Black plate (10,1)
DURAMAX Diesel Engine (LML/LGH) - 2011
9-10
Driving and Operating
Fuel Operated Heater
(FOH) (Van Models Only)
If the vehicle includes an FOH, it will
enhance heater performance and
will reduce the amount of time it
takes to warm the inside of the
vehicle in cold conditions below or
equal to 4°C (39°F). The FOH is
installed on the frame rail on the
driver side of the vehicle and uses
diesel fuel to heat the engine
coolant, which warms up the
passenger cabin air.
The FOH will turn on if all of the
following conditions exist:
.
Outside air temperature is below
or equal to 4°C (39° F).
.
Fuel level is greater or equal to
12.5 percent of the total fuel tank
volume.
.
The engine is running.
.
Coolant temperature is less than
75°C (167° F).
Parking Over Things
That Burn
{
WARNING
Things that can burn could touch
hot exhaust parts under the
vehicle and ignite. Do not park
over papers, leaves, dry grass,
or other things that can burn.
Engine Exhaust
Diesel Particulate Filter
(Exhaust Filter)
The vehicle has a Diesel Particulate
Filter (DPF) as part of the exhaust
system to reduce vehicle emissions.
The DPF requires a unique exhaust
tailpipe with an exhaust cooler.
The exhaust cooler mixes air
with the exhaust to lower the
temperature before it leaves the
tailpipe.
The DPF, the tailpipe, or other
exhaust system components must
not be altered. Inspect regularly and
clean any mud or dirt from the
exhaust cooler, especially where
the exhaust cooler connects to
the tailpipe and the openings
where fresh air enters the cooler.
See
“
Exhaust System Inspection
”
under
Scheduled Maintenance on
page 11
‑
2
.
All manuals and user guides at all-guides.com
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