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June 1, 2018 Service bulletin

Various vehicles equipped with a 4.6L, 5.4L, 6.8L modular 3 valve engine built on or before 8-Jan-2016 may...

Ford technical service bulletin SSM 47331 for 2004-2010 Ford F-150, 2006-2010 Ford Explorer and 2005-2015 Ford Expedition and others.

Bulletin number
SSM 47331
Component
Equipment
Summary
Various vehicles equipped with a 4.6L, 5.4L, 6.8L modular 3 valve engine built on or before 8-Jan-2016 may exhibit symptoms that may include upper end engine noise, rough running, misfire and/or engine damage. If diagnosis leads to only camshaft/camshaft roller follower(s) requiring replacement, replace all of the camshaft roller followers on both banks/cylinder heads with part number 3L3Z-6564-A, not just the faulty roller follower(s). When replacing the camshaft roller followers, refer to Workshop Manual (WSM), Section 303-01.

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