Chevrolet/GMC 2013 DURAMAX Diesel Service Manual Page 53

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Black plate (29,1)
Chevrolet/GMC DURAMAX Diesel Supplement - 2013 - crc - 8/10/12
Driving and Operating 9-29
Water in Fuel Message Chart
If the WATER IN FUEL SERVICE
REQUIRED message comes on,
use this chart.
Problem
Recommended
Action
Message comes
on but does not
remain on after
an ignition
cycle.
Water separator
is approximately
half full. Drain
water as soon
as possible.
Water level may
continue to
increase.
Message remains on after an
ignition cycle:
At temperatures
above freezing.
Drain fuel filter
immediately.
If no water can
be drained and
message stays
on, see your
dealer for
assistance.
Problem
Recommended
Action
At temperatures
below freezing.
Drain fuel filter
immediately.
If no water can
be drained,
water may be
frozen in water
drain system or
fuel lines. Move
the vehicle to a
warm location to
thaw out, and
then drain filter
system.
Immediately
after refueling,
large amount of
water possibly
pumped into
fuel tank.
Fuel tank
purging
required. See
your dealer for
assistance.
Notice: Driving when this
warning indicator is on, can
damage the fuel injection system
and the engine. If the indicator
comes on right after a refuel, it
means water was pumped into
the fuel tank. Turn off the engine
immediately. Then, have the water
drained at once.
To drain water:
1. Stop and park the vehicle in a
safe place. Turn off the engine
and apply the parking brake.
2. Remove the fuel cap.
Pickup
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