2002 JEEP LIBERTY oil type

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Page 1254 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual ENGINE BLOCK
DESCRIPTION
The cylinder block is made of cast iron. The block
is a closed deck design with the left bank forward. To
provide high rigidity and improved NVH an
enhanced compacted graphite

Page 1273 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual OPERATION
Oil from the oil pan is pumped by a gerotor type oil
pump directly mounted to the crankshaft nose. Oil
pressure is controlled by a relief valve mounted
inside the oil pump housing. For lubri

Page 1277 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual ple viscosities such as 5W-30 or 10W-30 in the 3.7L
engines. These are specified with a dual SAE viscos-
ity grade which indicates the cold-to-hot temperature
viscosity range. Select an engine oil tha

Page 1278 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual OIL FILTER
REMOVAL
All engines are equipped with a high quality full-
flow, disposable type oil filter. DaimlerChrysler Cor-
poration recommends a Mopartor equivalent oil
filter be used.
(1) Position

Page 1286 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (1) Position the engine exhaust manifold and gas-
ket on the two studs located on the cylinder head.
Install conical washers and nuts on these studs.
(2) Install remaining conical washers. Starting at

Page 1307 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (1) Inspect air cleaner, induction system and
intake manifold to insure system is dry and clear of
foreign material.
(2) Remove negative battery cable.
(3) Place a shop towel around the spark plugs
wh

Page 1310 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (8) Install the starter.
(9) Connect the crankshaft position sensor.
(10) Install the engine block heater power cable, if
equipped.
CAUTION: The structural cover requires a specific
torque sequence. F

Page 1343 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual LUBRICATION
DESCRIPTION
The lubrication system is a full-flow filtration,
pressure feed type. The oil pump is mounted in the
front engine cover and driven by the crankshaft.
OPERATION
Engine oil drawn