Running Out Of Fuel - GMC duramax diesel 2016 Supplement Manual

6. Locate the fuel filter priming
pump on top of the fuel filter
housing. Push down and let it
return up several times.
7. Continue priming the pump
until a small amount of fuel
comes from the vent valve.
This indicates the filter is full of
fuel and the system should be
primed.
8. Close the vent valve. Clean
any fuel off the fuel filter. Try to
start the engine. If the engine
stalls, operate the priming
pump several times in between
starting attempts. Allow the
engine to idle for a few minutes
after it starts. Check the filter
for leaks.
To Prime 4-Cylinder Pickup and
Van Models
There is an electric priming pump
that will bring fuel to the engine and
eliminate air in the fuel lines. To
prime the engine:
1. Correct any condition that
caused the loss of prime.
2. Turn the ignition to ON/RUN for
30 seconds. Do not start the
engine. The fuel pump will start
priming.
3. Turn the ignition off, then back
to start, and crank the engine
for 15 seconds.
4. If the engine does not start,
repeat Steps 2 and 3 until the
engine starts.
If the engine does not start
after repeating Steps 2 and 3
three times, turn the ignition
key off for 60 seconds.
5. Repeat the above steps until
the engine starts.
Driving and Operating
6. If the engine starts, but does
not run smoothly, increase the
engine speed slightly.
7. If the engine starts and runs
but stalls again, turn the
ignition off for 60 seconds.
8. When the engine starts, let it
idle for a few minutes and
check the filter for any leaks.
To Prime the Fuel Operated Heater
(FOH) Fuel Lines (Van Models)
See your dealer or qualified
technician if the FOH fuel lines need
to be primed.

Running Out of Fuel

8-Cylinder Pickup Models
Warning
Diesel fuel is combustible. It could
start a fire if it gets on hot engine
parts. You could be burned. Catch
any fuel from the air bleed valve,
and wipe up any spilled fuel with
a cloth.
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