Among those acts presumed to constitute tampering are the following
acts listed:
Vehicle System Acts
Acoustical Shielding Removal of noise shields, hood
blanket, tunnel liner or acoustical
absorptive material.
Engine Removal or rendering inoperative
the engine speed governor so as to
allow engine speed to exceed
manufacturer specifications.
Removal of engine mounted noise
shield or oil pan enclosure.
Engine Air Induction System Removal of the air duct, silencer,
air cleaner, and/or air cleaner
element and baffle in air cleaner;
re-indexing of air cleaner.
Exhaust System Removal or rendering inoperative
exhaust system components
including the catalytic converter -
muffler assembly, inlet pipe, outlet
pipe, resonator and flexpipe.
Rotation of horizontal exhaust
system directional outlet pipe to
cause the exhaust to be emitted in
a direction other than the
orientation the vehicle was
originally produced with.
Engine Cooling System Removal or rendering inoperative
the fan clutch. Removal or
modification of the fan shroud.
Replacing a fixed fan with a fan of
increased diameter, different
number of blades or different pitch
width.
2008 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
231
