Chrysler Pacifica. Manual — part 730

(6) Remove the 4 mounting bolts from the fuel rail

(Fig. 21).

(7) Lift fuel rail straight up off of cylinder head.
(8) Remove retaining clips from fuel injectors at

fuel rail.

(9) Remove fuel injector from fuel rail.

3.8L

(1) Release fuel pressure, refer to Fuel Pressure

Release Procedure in this section.

(2) Disconnect the negative battery cable.
(3) Remove air cleaner housing and inlet hose.

(4) Remove engine cover.
(5) Disconnect the Throttle Position Sensor (Fig.

22).

(6) Disconnect the Idle Air Control.
(7) Disconnect the purge line.
(8) Disconnect

the

throttle

and

speed

control

cables (if equipped).

(9) Unlock and disconnect the MAP sensor (Fig.

23).

(10) Disconnect the vacuum lines.
(11) Remove the EGR tube, refer to (Refer to 25 -

EMISSIONS CONTROL/EXHAUST GAS RECIRCU-
LATION/TUBE - REMOVAL).

Fig. 21 FUEL RAIL

Fig. 22 THROTTLE BODY

1 - Purge Line
2 - Throttle Position Sensor
3 - Idle Air Control Motor

Fig. 23 MAP SENSOR

1 - MAP Sensor
2 - Vacuum Lines

Fig. 24 INTAKE MANIFOLD REMOVED

CS

FUEL DELIVERY

14 - 11

FUEL RAIL (Continued)

(12) Remove the upper intake manifold (Fig. 24),

(Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANI-
FOLD - REMOVAL).

(13) Fuel Rail, wiring harness and injectors (Fig.

25).

(14) Injector and electrical connector (Fig. 26).

(15) If the injector connectors are not tagged with

their cylinder number, tag them to identify the cor-
rect cylinder (Fig. 27).

(16) Remove the 4 mounting bolts from the fuel

rail (Fig. 28).

Fig. 25 FUEL RAIL

Fig. 26 FUEL INJECTOR LOCATION

Fig. 27 FUEL INJECTOR WIRING HARNESS

Fig. 28 FUEL RAIL BOLTS LOCATIONS

14 - 12

FUEL DELIVERY

CS

FUEL RAIL (Continued)

(17) Disconnect the fuel supply line from the fuel

rail (Fig. 29).

(18) Lift fuel rail straight up off of cylinder head

(Fig. 30).

(19) Remove retaining clips from fuel injectors at

fuel rail (Fig. 31).

(20) Remove fuel injector from fuel rail (Fig. 32).

Fig. 29 FUEL LINE DISCONNECT FITTING

Fig. 30 FUEL RAIL ASSEMBLY

Fig. 31 FUEL INJECTOR CLIP

Fig. 32 FUEL INJECTOR AND CLIP

CS

FUEL DELIVERY

14 - 13

FUEL RAIL (Continued)

INSTALLATION

3.5L

(1) Lightly lubricate the fuel injector O-rings (Fig.

33) with a couple drops of clean engine oil.

(2) Install retaining clips on fuel injectors.

(3) Push injectors into fuel injector rail until clips

are in the correct position (Fig. 34).

(4) Position fuel rail over cylinder heads, and push

rail into place. Tighten fuel rail mounting bolts to 28
N·m (250 in. lbs.) torque.

(5) Connect the fuel supply tube quick connect fit-

ting to the fuel rail (Fig. 35). Refer to Quick Connect
Fittings in the Fuel Delivery Section.

(6) Connect and lock the electrical connectors to

the fuel injectors (Fig. 36).

(7) Install intake manifold plenum, (Refer to 9 -

ENGINE/MANIFOLDS/INTAKE

MANIFOLD

-

INSTALLATION).

(8) Connect negative cable to battery.

Fig. 33 FUEL INJECTOR O-RING

Fig. 34 INSTALLING FUEL INJECTOR

Fig. 35 FUEL LINE QUICK CONNECTOR

Fig. 36 FUEL RAIL

14 - 14

FUEL DELIVERY

CS

FUEL RAIL (Continued)