jd50i

relax, not many complaints on this.

reg boulette

Sorry for being challenged - but - what is a phaser? Thanks in advance.

YYCFX4

Phasers are common and versatile Phased array Pulsed energy projectile weapons, first seen in the original Star Trek series and later seen or referenced in almost all subsequent films and television spin-offs. Phasers come in a wide range of sizes, ranging from small arms to starship-mounted weaponry

Or a cam phaser:

Ford’s cam phasers are specially designed, computer-controlled cam gears for all 2005 and newer Ford Modular 3 Valve engines that have the ability to adjust camshaft position while the engine is running. Since the modular engine uses two camshafts, two cam phasers are used.

reg boulette

Thanks! (I knew about the Star Trek ones)

Apples

hahaha... nice Star Trek reference, there. Hee!

Basically, cam phasers rotate camshafts to change their timing relative to the crankshaft, aiding idle emissions, then torque and horsepower. Variable Camshaft Timing.

iplayloudly

I had my cam phasers replaced under warranty at 5,000 miles. I hope I never have to deal with it again. Took my dealer nearly a month to figure out the problem.

tomjv

What are the symptoms?
TomJV

seadragon

I thought Ford fixed this problem when they moved to the 5.0 engine from the 5.4 back in 2011?

iplayloudly

On a warm startup, the engine would run rough for a few seconds, then smooth out. After that it was fine. Only happened when the engine was already warmed up. Never had a problem 1st thing in the morning.

I found my original post about it from a year ago:
https://www.f150forum.com/f118/5-0-r...n-warm-349340/

FordLvr35

That's exactly what was happening with this last one. Was jumping from 5 to 60 degrees retarded. But she's all fixed now and purring like a kitten.