2003 JEEP GRAND CHEROKEE Coolant Temperature sensor

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Page 1256 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual INSTALLATION
CAUTION: When installing the engine into a vehicle
equipped with an automatic transmission, be care-
ful not to damage the trigger wheel on the engine
flywheel.
(1) Attach a lifting devic

Page 1300 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual INSTALLATION
A gear-type oil pump is mounted at the underside
of the cylinder block opposite the No.4 main bearing.
(1) Install the oil pump on the cylinder block using
a replacement gasket. Tighten t

Page 1315 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual (13) Disconnect the engine block heater power
cable from the block heater.
(14) Lower vehicle.
(15) Remove throttle body resonator assembly and
inlet hose.
(16) Disconnect throttle and speed control c

Page 1316 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual (32) Disconnect body ground strap at the right side
cowl.
NOTE: It will be necessary to support the transmis-
sion in order to remove the engine.
(33) Position a suitable jack under the transmis-
sion

Page 1379 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual INTAKE MANIFOLD
DESCRIPTION
The intake manifold is made of a composite mate-
rial and features long runners which maximizes low
end torque. The intake manifold uses single plane
sealing which consist

Page 1380 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual (6) Remove accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
(7) Disconnect generator electrical connections.
(8) Unbolt the generator and move it away from
the intake

Page 1381 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual (7) Connect throttle cable and speed control cable
to throttle body.
(8) Install fuel rail (Refer to 14 - FUEL SYSTEM/
FUEL DELIVERY/FUEL RAIL - INSTALLATION).
(9) Install ignition coil towers (Refer

Page 1454 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual (18) 4.0L Engine: Verify wire harness connector is
firmly connected to Engine Coolant Temperature
(ECT) sensor (Fig. 11).(19) 4.7L Engine: Verify MAP and Engine Coolant
Temperature (ECT) sensor electr
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