Quote:
Originally Posted by Kurt505
After Ford built the 5.4L with the cam phaser issue I'll probably never own another one. I currently have a few Chevy's, a Ford, and a Dodge and so far the Chevy's have proven to be the most reliable. The only problem with the new Dodges is they are now the #1 truck to steal, taking over the championship belt from the Ford.
Like Cat said, they're all good until they break, then they're junk.
Speaking of junk, does anyone know the best solution for a Ford that needs cam phasers? I've got a 2008 Ford with new tires, that's the only reason I'm considering fixing it!
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The whole idea is to monitor amount of use and watch the wear parts, and replace and adjust them before they break; for any mechanical system. Wear parts are designed to wear, and need replacement or adjustment before they fall apart. Hopefully you can find good aftermarket stuff too, which is better than factory stock parts, and has better tolerances and longer life. Keep it healthy and you won't have junk.
Cam phasors adjust the timing of valves based on solenoid-actuated hydraulic control. So all the hydraulic components (i.e. motor oil) of that system have to be pristine. VCT solenoids need to be replaced once in a while. Phasers themselves not so much; although you can always push anything until it breaks. Left and right-bank camshaft position sensors have to be in good shape too. The sensor plugs stick way out of the front of the engine and little wires going to them can easily be torn & broken. Best to clean everything up first and run it for a few weeks to see how much the engine smooths out.
If you have a 5.4 which really has been run hard and put away wet, then you can get replacement kits from Rock Auto or Ford which can replace the wear parts behind the front engine plate and in the heads. That includes cam followers, lash adjusters, and phasors; and timing chains, chain tensioners, upgraded oil pump, and other related bits. If you're pulling the front plate and the head covers, that should all be done as one job.
https://www.youtube.com/watch?v=nQVKnd2r-ww