2011 Ford F350 Super Duty Super Cab Diesel Supplement 5th Printing - Page 59
2011 Ford F350 Super Duty Super Cab Manual
Page 59 highlights
Maintenance and Specifications serves multiple functions. First it serves as an acoustic device to attenuate exhaust noise. Second it provides an exit path for the exhaust from the vehicle. It also is designed to help control the temperature of the exhaust during DPF regeneration events. The visible holes in each leg of the twin tip and the holes under the shield just inboard of the right rear tire(s) are functional. The holes need to be kept clear of mud/debris or foreign material to maintain proper function of the exhaust system. Clean and remove debris or foreign material if present as needed. Spraying with a hose during regular washing of vehicle should help keep holes clean and clear of debris or foreign material. Note: Additions of aftermarket devices or modifications to the exhaust system can reduce the effectiveness of the exhaust system as well as cause damage to the exhaust system and/or engine. These actions may also affect the vehicle's warranty. See the Warranty Guide for more information. WARNING: Failure to maintain the functional holes, in the tailpipe section of the exhaust, clean and free of debris or foreign material may result in the holes becoming blocked or plugged. Do not modify or remove the tail-pipe section. Blocked or plugged holes or removal/modification of the system could result in elevated exhaust gas temperatures which may result in vehicle/property damage or personal injury. WARNING: The normal operating temperature of the exhaust system is very high. Never work around or attempt to repair any part of the exhaust system until it has cooled. Use special care when working around the diesel oxidation catalytic converter and/or the diesel particulate filter (DPF). The diesel oxidation catalytic converter and/or the DPF heats up to a high temperature after only a short period of engine operation and can stay hot even after the engine is turned off. Failure to follow these instructions may result in personal injury. EMISSION CONTROL SYSTEM(S) LAWS In the U.S. federal law and certain state laws prohibit removing or rendering inoperative emission control system(s). Similar federal or provincial laws may apply in Canada. Ford recommends against any vehicle modification without determining applicable law. 59 2011 Diesel (eco) Supplement, 5th Printing USA (fus)