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July 1, 2010 Service bulletin

Ford: supply/return lines installation at high pressure pump-revised washer for trucks equipped with 6.4L...

Ford technical service bulletin SB-21434 for 2008-2010 Ford F-150, 2008-2010 Ford F-250 SD and 2008-2009 Ford F-250 and others.

Bulletin number
SB-21434
Component
Engine and engine cooling: engine: diesel
Summary
Ford: supply/return lines installation at high pressure pump-revised washer for trucks equipped with 6.4l engines. When installing supply or return lines at high pressure pump on diesel engines, do not use the bonded style washer (w302870), use only the hybrid style washer (w303659).

Owners of these vehicles have filed 526 complaints in the engine category.

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