Section 2 (6.4L Engine (Service Information)): Removal
If the original engine has experienced a catastrophic failure or an individual failure with the piston, cylinder bore, engine block, valve or valve seat, the intake manifold MUST be replaced with a new manifold.
If the engine encounters a catastrophic failure, the engine oil cooler and lines must be replaced or damage to the new engine or components could result.
- Disconnect and isolate the negative battery cable.
- Remove the front skid plate. Refer to REMOVAL .
- Remove the transmission skid plate. Refer to PLATE, SKID, TRANSMISSION .
- Drain the cooling system. Refer to DRAINING .
- Drain the engine oil. Refer to STANDARD PROCEDURE - ENGINE OIL SERVICE .
- Recover the A/C refrigerant. Refer to REFRIGERANT SYSTEM RECOVERY .
- Remove the air cleaner housing assembly. Refer to BODY, AIR CLEANER, REMOVAL .
- Lift the engine cover retaining grommets off the ball studs and remove the engine covers (1).
- Perform the fuel system pressure release procedure. Refer to FUEL SYSTEM PRESSURE RELEASE .
- Remove the hood. Refer to HOOD, REMOVAL .
- Remove the cowl panel cover and support. Refer to COVER, COWL PANEL, REMOVAL .
- Remove the strut tower support.
- Remove the upper radiator hose clamp (1) and remove the upper radiator hose (2).
- Remove the oil cooler hose clamp (3) and remove the oil cooler hose (4).
- Remove the heater tube retaining bolt (1).
- Remove the coolant temperature sensor electrical connector (2).
- Lift the heater tube (3) out of the water pump.
- Disconnect the camshaft position sensor electrical connector (1).
- Remove all ignition coil electrical connectors (1) and position the harness aside.
- Remove the intake manifold. Refer to REMOVAL .
- Remove the Variable Valve Timing Solenoid (VVTS). Refer to SOLENOID, VARIABLE VALVE TIMING (VVTS), INSTALLATION .NOTE:
The ignition capacitor (2) is located near the left rear corner of the intake manifold (3).
- Remove the ignition capacitor (1) electrical connector (2).
- Remove the ground wires from the rear of each cylinder head.CAUTION:
Do not let the tensioner arm snap back to the freearm position, severe damage may occur to the tensioner.
- Rotate the accessory drive belt tensioner (8) clockwise until it contacts the stop and remove the accessory drive belt (4), then slowly rotate the tensioner into the freearm position.NOTE:
It is not necessary to disconnect power steering pump hoses from power steering pump for power steering pump removal.
- Remove the three power steering pump (4) mounting bolts (2) through the access holes in the pulley (3) and position the pump aside.
- Disconnect the up stream O2 sensor electrical connectors.
- Remove the cooling fan. Refer to 3.6L/5.7L/6.4L .
- Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE
.
- Disconnect the cooling lines (3 and 4) at the oil cooler (2).
- Remove the lower radiator hose (1).
- Remove the front driveshaft. Refer to REMOVAL .
- Remove the both catalytic converters from the vehicle. Refer to CONVERTER, CATALYTIC, REMOVAL .
- Remove the starter. Refer to 6.4L
.
- Position the transmission crossmember (1) into position and loosely install the bolts (2).
- Lower the transmission into position onto the crossmember.NOTE:
Two knock sensors are used. Each sensor is bolted to the outside of the engine block below the exhaust manifold.
- Remove the heat shield from the right side knock sensor (shield snaps on/off sensor).
- Disconnect the knock sensor electrical connectors (3).NOTE:
The Crankshaft Position (CKP) sensor is located at the right-rear side of the engine block.
- Remove the CKP sensor electrical connector (1).
- Remove the transmission inspection cover retaining bolt (2) and remove the inspection cover (1).
- Automatic transmission equipped vehicles, rotate the crankshaft in clockwise direction until the torque converter bolts (1) are accessible and remove the flexplate to torque converter bolts (1).
- Remove the oil pan to transmission bolts (1).CAUTION:
While carefully separating the engine from the transmission and removing the engine from the vehicle, constant checks must be made to ensure no damage to other components or wiring harnesses occur throughout the removal procedure.
- Disconnect the transmission oil cooler lines from their retainers at the oil pan.
- Remove the transmission bell housing to engine block bolts (2).
- Remove the A/C compressor and position aside. Refer to COMPRESSOR, A/C, REMOVAL .
- Remove the generator. Refer to 6.4L
.
- Remove the oil pressure sensor electrical connector (1).
- Remove the oil temperature sensor electrical connector (1).
- Remove the heater hoses (1, 2).NOTE:
It is not necessary to remove the hoses from the coolant bottle for coolant bottle removal.
- Remove the coolant bottle and position the coolant bottle (1) aside.
- Unfasten the wire harness mounted on the right hand inner fender panel and position aside.NOTE:
Left side shown, right side similar.
- Remove both left/right engine mount heat shield (4) retaining nuts (3) and remove the heat shields.
- Remove both left/right engine mount to frame retaining bolts (2).
- Using a suitable jack, support the transmission.NOTE:
Do not use air tools to install engine lift fixture.
- Install the engine lift fixture (special tool #8984C, Fixture, Engine Lifting) (2) and adapter (special tool #8984-UPD, Adapter, Engine Lift) (4).
- Using a suitable engine hoist, separate the engine from the transmission and remove the engine from the engine compartment.
- Secure the engine onto a suitable engine stand.