The screwdriver trick does work on the 5.4. Unfortunately you do have to remove the cam to remove the lash adjusters, which involves removing the cam phaser. At minimum, you would need the wedge tool and an inch-lb wrench. Ford says to replace lash adjusters and phasers. If you have the time and money it would be best to also replace the timing chains, guides and related components. Can be purchased as a kit. FordTechMakuLoco.com has some good videos. Best also to replace bolts.
Last edited by tiller83; 07-29-2014 at 02:41 PM.
Reason: wasn't done. stpid phone