Jeep Liberty KJ. Manual — part 927
12. Torque engine mount through bolts to 88N·m (65 lbs. ft.).
13. Install front axle assembly (Refer to 3 - DIFFERENTIAL & DRIVELINE/FRONT AXLE - INSTALLATION).
14. Install front axle skid plate (if equipped) (Refer to 13 - FRAME & BUMPERS/FRAME/FRONT SKID PLATE -
INSTALLATION).
15. Install both front wheel and tire assemblies (Refer to 22 - TIRES/WHEELS/WHEELS - STANDARD PROCE-
DURE) tighten to 115–155 N·m (85–115 lbs. ft.).
NOTE: When removing engine support fixture, care must be taken not to damage the hood ajar switch
mounted to the right inner fender well (if equipped).
16. Lower the vehicle and remove the engine support fixture.
17. Refill engine to proper level with the correct viscosity engine oil.
18. Connect negative battery cable.
19. Start engine and inspect for leaks.
20. Install engine cover (Refer to 9 - ENGINE - INSTALLATION).
21. Perform complete front wheel alignment (Refer to 2 - SUSPENSION/WHEEL ALIGNMENT - STANDARD PRO-
CEDURE).
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ENGINE - 2.8L DIESEL
KJ
VALVE-OIL PRESSURE RELIEF
DESCRIPTION
The oil pressure relief valve mounts in the front of the engine block and is used to control oil flow through the
engines lubrication system.
REMOVAL
1. Remove engine oil pan (Refer to 9 - ENGINE/LU-
BRICATION/OIL PAN - REMOVAL).
2. Using special tool VM.1054, remove oil pressure
relief valve from engine block.
KJ
ENGINE - 2.8L DIESEL
9 - 1667
INSTALLATION
1. Thoroughly clean all components and relief valve
pocket in cylinder block.
2. Lubricate all oil pressure relief valve components
with engine oil.
3. Install oil pressure relief valve plunger, spring, and
cap.
WARNING: DO NOT strike the oil pressure valve
cap with a hammer
CAUTION: Care must be taken not to interfere with
the engine front cover or the oil pick up tube when
seating the oil relief valve cap. Failure to install
the valve cap flush with the engine block surface
correctly will result in low oil pressure and possi-
ble engine damage.
4. Using a driver with a flat surface, carefully tap the
oil pressure relief valve cap into place until the cap
seats flush with engine block.
5. Install oil pan (Refer to 9 - ENGINE/LUBRICATION/OIL PAN - INSTALLATION).
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ENGINE - 2.8L DIESEL
KJ
UNIT-OIL PRESSURE SENDING
DESCRIPTION
The oil pressure switch is located on the right side of the engine block. The switch screws into the engines main oil
gallery.
OPERATION
The oil pressure sending unit uses three circuits. They are:
•
A signal circuit to the ECM.
•
A sensor ground circuit through the ECM.
•
A 5 volt reference circuit from the ECM.
The oil pressure sending unit returns a voltage signal back to the ECM relating oil pressure. Ground for the sensor
is supplied by the ECM.
KJ
ENGINE - 2.8L DIESEL
9 - 1669
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