE SOON light flashes for 30-40 seconds, then goes out (no codes present). This last issue is intermittent, but when the throttle doesnt respond the vehicle feels/sounds as if there is a BAD miss. Recent Actions: new Motorcraft plugs and wires, Coil Pack was changed, MAF was cleaned, TPS replaced (used one from an 04 at junk yard). Took to Ford dealer, tech kept vehicle for 2 days, tech experienced all symptoms (except he said no SERVICE ENGINE light flash). Tech drove vehicle home with Datalogger attached, no codes. Checked EEC V System-Passed, checked for vacuum leaks-Passed, Ran Power Balance, Swapped MAF with a known good one, all symptoms still present.

ANY IDEAS???? PLEASE HELP, I have been chasing this for 2 months now.

 

[BigRondo]

Welcome aboard!!

I have deleted your identical thread in the Truck of The Month Sub Forum.

We have a rule against creating duplicate threads across multiple sub forums.

Please be patient. Someone will be along to offer advice. Give it time.

Good luck getting it sorted.

Please keep us posted as feedback helps others reading this post looking for a fix to the same or similar issue!

 

[jrbishop2003]

[MENTION=134770]BigRondo[/MENTION], Thanks!!

 

[jrbishop2003]

More Actoins: Cleaned the IAC and reset the PCM. Still no improvement. Also, I failed to mention, the motor is a NEW Ford Long Block installed in Feb. 2013, now has 14k on it.