1996 Ford F150 Owner's Manual - Page 373

The following are some of the acts that are considered tampering: u Removing the hood blanket, fender apron absorbers, fender apron barriers, underbody noise shields or material constructed to absorb noise output. governor, so that the engine's speed exceeds the manufacturer's specifications. silencer, air cleaner and/or air cleaner element. u Removing or dismantling the engine speed u Removing the air duct, air intake choke or u Removing or dismantling any of the exhaust system components including the catalyst inlet pipe, muffler, outlet pipe, resonator or diffuser. u Removing the fan shroud. Removing or Maintenance dismantling the fan clutch so that it no longer functions properly. Instructions for maintenance and service of the noise control system have been included in the Maintenance Schedule and Record booklet and in the "General Maintenance Checklist." To aid the noise control system throughout the life of the vehicle, Ford Motor Company recommends that this vehicle should be operated according to the Owner's Guide. When installing replacement parts, use caution not to violate the tampering act as described above. Use the Maintenance Record Log to list any inspections and services performed on the vehicle. 374