Running Out Of Fuel - GMC Duramax Diesel 2015 Owner's Manual

5. Repeat the above steps until the
engine starts.
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

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.
If the engine has stalled due to
running out of fuel, try the following
steps to restart it:
1. If parked on a level surface, add
at least 7.6 L (2 gal) of fuel. Up
to 18.9 L (5 gal) may be needed
if parked on a slope.
2. Follow the fuel priming
procedure earlier in this section
to prime the fuel filter.
3. Turn the ignition key to START
for 10 to 15 seconds at a time
until the engine starts. If the
Driving and Operating
engine tries to run, but does not
run smoothly, increase the rpm
slightly by using the accelerator
pedal. This will help force air
through the system.
4. Return to Step 2 if the engine
stalls and will not restart.
5. After a few attempts, if the
engine still does not start, see
your dealer.
Van Models
If the engine has stalled due to
running out of fuel, try to restart it:
1. If parked on a level surface, add
at least 3.8 L (1 gal) of fuel. Up
to 18.9 L (5 gal) may be needed
if parked on a slope.
2. Follow the vehicle fuel system
priming procedure earlier in this
section to re-prime the system
and restart the engine.
If the check engine light comes on
due to running out of fuel, it may
take a few drive cycles to clear.
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