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GENERALINFORMATIONAND
MAINTENANCE l-15
10. install the air cleaner assembly and the re-
*Wrap shop towels around the fitting that is
tainer bolts.
being dtsconnected to absorb residual fuel in
11. Connect the air intake hose.
the lines.
9. While holding the fuel filter nut with aback-
up wrench, tighten the banjo bolt to 22 ft. Ibs. (30
Nm). Tighten the flare nut to 25 ft. Ibs. (35 Nm), with
12. Attach the solenoid valve.
4. Cover the hose connection with shop towels to
a back-up wrench on the nut.
13. Connect the boost hose.
14. Attach the air flow sensor connector.
prevent any splash of fuel that could be caused by
10. Tighten the filter mounting bolts to 10 ft. Ibs.
residual pressure in the fuel pipe line. Hold the fuel
(14 Nm).
15. Connect the negative battery cable.
11.
\
filter nut securely with a backup wrench, then remove
Connect the negative battery cable. Turn the
REMOVAL &INSTALLATION
the banjo bolt on the engine feed line. Disconnect the
high-pressure fuel line from the filter. Remove and
discard the gaskets.
5. While holding the fuel filter nut securely with a
back-up wrench, loosen the filter feed pipe flare nut
key to the ON position to pressurize the fuel system
and check for leaks.
12. If repairs of a leak are required, remember to
release the fuel pressure before opening the fuel sys-
tern.
u See Figures 43 thru 48
On most vehicles covered by this manual, the fuel
filter is located in the engine compartment, mounted
to the firewall.
Do not use conventional fuel filters, hoses or
clamps when servicing fuel injection sys
terns. They are not compatible with the injec-
tion
system and
could fail, causing personal
injury or damage to the vehicle. Use only
hoses and clamps specifically designed for
fuel injection systems.
1. Properly relieve the fuel system pressure as
outlined in Section 5 of this manual.
on the bottom of the filter. Separate the flare nut con-
nection from the filter. If equipped, remove and dis-
card the gaskets.
6. Remove the mounting bolts and remove
. ,,,. ,.
.a r I,.,< I the
ruer rrrter. II necessary, remove me ruer rrrrer oracket.
To install:
7. Install the filter to its bracket only finger-tight.
Movement of the filter will ease attachment of the fuel
lines.
Ensure that the filter is installed with the flow
arrow in the proper direction. The flow arrow
typically points toward the engine side of the
filter. improper installation of the fuel filter
will cause the vehicle to run poorly.
2. If not already done, disconnect the negative
REMOVAL&INSTALLATION
u See Figures 49, 50, and 51
1, Disconnect the negative battery cable.
2. If necessary for access, remove the air intake
hose and air cleaner assembly.
3. If necessary, unfasten the retaining clamp, then
disconnect the ventilation hose from the PCV valve.
4. Remove the PCV valve from the camshaft
(rocker) cover.
To install:
5. Install the PCV valve into the rocker cover. If
the valve is threaded, tighten the valve until snug.
battery cable.
3. On most models. the iob is made easier if the
air inlet hose and upper air cleaner housing is re-
moved from the vehicle.
*Make sure new O-rings are installed prior
to installation.
8. Insert the filter feed pipe to the lower connec-
tion of the filter and manually screw in the main
pipe's flare nut.
6. Reconnect the ventilation hose to the valve.
7. If removed, install the air intake hose and the
a .ir cleaner assembly.
8. Connect the negative battery cable.
Fig. 43 Use a back-up wrench on the fuel
I
I
93151@3
filter nut when loosening the banjo-bolt on
Fig. 44 After the banjo-bolt is loose, remove I
1 the engine feed line
-
from the fuel filter
93151p93
Fig. 48 Make sure to
use
a back-up wrench
1 when unfastening the main fuel pipe also 1
Fig. 47 Remove the two filter bracket re-
taining bolts . . .
Fig. 45 Make sure to replace the copper
washers on the banjo-bolt fitting
Fig. 48 . . . then remove the filter from the
vehicle
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