Black plate (33,1)
DURAMAX Diesel Engine (LML/LGH) - 2011
Driving and Operating
9-33
Fuel Filter Replacement
Pickup Models
If you want to change the fuel filter
yourself, here's how to do it:
{
WARNING
Diesel fuel is flammable. It could
start a fire if something ignites it,
and you could be burned. Do not
let it get on hot engine parts, and
keep matches or other ignition
sources away.
First, drain any water from the filter
following the procedure for draining
water listed previously.
The vehicle's engine must be off
until the end of this procedure.
The fuel filter is located in the
engine compartment on the
passenger side of the vehicle.
1. Apply the parking brake.
Access the fuel filter through the
passenger side wheel house
opening. It is not necessary to
remove all of the wheel liner
fasteners.
2. Remove only the necessary
fasteners to allow the rear of the
wheel liner to be lowered
enough for fuel filter access.
3. Unplug the water sensor wire
connected to the fuel filter and
unscrew the filter element.
4. Remove the filter element.
If there is any dirt on the filter
sealing surface, clean it off.
Remove and reuse the water
sensor float switch located on
the bottom of the fuel filter.
5. Install the new filter element.
6. Reinstall and tighten the filter
container and reconnect the
water sensor wire to the filter.
7. Reposition the wheel liner.
8. Install and tighten fasteners.
9. Use the fuel filter priming
procedure earlier in this section
to prime the fuel filter.
10. Start the engine and let it idle
for five minutes. Check the fuel
filter and air bleed valve for
leaks.
11. Reset the fuel filter monitor.
See
Fuel System Messages on
page 5
‑
12
for more information.
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