Jeep Liberty KJ. Manual — part 907
PAN-OIL
VALVE-OIL PRESSURE RELIEF
UNIT-OIL PRESSURE SENDING
PUMP-OIL
JET-OIL
SEPARATOR-OIL
MANIFOLD-INTAKE
MANIFOLD-EXHAUST
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1677
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1677
TIMING-VALVE
STANDARD PROCEDURE - LOCKING ENGINE
90 DEGREES AFTER TDC . . . . . . . . . . . . . . . . . 1678
SHAFT-BALANCE
COVER(S)-TIMING BELT AND CHAIN
REMOVAL - TIMING BELT INNER COVER . . 1683
REMOVAL - TIMING BELT OUTER COVER . . 1684
INSTALLATION - TIMING BELT INNER
COVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1684
INSTALLATION - TIMING BELT OUTER
COVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1685
PULLEY-TIMING BELT IDLER
SPROCKET(S)-TIMING BELT AND CHAIN
TENSIONER AND PULLEY-TIMING BELT AND
ADJUSTMENT - TIMING BELT TENSIONER . 1691
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ENGINE - 2.8L DIESEL
KJ
ENGINE - 2.8L DIESEL
DESCRIPTION
2.8L COMMON RAIL DIESEL ENGINE
The 2.8L (2776cc) four-cylinder “common rail” direct
injection engine is an in-line overhead valve design.
The engine utilize a cast iron cylinder block with a
closed lower structure and tunnel housing for the
crankshaft. The engine has a one piece aluminum cyl-
inder head with four valves per cylinder and dual over-
head
cam
shafts.
The
2.8L
is
turbocharged,
intercooled and also equipped with a EGR cooler..
The identification stamp for the 2.8L is located on the
left side of the engine block, above the starter. The
engine code label is located on the front timing cover
and is the same as the engine I.D. and serial number.
There is also a fuel system label on the front timing
cover used for fuel system identification during ECM
programming.
DESCRIPTION
SPECIFICATION
Displacement 2.8L
2.8L (2776cc)
Bore
94.00 mm
Stroke
100.00 mm
Compression Ratio
17.5:1
Vacuum at Idle
700 mm/Hg (27.5 In/Hg)
Belt Tension
Automatic Belt Tensioner
Thermostat Opening
80°C ± 2°C
Generator Rating
Denso 12V-95A
Cooling System Capacity
13.8 Liters W/O Auxiliary Heater
16.6 Liters With Auxiliary Heater
Engine Oil Capacity
6.0L (6.3 Qt.) W/Filter Change
Timing System
Belt Driven DOHC Overhead Camshafts
Air Intake
Dry Filter With Turbocharger and Charge Air Cooler
Fuel Supply
Gear - Style Pump Incorporated In The High Pressure
Pump
Fuel System
Direct Fuel Injection Common Rail System
Combustion Cycle
4 Stroke
Cylinder Compression Difference Between Cylinders
5 Bar (72.5 psi.)
Cooling System
Water Cooling
Injection Pump
CP3 2nd. Generation Common Rail System
Lubrication
Pressure Lubricated By Rotary Pump
KJ
ENGINE - 2.8L DIESEL
9 - 1587
DESCRIPTION
SPECIFICATION
Minimum Oil Pressure (Warm)
0.7 Bar (10 psi.) at Idle
2 Bar (29 psi) at 3800 rpm
Engine Rotation
Clockwise Viewed From Front Cover
ENGINE COVER
The insulated engine cover (2) is made of plastic and
used cosmetically to cover the top of the engine and
greatly reduce engine noise.
REMOVAL
ENGINE - 2.8L DIESEL
NOTE: The export manual transmissions must be removed from the vehicle before removing the engine.
1. Disconnect negative battery cable.
2. Disconnect under hood lamp from the hood assembly.
3. Drain cooling system (Refer to 7 - COOLING/ENGINE/COOLANT - STANDARD PROCEDURE).
4. Remove engine cover (Refer to 9 - ENGINE - REMOVAL).
5. Remove air cleaner assembly from the engine bay.
6. Recover refrigerant from A/C system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE).
7. Disconnect high side refrigerant line from the upper radiator support bracket.
8. Remove upper radiator support bracket retaining bolts and remove the support bracket.
9. Remove front grille and head lamp panel.
10. Remove from fascia.
11. Remove high side refrigerant line retaining nut and remove the line from the condenser assembly. Position the
line out of the way.
9 - 1588
ENGINE - 2.8L DIESEL
KJ
12. Remove cooling fan and fan drive viscous clutch assembly.
13. Remove fan shroud retaining bolts and remove fan assembly and shroud together.
14. Disconnect charge air cooler hoses from charge air cooler.
15. Disconnect engine coolant hoses from engine assembly.
16. Disconnect coolant reservoir hose from radiator.
17. Remove low side refrigerant line retaining nut and remove line from the condenser assembly. Position the line
out of the way.
18. Remove condenser assembly retaining bolts and remove condenser from the vehicle.
19. Remove power steering cooler retaining bolts and unclip air deflectors from both sides of the radiator (cooling
module) assembly.
20. Remove cooling module assembly.
21. Remove charge air cooler hose from the intake manifold.
22. Remove high side refrigerant line from A/C compressor and remove high side line from the engine bay.
23. Remove coolant reservoir retaining nuts and clips retaining electrical harness, position reservoir aside to allow
access to remaining hoses.
24. Disconnect remaining hoses from coolant reservoir and remove reservoir.
25. Remove accessory drive belt from the engine (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
26. Accessing bolts through the pump pulley, remove power steering pump retaining bolts and position pump aside
with lines still attached.
27. Remove engine cover mounting bracket retaining bolts and remove the bracket from the top of the engine.
28. Disconnect heater core inlet and outlet hoses from the heater core.
29. Remove generator from engine (Refer to 8 - ELECTRICAL/CHARGING/GENERATOR - REMOVAL). This will
provide access to the wires beneath it.
30. Remove low side refrigerant line retaining nuts from accumulator and compressor and remove from engine bay.
31. Trace engine wiring and disconnect electrical connectors and tie straps one at a time until all wiring is discon-
nected from the engine assembly. When all the engine electrical harness is disconnected position the harness
aside.
32. Remove coolant elbow retaining bolts from rear of the water pump.
33. Disconnect coolant hoses leading from the coolant elbow and remove coolant elbow from engine.
34. Remove oil cooler adapter.
35. Raise and support the vehicle.
36. Remove oil filter and adaptor assembly.
37. Remove starter motor from engine (Refer to 8 - ELECTRICAL/STARTING/STARTER MOTOR - REMOVAL).
38. Remove chassis ground wire above starter mounting location on the engine block.
39. Support the transmission with a jackstand.
40. Remove the flex plate access cover.
41. Remove the flex plate fasteners.
42. Remove transmission cross member fasteners.
43. Lower the transmission.
44. Remove the upper transmission to engine fasteners.
45. Raise the transmission.
46. Install the transmission cross member fasteners.
47. Remove the transmission jack.
48. Remove exhaust inlet pipe retaining bolts and disconnect exhaust pipe from turbocharger.
49. Remove transmission to engine retaining bolts.
50. Separate transmission cooler line(s) from retainer.
51. Connect a suitable lifting device to engine assembly.
52. Remove right side engine mount retaining nut.
KJ
ENGINE - 2.8L DIESEL
9 - 1589
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