I am working on a 2006 F-150 wtih 5.4L 3v engine for a customer. I rebuilt the transmission for him, which is working great now. I drove the truck for 2 days after the rebuild to make sure everything was working. It sat for 2 days, then I started it to move it this morning. After starting the engine made a very loud clatter noise, started running rough, started stalling and finally died, cranks by no start. code p0301 is stored for cylinder #1 misfire. It sounds very much like it jumped time.

would cam phazers cause this? if so, how do I test them?

 

Had a 2006 with the same problem. I had to run a motorcraft oil filter and I used 20w50 oil and it would rum like it should. If i ran an aftermarket filter and used the 5w20 oil it would sound like a diesel.

 

I had 2006 that would jump time , idle rough, stalled. was idling very low, replace throttle control body, works great now

 

Forgot I made 2 posts about this...

Anyway, I found the problem. 2 rocker arms broke, it ate a lifter and dropped a #1 intake valve.

https://www.ford-trucks.com/forums/1...-problems.html

 

woo... engine is back together and running

https://www.ford-trucks.com/forums/1...-problems.html