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?

 

I doubt its the phasers, I would pull the right valve cover and have a gander at the valvetrain. It sounds like it dropped a valve. Was it making any ticking noise before?

 

You sir win the prize of the week

I think I found the problem....

#1 cylinder dropped the front intake valve, broke the lifter and rocker arm





#3 cylinder rear intake valve broke the rocker arm, the other half of the roller is missing





I fished around in a few of the puddles oil in head looking for parts, the magnet came back fury





An added bonus... I found a oil jug seal floating around under the valve cover.

 

It really amazes me how people can ignore abnormal engine noises. Those rockers must have been making noise for a while before they gave up.

 

Nice find on the seal! The best I've ever found was what looked like a cigarette butt

 

I got one better than that. Back when the 2005 Mustang first came out we had one that would not take fuel. After about a week of checking everything possible we found a rolled up dollar bill that an assembly line worker stuffed into the filler neck,

 

That's better than last years xmas bonus!

 

It was decided to fix the truck with a reman head and new timing components. The owner of the truck came up with some money and I got most of the parts last week.

I installed a reman right head, new VCT solenoids, new timing chains and tensioners and right cam phaser.













I got the timing cover on today but don't remember where the top bolts go. I think the ones with threaded studs and nuts go on the left side for the power steering bracket.

 

I replied to your PM. How did the piston look? Also, I would highly recommend checking the other side rocker for any loose rollers. I bet you will find a few with play in the bearing. You don't want the same thing to happen to the other side after all of this work. It wouldn't be a bad idea to replace all of the rockers on the driver's side. They all have the same miles on them as the right side did.

 

I got your PM, thank you.


piston looked good... I will check the rollers on left head.

 

Engine has been back together for over a week now. when I first got it running, it I thought I had mis-timed the cams, because it ran really rough. After some guidance from a several Ford Master techs, I finally figured out the # 5 spark plug was not firing. New spark plug installed and it runs much better now.