Jeep Cherokee 2000 Service Manual - page 362
(4) Remove distributor rotor from distributor shaft.
(5) Lift camshaft position sensor assembly from
distributor housing (Fig. 27).
INSTALLATION
(1) Install camshaft position sensor to distributor.
Align sensor into notch on distributor housing.
(2) Connect wiring harness.
(3) Install rotor.
(4) Install
distributor
cap.
Tighten
mounting
screws.
CAMSHAFT POSITION SENSOR—4.0L ENGINE
The Camshaft Position Sensor (CMP) on the 4.0L
6–cylinder engine is bolted to the top of the oil pump
drive shaft assembly (Fig. 28). The sensor and drive
shaft assembly is located on the right side of the
engine near the oil filter (Fig. 29).
The rotational position of oil pump drive deter-
mines fuel synchronization only. It does not deter-
mine ignition timing.
NOTE: Do not attempt to rotate the oil pump drive
to modify ignition timing.
Two
different
procedures
are
needed
for
removal and installation. The first procedure will
detail removal and installation of the sensor only.
The second procedure will detail removal and instal-
lation of the sensor and oil pump drive shaft assem-
bly. The second procedure is to be used if the engine
has been disassembled.
An internal oil seal is used in the drive shaft hous-
ing that prevents engine oil at the bottom of the sen-
sor. The seal is not serviceable.
REMOVAL—SENSOR ONLY
(1) Disconnect electrical connector at CMP sensor
(Fig. 29).
(2) Remove 2 sensor mounting bolts (Fig. 28) or
(Fig. 29).
(3) Remove sensor from oil pump drive.
INSTALLATION—SENSOR ONLY
(1) Install sensor to oil pump drive.
(2) Install 2 sensor mounting bolts and tighten to
2 N·m (15 in. lbs.) torque.
(3) Connect electrical connector to CMP sensor.
REMOVAL—OIL PUMP DRIVE AND SENSOR
If the CMP and oil pump drive are to be
removed and installed, do not allow engine
crankshaft or camshaft to rotate. CMP sensor
relationship will be lost.
(1) Disconnect electrical connector at CMP sensor
(Fig. 29).
(2) Remove 2 sensor mounting bolts (Fig. 28) or
(Fig. 29).
(3) Remove sensor from oil pump drive.
Fig. 27 Camshaft Position Sensor—2.5L Engine
1 – SYNC SIGNAL GENERATOR
2 – CAMSHAFT POSITION SENSOR
3 – PULSE RING
4 – DISTRIBUTOR ASSEMBLY
Fig. 28 CMP and Oil Pump Drive Shaft—4.0L Engine
1 – CAMSHAFT POSITION SENSOR
2 – MOUNTING BOLTS (2)
3 – PULSE RING
4 – DRIVE GEAR (TO CAMSHAFT)
5 – OIL PUMP DRIVESHAFT
6 – SENSOR BASE (OIL PUMP DRIVESHAFT ASSEMBLY)
XJ
IGNITION SYSTEM
8D - 15
REMOVAL AND INSTALLATION (Continued)