Jeep Cherokee 2000 Service Manual - page 872
FUEL PUMP RELAY
The fuel pump relay is located in the Power Distri-
bution Center (PDC) (Fig. 23). Refer to label on PDC
cover for relay location.
REMOVAL
(1) Remove PDC cover.
(2) Remove relay from PDC.
(3) Check condition of relay terminals and PDC
connector terminals for damage or corrosion. Repair
if necessary before installing relay.
(4) Check for pin height (pin height should be the
same for all terminals within the PDC connector).
Repair if necessary before installing relay.
INSTALLATION
(1) Install relay to PDC.
(2) Install cover to PDC.
THROTTLE BODY
A (factory adjusted) set screw is used to mechani-
cally limit the position of the throttle body throttle
plate. Never attempt to adjust the engine idle
speed using this screw. All idle speed functions are
controlled by the Powertrain Control Module (PCM).
REMOVAL
(1) Remove air cleaner tube at throttle body.
(2) Disconnect throttle body electrical connectors
at MAP sensor, IAC motor and TPS (Fig. 24) or (Fig.
25).
(3) Remove all control cables from throttle body
(lever) arm. Refer to the Accelerator Pedal and Throt-
tle Cable section of this group for additional informa-
tion.
(4) Remove four throttle body mounting bolts.
(5) Remove throttle body from intake manifold.
(6) Discard old throttle body-to-intake manifold
gasket.
INSTALLATION
(1) Clean mating surfaces of throttle body and
intake manifold.
(2) Install new throttle body-to-intake manifold
gasket.
(3) Install throttle body to intake manifold.
(4) Install four mounting bolts. Tighten bolts to 11
N·m (100 in. lbs.) torque.
(5) Install control cables.
(6) Install electrical connectors.
(7) Install air cleaner at throttle body.
Fig. 23 Power Distribution Center (PDC)
1 – POWER DISTRIBUTION CENTER (PDC)
Fig. 24 Throttle Body and Sensor Locations—4.0L
Engine
1 – MOUNTING BOLTS (4)
2 – THROTTLE BODY
3 – IAC MOTOR
4 – ELEC. CONN.
5 – TPS
6 – MAP SENSOR
7 – ELEC. CONN.
8 – IAT SENSOR
9 – ELEC. CONN.
14 - 44
FUEL SYSTEM
XJ
REMOVAL AND INSTALLATION (Continued)