Chevrolet 4500HD Series 2019 Manual page 235

234 Driving and Operating
2. Select the correct fuel (See
"Diesel Fuel Requirement and
Fuel System"). Follow any
posted safety rules. Stand to
the side, never above or
opposite the filler opening.
3. Check that the fuel cap is tight,
and see to it that engine oil,
engine coolant in the reservoir,
and washer fluid, etc. are at
proper levels. Then do the
Driver Daily Checklist.
See Owner Checks and Services
0 340.
Driving your vehicle until the fuel
tank is empty may activate the
check engine malfunction indicator
light. You do not need to have your
vehicle checked. After refueling,
perform the following:
Bleed the fuel system.
Start, turn off and restart the
engine three or four times.
The check engine malfunction
indicator light will be cancelled.
Before Starting the Engine
1. The priming pump (1) is
located on the outboard side of
the left frame rail, in front of the
batteries. Place a container
beneath the air bleed plug (2)
to receive fuel, and then fully
loosen the plug.
2. Attach a clear hose onto the air
bleed plug, direct the clear
hose into a catch pan.
3. Pump the priming pump (1) up/
down for 65 times to get most
of the air bubbles out. Note fuel
was drawn into the filter bowl at
around 40 - 50 times.
4. Fully retighten the air bleed
plug (2) and wipe off any fuel
that may have adhered to the
plug or surrounding area.
5. Continue to operate the pump
for 50 times.
6. Start the engine.
7. If the engine does not start,
repeat steps 5 and 6 as
necessary until it does start.
After Starting the Engine
1. Without pressing the
accelerator pedal, start the
engine.
2. After the engine has started,
allow it to idle for about
5 seconds.
3. Fully press the accelerator
pedal and increase the engine
speed to the maximum speed
for 10 seconds. (Repeat this
operation several times.)