Removal Procedure
- Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
- Remove the oil fill cap.
Intake Manifold Cover Bolt (1) - Remove [2x]
- Lift up on the front of the intake manifold cover (2).
Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Remove
Intake Manifold Cover Bolt (1) - Remove
Intake Manifold Cover Insulator (1) - Remove
Electrical Connector (1) - Disconnect [2x]
- Retainer (2) - Unclip [5x]
- Engine Wiring Harness (3) - Reposition
- Positive Crankcase Ventilation Tube (4) - Disconnect - Plastic Collar Quick Connect Fitting Service
Retainer (1) - Unclip
Camshaft Position Actuator Magnet Bolt (1) - Remove [4x]
- Camshaft Position Actuator Magnet (2) - Remove [2x]
- Camshaft Position Actuator Magnet Gasket (3) - Remove and DISCARD [2x]
Timing Chain Upper Cover Bolt (1) - Remove [9x]
- Timing Chain Upper Cover Bolt (2) - Remove
- Timing Chain Upper Cover (3) - Remove
- Timing Chain Upper Cover Seal (4) - Remove and DISCARD
Camshaft Cover Core Hole Plug (1) - Remove [2x]
- NOTE:
Rotate the engine using the crankshaft balancer until the locking pins of the EN-52462-A Camshaft Alignment Tool (1) drop into the slots in the camshafts.
EN-52462-A Camshaft Alignment Tool (1) - Install
- Insert the EN-52462-A Camshaft Alignment Tool bolt (2) into the camshaft carrier and tighten to secure the tool to the camshaft carrier.
Rotate both handles (4) of the EN-52462-A Camshaft Alignment Tool towards the rear of the engine as shown.
- EN-52461-200 Camshaft Torque Reaction Tool 2.7L Adapter (2) - Install [2x]
- Install and tighten the 2 EN-52461-200 Camshaft Torque Reaction Tool 2.7L Adapter bolts (3) to secure the EN-52461-200 Camshaft Torque Reaction Tool 2.7L Adapters (2) to the cylinder head.
EN-52461 Camshaft Torque Reaction Tool (1) @ EN-52461-200 Camshaft Torque Reaction Tool 2.7L Adapter (2) - Install
- Install and tighten the 2 EN-52461 Camshaft Torque Reaction Tool bolts (3).
Engage the tangs of the EN-52461 Camshaft Torque Reaction Tool (1) to the intake and exhaust camshaft position actuator slots as shown.
- Tighten the EN-52461 Camshaft Torque Reaction Tool bolts (2) to lock the actuators in place.
- NOTE:
It is only necessary to loosen the camshaft position actuator valve solenoid bolt that is defective, or that is installed into an actuator that is being removed. Do NOT attempt to remove the camshaft position actuator valve solenoid bolt at this step.
Loosen the camshaft position actuator valve solenoid bolts (1) as necessary.
- The camshaft position actuator valve solenoid bolt (1) is loosened or removed.
- The EN-52461 Camshaft Torque Reaction Tool bolts (2, 4) are loosened.
- Loosen the EN-52461 Camshaft Torque Reaction Tool bolt (2) to un-lock the intake actuator.
Remove timing chain tension from the camshaft position actuators and tighten the lower portion of the timing chain around the crankshaft sprocket.
- Use a wrench to turn the EN-52461 Camshaft Torque Reaction Tool (1) counter-clockwise 6 N.m (53 lb in), then hold.
- Tighten the EN-52461 Camshaft Torque Reaction Tool bolt (2) to lock the intake actuator securely in place.
- Remove the wrench from EN-52461 Camshaft Torque Reaction Tool (1).
- Loosen the EN-52461 Camshaft Torque Reaction Tool bolt (3) to un-lock the exhaust actuator.
- Use a wrench to turn the EN-52461 Camshaft Torque Reaction Tool (4) clockwise 6 N.m (53 lb in), then hold.
- Tighten the EN-52461 Camshaft Torque Reaction Tool bolt (3) to lock the exhaust actuator securely in place.
- Remove the wrench from EN-52461 Camshaft Torque Reaction Tool (4).
NOTE:Ensure the EN-52461 Camshaft Torque Reaction Tool bolt (2) is tightened enough that EN-52461 Camshaft Torque Reaction Tool (1) is firmly clamped and will not slip.
NOTE:Ensure the EN-52461 Camshaft Torque Reaction Tool bolt (3) is tightened enough that EN-52461 Camshaft Torque Reaction Tool (4) is firmly clamped and will not slip.
EN-52436 Timing Chain Tensioner Retention Tool (1) @ Timing Chain (2) - Install
Relieve timing chain tension from the camshaft position actuators.
- The camshaft position actuator valve solenoid bolt is loosened or removed.
- The EN-52461 Camshaft Torque Reaction Tool bolts (2, 3) are loosened.
- Loosen the EN-52461 Camshaft Torque Reaction Tool bolt (2) to release the intake actuator.
- Tighten the EN-52461 Camshaft Torque Reaction Tool bolt (2) to lock the intake actuator securely in place.
- Loosen the EN-52461 Camshaft Torque Reaction Tool bolt (3) to release the Exhaust actuator.
- Tighten the EN-52461 Camshaft Torque Reaction Tool bolt (3) to lock the Exhaust actuator securely in place.
NOTE:Pressure must be applied towards the engine on the EN-52461 Camshaft Torque Reaction Tool at points (1, 4) prior to and during any time the following two conditions are simultaneously met.
- NOTE:
Only remove the camshaft position actuator valve bolts that are defective, or as necessary to remove their corresponding actuators.
Remove the camshaft position actuator valve solenoid bolts (1) as necessary and DISCARD.
- NOTE:
Hold the bottom of the actuator while disengaging the torque reaction tool to prevent the actuator from dropping.
Loosen the bolt (1) holding in the actuator to be removed, then slide the barrel (2) of the torque reaction tool away from the actuator being removed.
- Remove the exhaust camshaft position actuator (3) or the intake camshaft position actuator (4) as necessary.
Ensure the camshaft carrier and cylinder head face are clean and free from RTV prior to installing the EN-52461-200 Camshaft Torque Reaction Tool 2.7L Adapter.
Hold the camshaft position actuator firmly and squarely during camshaft position actuator valve solenoid bolt removal/installation. Failure to do so may result in damage to the inside of the camshaft position actuator.
Pressure must be applied towards the engine on the EN-52461 Camshaft Torque Reaction Tool at points (3) prior to and during any time the following two conditions are simultaneously met.