Ford F-650 2015 Owner's Manual page 103

102 Starting and Stopping the Engine
Note: Blocked or plugged holes or modification to, or removal of, the
outlet assembly could result in elevated exhaust temperatures that may
result in vehicle or property damage or personal injury.
The exhaust outlet assembly on your vehicle is a uniquely functioning
device that accompanies the DPF assembly. It can help control the
temperature of the exhaust during the DPF regeneration process.
The inlet holes in the side of the assembly are functional. These holes
allow outside air to enter into the outlet assembly. Keep the holes clear
of mud and other foreign material to maintain proper functionality of the
system. One way to keep the holes clear is to spray the outlet assembly
with a hose when washing your vehicle. Failure to keep the functional
holes clear of foreign material may result in blocking or plugging of the
holes.
SWITCHING OFF A DIESEL ENGINE
Allow the engine to idle for three to five minutes before shutting it
down. The larger the engine, the greater the need is for this idling
period.
Note: Try to limit engine idle to 10 minutes. Excessive idling reduces
fuel economy.
ENGINE AUTOMATIC SHUTDOWN (IF EQUIPPED)
WARNING: In the event of engine shutdown, make sure the
vehicle is safely off the road and the problem is remedied prior to
returning to the road. Failure to remove the vehicle from the road
could result in an accident, causing serious injury or death.
This feature either illuminates a light in the instrument cluster or sounds
a tone (or both) indicating that the engine is being shut down due to
high coolant temperature, low engine oil pressure, high diesel particulate
filter soot loading or low engine coolant level. If any of these conditions
exist, the engine automatically shuts down.
If the engine shuts down, you can restart and operate it for 30 seconds
at a time or until you correct the problem. Do not attempt to use this
restarting feature to drive your vehicle very far as serious engine damage
could result.
2015 F-650/750 (f67)
Owners Guide gf, 2nd Printing, April 2014
USA (fus)