Hi I recently purchased a 2002 f150 5.4l 2v. The first week of owning it had to replace the timing chain guides tensioners etc... The timing did not jump or anything but one day started running rough took it to a shop and had it bore scoped and the #3 intake valve was bent. So I pulled the head off and replaced all valves and had it gone thru. Re assembled everything started it up and runs the same. Smooth but light rough idle. In gear from a dead stop barely moves. The passenger bank you can unplugged the coils and runs the same. Any ideas. Please help I'm stuck. Thank you for reading this long post

 

Did you do the resent work or did you have a shop do it? If a shop did it, return it

I would verify that there is power to the passenger side coil connectors...they might not be getting the signal to fire...if they are the check to see if the injectors are working on that bank too. Check fuel pressure & Then check for vacuum leaks

 

Is the check engine light on? Sounds like maybe the cats are clogged..