Fuel Drain Tubes; Fuel Filter/Water Separator; Draining Wter From Filter Bowl; Fuel Filter Removal/Installation - Jeep 200 Cherokee Service Manual

14 - 14 FUEL SYSTEM—2.5L DIESEL ENGINE
REMOVAL AND INSTALLATION (Continued)

FUEL DRAIN TUBES

The fuel drain tubes (Fig. 24) are low–pressure
type.
Pull each tube from the injector for removal. Push
on for installation. Clamps are not required for these
tubes.
Fig. 24 Fuel Injectors and Drain Tubes

FUEL FILTER/WATER SEPARATOR

The fuel filter/water separator is located in the
engine compartment on the left side near the shock
tower. (Fig. 25).
Fig. 25 Fuel Filter/Water Separator Location
The fuel filter/water separator assembly contains
the fuel filter, fuel heater element, and fuel drain
valve (Fig. 25).
DRAINING WATER FROM FILTER BOWL
Moisture (water) collects at the bottom of the filter/
separator in a plastic bowl. Water entering the fuel
injection pump can cause serious damage to the
pump. Note that the bulb will be illuminated for
approximately 2 seconds each time the key is
2000 JEEP CHEROKEE
initially placed in the ON position. This is done
for a bulb check.
WARNING: DO NOT ATTEMPT TO DRAIN WATER
FROM THE FILTER/SEPARATOR WITH THE ENGINE
HOT.
(1) The bottom of the filter/separator bowl is
equipped with a drain valve (Fig. 25). The drain
valve is equipped with a fitting. Attach a piece of
rubber hose to this fitting. This hose is to be used as
a drain hose.
(2) Place a drain pan under the drain hose.
(3) Open the vent valve at top of fuel filter/water
separator.
(4) With the engine not running, open the drain
valve by unscrewing the valve (drain valve has
right hand threads) from the filter/separator bowl.
To gain access to this fitting, the two filter–to–
mounting bracket nuts (Fig. 25) may have to be loos-
ened a few turns.
(5) Hold the drain open until clean fuel exits the
drain.
(6) After draining, close drain valve.
(7) Remove rubber drain hose.
(8) Dispose of mixture in drain pan according to
applicable local or federal regulations.
FUEL FILTER REMOVAL
(1) Drain all fuel and/or water from fuel filter/wa-
ter separator assembly. Refer to the previous Drain-
ing Water From Filter Bowl.
(2) Unplug the electrical connectors at bottom of
plastic bowl.
(3) Remove plastic bowl from bottom of fuel filter
(unscrews).
(4) Remove fuel filter from bottom of filter base
(unscrews).
FUEL FILTER INSTALLATION
(1) Clean bottom of fuel filter base.
(2) Apply clean diesel fuel to new fuel filter gasket.
(3) Install and tighten filter to filter base. The bev-
eled part of the rubber gasket should be facing up
towards the filter base.
(4) Clean the inside of bowl with a soap and water
mixture before installation. Carefully clean any resi-
due between the two metal probes at the top of the
water–in–fuel sensor. Do not use chemical cleaners
as damage to the plastic bowl may result.
(5) Install filter bowl to bottom of filter.
(6) Install the electrical connectors at bottom of
bowl.
(7) Tighten the filter–to–mounting bracket nuts
(Fig. 25) to 28 N·m (250 in. lbs.) torque.
XJ