4.6L Archives - Engine Builder Magazine
Service Issues on Ford 4.6L SOHC & DOHC Engines

In 2005, Ford introduced a three-valve (3V) SOHC version of the 4.6L for the newly restyled retro-look Mustang. Major changes included the use of two intake valves and one exhaust valve per cylinder to increase air velocity, torque and power, variable cam timing and a weight-saving aluminum cylinder block. Ford’s overhead cam 4.6L V8 engine has been

Damage Control: Removing Problem Plugs on Ford Modular Engines

Ford recognized a plug removal problem on some of its 4.6L 3v, 5.4L 3V and 6.8L 3V engines and issued a tech bulletin — TSB 08-7-6 — to address the problems. This article supersedes TSB 08-1-9. Ford’s Modular engine, used in various Ford, Lincoln and Mercury products during the mid- to late-2000’s, has been known to give techs a hard