Jeep cherokee 2000 Service Manual page 724

9 - 34 2.5L ENGINE
REMOVAL AND INSTALLATION (Continued)
(5) Perform fuel system pressure release procedure
(refer to Group 14, Fuel System for correct proce-
dure).
(6) Disconnect fuel supply tube from the fuel rail.
Some fuel lines require a special tool for removal/in-
stallation (refer to Group 14, Fuel System - Quick
Connect Fittings).
(7) Disconnect the accelerator cable, the cruise
control cable (if equipped), and the transmission line
pressure cable (if equipped) from the throttle body
and remove them from the cable bracket.
CAUTION: When disconnecting the cruise control
connector at the throttle body, DO NOT pry the con-
nector off with pliers or screwdriver. Use finger
pressure only. Prying the connector off could break
it.
(8) Disconnect the electrical connectors. Pull the
harnesses away from the manifold and secure them
so they do not interfere with the manifold removal
and installation process.
• The throttle position sensor.
• The idle air control motor.
• The coolant temperature sensor at the thermo-
stat.
• The manifold air temperature sensor at the
intake manifold.
• The fuel injectors.
• The oxygen sensor.
(9) Disconnect the crankcase ventilation (CCV)
vacuum hose and manifold absolute pressure (MAP)
sensor vacuum hose connector at the intake mani-
fold.
(10) Disconnect vacuum hose from vacuum port on
the intake manifold.
(11) Disconnect CCV hose at the cylinder head
cover (Fig. 50).
(12) Remove the molded vacuum harness.
(13) Disconnect the vacuum brake booster hose at
the intake manifold.
(14) Remove bolts 2 through 5 securing the intake
manifold to the cylinder head (Fig. 51). Slightly
loosen bolt No.1 and nuts 6 and 7.
(15) Remove the intake manifold and gaskets.
Drain the coolant from the manifold.
INSTALLATION
(1) Clean the intake manifold and cylinder head
mating surfaces. DO NOT allow foreign material
to enter either the intake manifold or the ports
in the cylinder head.
(2) Install the new intake manifold gasket over the
locating dowels.
(3) Position the manifold in place and finger
tighten the mounting bolts.
Fig. 50 Crankcase Ventilation (CCV) Hose—2.5L
1 – AIR INLET FITTING
2 – AIR FILTER COVER
3 – FIXED ORIFICE FITTING
(4) Tighten the fasteners in sequence and to the
specified torque (Fig. 51).
• Fastener No.1—Tighten to 41 N·m (30 ft. lbs.)
torque.
• Fasteners Nos.2 through 5—Tighten to 31 N·m
(23 ft. lbs.) torque.
• Fasteners Nos.6 and 7—Tighten to 23 N·m (17
ft. lbs.) torque.
(5) Connect fuel supply tube to the fuel rail inlet.
Push tube until a "click" is heard. Before connect-
ing the fuel line to the fuel rail replace the
O-rings at the quick-connect fuel line coupling.
(6) Pull out on the fuel supply tube to ensure that
it is locked in place.
(7) Connect the molded vacuum hoses to the vac-
uum port on the intake manifold and the cylinder
head cover.
(8) Connect the electrical connectors.
• The throttle position sensor.
• The idle air control motor.
• The coolant temperature sensor at the thermo-
stat housing.
• The fuel injectors.
• The air manifold temperature sensor.
• The oxygen sensor.
(9) Connect the CCV vacuum hose and MAP sen-
sor vacuum hose connectors to the throttle body.
Engine
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