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3-valve 5.4 L and 6.8 L engines built before 10/9/07 and 3-valve 4.6 Ls built before 11/30/07 found in many 2004–2008 Ford, Lincoln, and Mercury vehicles have an issue with difficult-to-remove spark plugs, which can cause part of the spark plug to become seized in the cylinder head.
2012–present; The 3.2 is an I5 engine used in the Ford Transit, the Ford Ranger, Ford Everest, Mazda BT-50 and the Vivarail. For the North American-spec Transit, * the 3.2 L Duratorq is modified to meet American and Canadian emissions standards and is branded as a Power Stroke engine.
The 4.6 L (280 cu in) InTech V8 carried on as before, but now came with a distributorless coil-on-plug ignition system, eliminating the use of high-voltage spark plug wires. Some of the internal components of the 4R70W automatic transmission were reinforced for greater durability and reliability in late 1997 models and all 1998 models.
Ford was also having problems meeting demand for its 2.3 L OHC engine, which was used in a multitude of models worldwide. In anticipation of another engine shortage, the Ford engine plant in Lima, Ohio, which was already producing the 2.3-liter OHC engine, decided they could modify the Falcon inline six block casting molds to remove cylinders 4 ...
Misfires have also been reported, as leaking anti-freeze may seep down into the spark plug wells. [22] This resulted in a class action lawsuit against Ford. [ 23 ] Beginning in 2003, a revised intake manifold with a bolt-on aluminum thermostat housing and anti-freeze crossover was produced and fitted to all new vehicles in an attempt to remedy ...
Ford developed a supercharged version of the 3.8 L Essex V6 that was used in two Ford MN12 platform cars beginning in the late 1980s. A belt driven Eaton M90 roots-type supercharger spinning at 2.6 times engine rpm, to a maximum of 15,000 rpm at the engine's 6000 rpm redline, provided up to 12 psi (0.83 bar) of boost. [7]
The EDIS-6 module is used on the following vehicles equipped with the 4.0L Ford Cologne V6 engine and 3.8L Ford Essex V6 engine between 1990 and 1997: Ford Ranger / Mazda B-Series; Ford Explorer / Mazda Navajo; Ford Aerostar; Ford Mustang (3.8L V6) Ford Thunderbird Supercoupe; Ford Taurus SHO V6 (1989–1995) Ford Windstar
The head castings and valve head sizes from 1969 to 1976 were different, notably in passages for air injection and spark plug diameters (1969–1974 18 mm, 1975 and up 14 mm). From 1977 onward, the 351W shared the same head casting as the 302, differing only in bolt hole diameters (7/16 inch for the 302, 1/2 inch for the 351W).