Engine Checks Before Operating; Parking Over Things That Burn - Chevrolet Low Cab Forward 2023 Manual

Engine Checks Before Operating

Checks Before Operating
Allow the engine to warm up before placing
the engine under heavy load driving. While
the engine is warming up under light load,
the following checks should be made:
1. Observe the red engine oil pressure
warning light. The light should go out
when the engine is running. If it stays
on, shut the engine off and find the
cause.
2. Look at the engine coolant temperature
gauge. If the gauge reaches the H (HOT)
area, stop the engine and find the cause
of the overheating.
3. Check that the battery warning light has
gone out. The light should go off and
stay off at normal idle speeds. If the
light does not go out or comes on
during normal operation, have the
charging system checked.
Warning
To reduce the chance of personal injury
and/or vehicle damage due to engine
overheating, never leave the engine idling
without an alert driver present. If the
engine should overheat, as indicated by
the engine coolant temperature gauge,
immediate action is required to correct
the condition. Continued operation of the
engine, even for a short time, may result
in a fire.
Do not engage the exhaust brake while
the engine is idling as this may cause
engine overheating. You and others could
be seriously injured.
Avoid Unnecessary Idling of the Diesel Engine
If the diesel engine idles too long, the
engine coolant temperature will fall below
the operating range. Low engine operating
temperature causes several conditions that
are harmful to engine operation and life.
Driving and Operating
Incomplete combustion of fuel in an engine
that is not fully warmed-up causes crankcase
dilution and forms lacquer and gummy
deposits on valves, pistons, and rings. It also
causes rapid accumulation of sludge within
the engine.

Parking over Things That Burn

Warning
Exhaust parts and gases become very hot
when the DPF is being regenerated.
Parking over flammable items could allow
them to touch hot exhaust parts under
your vehicle and cause them to ignite. Do
not park over papers, leaves, grass or
other things that can burn. Make sure
there is not flammable material (for
example, grass, waste paper, oil or old
tires) on or near the DPF or exhaust
system. You and others could be
seriously injured.
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