Section 28 (6.2L Engine (Service Information)): Removal
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.
- Perform the fuel system pressure release procedure. Refer to STANDARD PROCEDURE .
- Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
- Remove the front skid plate. Refer to PLATE, SKID, TRANSFER CASE, REMOVAL .
- Remove the transmission skid plate. Refer to PLATE, SKID, TRANSFER CASE, REMOVAL .
- Drain the cooling system. Refer to STANDARD PROCEDURE .
- Drain the engine oil. Refer to STANDARD PROCEDURE .
- Remove the front drive shaft. Refer to SHAFT, DRIVE, REAR, REMOVAL .
- Remove the starter. Refer to STARTER, REMOVAL .
- Remove the A/C compressor. Refer to COMPRESSOR, A/C, REMOVAL
.NOTE:
Left side shown in the illustration, 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).
- Remove the transmission inspection cover retaining bolt (2) and remove the inspection cover (1).
- 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).
- Disconnect the oxygen sensor wire harness connectors.
- Remove both left and right catalytic converter to exhaust manifold fasteners. Refer to CONVERTER, CATALYTIC, REMOVAL
.
- Disconnect the transmission oil cooler lines from their retainers at the oil pan (1).
- Disconnect the wire harness connectors at the frame.
- Use a commercially available low profile 3/4" quick release tool to disconnect the oil filter adapter quick connectors (1, 2) and then remove the oil cooler hoses from the oil filter adapter.
- Remove the cooling fan. Refer to FAN, COOLING, REMOVAL .
- Remove the lower radiator hose.NOTE:
Two knock sensors are used. Each sensor is bolted to the outside of the engine block below the exhaust manifold.
NOTE:Left side shown in the illustration, right side similar.
- Remove the heat shields from both knock sensors (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 wire harness connector (1).
- Remove the generator support bracket to engine mount retaining nut (1).
- Remove the generator support bracket retaining bolt (2) and remove the support bracket (3).
- Lower the vehicle.
- Remove the generator. Refer to GENERATOR, REMOVAL
.
- Remove the oil pressure sensor electrical connector (1).
- Remove the oil temperature wire harness connector (1).
- Disconnect the transmission wire harness.
- Disconnect the camshaft position sensor (2) wire harness connector (1).
- Remove the front fascia. Refer to FASCIA, FRONT, REMOVAL .
- Remove the supercharger assembly. Refer to SUPERCHARGER, REMOVAL .
- Remove the heater hoses from the coolant tubes (3).
- Remove the supercharger coolant reservoir. Refer to RESERVOIR, COOLANT, REMOVAL
.
- Remove all ignition coil wire harness connectors (2) and position the harness aside.
- Remove the ignition capacitor (2) wire harness connectors (1).
- Remove the ground wires from the rear of each cylinder head.
- Disconnect the wire harness connectors from the Powertrain Control Module (PCM).
- Disconnect purge line and position aside.
- Disconnect the engine harness and position harness aside.
- Support the transmission.
- Remove remaining transmission to engine bolts (4).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.
- Remove the Variable Valve Timing Solenoid (VVTS). Refer to SOLENOID, VARIABLE VALVE TIMING (VVTS), EXHAUST, REMOVAL .
- Using a suitable jack, support the transmission.NOTE:
Do not use air tools to install engine lift fixture.
- Install the (special tool #8984B, Fixture, Engine Lifting) (1) and (special tool #2013800091, Adapter, Engine Lifting Bracket) (3).
- 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.