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SERVICING AND MAINTENANCE 409
(Continued)
NOTE:
Over-compression of the seal due to over-tight-
ening of the drain will damage the seal, cause a
leak, and require the entire sensor to be
replaced.
3. Turn the ignition switch to OFF.
The sensor drain should not be over-tightened
during normal service operations to avoid
internal damage and future fuel leaks. The
drain should be closed and secured without the
use of tools.
If more than a couple ounces/milliliters of fuel
have been drained, follow the directions for
“Priming If The Engine Has Run Out Of Fuel.”
ENGINE MOUNTED FUEL FILTER
R
EPLACEMENT — DIESEL ENGINE
NOTE:
Using a fuel filter that does not meet the
manufacturer's filtration and water sepa-
rating requirements can severely impact fuel
system life and reliability.
The engine mounted filter housing is
equipped with a No-Filter-No-Run (NFNR)
feature. Engine will not run if:
a. No filter is installed.
b. Inferior/Non-approved filter is used. Use
of OEM filter is required to ensure vehicle
will run.
Engine Mounted Fuel Filter Assembly
1. Ensure engine is turned off.
2. Place drain pan under the fuel filter drain
hose.
3. Open the water drain valve a quarter turn
counterclockwise and completely drain fuel
and water into the approved container.
4. Close the water drain valve.
5. Remove lid using a socket or strap wrench.
Rotate counterclockwise for removal.
Remove used o-ring and discard it.
6. Remove the used filter cartridge from the
housing and dispose of according to your
local regulations.
7. Wipe clean the sealing surfaces of the lid
and housing.
1 — Drain Valve
CAUTION!
Diesel fuel will damage blacktop paving
surfaces. Drain the filter into an appro-
priate container.
Do not prefill the fuel filter when installing a
new fuel filter. There is a possibility debris
could be introduced into the fuel filter
during this action. It is best to install the
filter dry and allow the in-tank lift pump to
prime the fuel system.
CAUTION! (Continued)
7
20_DJD2_OM_EN_USC_t.book Page 409
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