Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Remove the oil fill cap.

NOTE:

Leave the oil filter in place, or oil will continue to drip.

Drain the engine oil. Engine Oil and Oil Filter Replacement (RWD) , or Engine Oil and Oil Filter Replacement (AWD)
Disconnect the battery. Battery Negative Cable Disconnection and Connection
Lift up on the front of the intake manifold cover (1).
Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Remove
Disconnect the evaporative emission canister purge tube quick disconnects (1). Plastic Collar Quick Connect Fitting Service
Disconnect the evaporative emission canister purge tube (2) from the retainer (3).
Retainer (1) - Unclip [3x]
Engine Wiring Harness (2) - Reposition
Oil Level Indicator (1) - Remove
Electrical Connector (1) @ Oil Level Indicator Tube (3) - Unclip
Oil Level Indicator Tube Bracket Bolt (2) - Remove
Oil Level Indicator Tube (1) - Remove
Oil Level Indicator Tube Seal (2) - Remove and DISCARD
Use a suitable tool to rotate the drive belt tensioner (1) counterclockwise and hold.
Accessory Drive Primary Belt (1) - Remove
Slowly release tension on the drive belt tensioner.
Raise and support the vehicle. Lifting and Jacking the Vehicle
Battery Negative Cable Nut (1) @ Starter Stud - Remove
Engine Wiring Harness Retainer (2) - Disengage [2x]
Auxiliary Generator Battery Jumper Cable (3) - Remove
Electrical Connector (1) - Disconnect
Battery Positive Cable Nut (1) @ Starter Solenoid - Remove
Auxiliary Generator Battery Jumper Cable (2) - Remove
Starter Stud (1) - Remove
Starter Bolt (2) - Remove [2x]
Starter (3) - Remove
NOTE:
The timing pin (3) is installed into the flexplate for engine timing procedures, it can be damaged if torque is applied to the flexplate with the timing pin engaged. The timing pin must be placed in the retracted position using the handle (1) and twisting to locked position. The slide part (4) to be installed to the flexplate when torque is applied to the flexplate or crankshaft balancer bolt.

Install the slide (4) from the EN-52476 Flywheel Lock and Alignment Tool (1) to the automatic transmission flexplate.
Lower the vehicle.
Crankshaft Balancer Bolt (1) - Remove and DISCARD
Crankshaft Balancer (2) - Remove
Crankshaft Balancer Bolt (1) - Install and hand tighten
Engine Front Cover Bolt (1) - Remove [9x]
Engine Front Cover (2) - Remove and DISCARD
Camshaft Cover Opening 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 bolt (2) of the EN-52462-A Camshaft Alignment Tool (1) into the camshaft carrier and tighten to secure the tool to the camshaft carrier.
Lock the EN-52462-A Camshaft Alignment Tool (1) by rotating the levers in direction of arrow.
NOTE:
The timing pin (3) is installed into the flexplate for engine timing procedures, it can be damaged if torque is applied to the flexplate with the timing pin engaged. The timing pin must be placed in the retracted position using the handle (1) and twisting to locked position. The slide part (4) to be installed to the flexplate when torque is applied to the flexplate or crankshaft balancer bolt.

Remove the slide (4) from the EN-52476 Flywheel Lock and Alignment Tool (1) from the automatic transmission flexplate and install the timing pin (3) by releasing the handle (1).
Disconnect the 2 electrical connectors from the camshaft position actuator solenoids.
Retainer (1) @ Timing Chain Upper Cover (2) - Unclip [6x]
Engine Wiring Harness (3) - Reposition
Camshaft Position Actuator Valve Solenoid Bolt (1) - Remove [2x]
Camshaft Position Actuator Valve Solenoid (2) - Remove
Camshaft Position Actuator Magnet Gasket (3) - Remove and DISCARD
Camshaft Position Actuator Valve Solenoid Bolt (1) - Remove [2x]
Camshaft Position Actuator Valve Solenoid (2) - Remove
Camshaft Position Actuator Magnet Gasket (3) - Remove and DISCARD
Timing Chain Upper Cover Bolt-M6 (3) - Remove
Timing Chain Upper Cover Bolt-M5 (2) - Remove [11x]
Timing Chain Upper Cover (2) - Remove
Timing Belt Front Upper Cover Seal (1) - Remove and DISCARD
Mark (1) both actuator sprockets, timing chain, and the camshaft housing cover from the center of the bolt upward as shown with a paint marker or equivalent to help with installation.
Install the EN-52461 Cam Phaser Torque Reaction Tool (2) to the 2 EN-52461 - 100 Adapter Cam Phaser Torque Reaction Tool (3).
Hand tighten the 2 bolts (1, 4) of EN-52461 Cam Phaser Torque Reaction Tool.
Install the EN-52461 Cam Phaser Torque Reaction Tool (5) along with the 2 EN-52461 Cam Phaser Torque Reaction Tool (2, 3) to the camshaft carrier.
Tighten the 2 bolts (1, 4) of EN-52461 - 100 Adapter Cam Phaser Torque Reaction Tool.
Tighten the 2 bolts from the EN-52461 Cam Phaser Torque Reaction Tool to the 2 EN-52461 Cam Phaser Torque Reaction Tool that were hand tightened.
Install the EN-52461 - 1 Holder (1) to the holes in the camshaft sprocket.
Check that the EN-52461 - 1 Holder (1) sits correctly in the hole of the camshaft sprocket.
To take tension of the actuators and loosen timing chain. Turn the exhaust side counter clockwise to 6 N.m (53 lb in) and tighten bolt (3) just enough to hold the EN-52461 - 1 Holder (1) in place.
Turn the intake side counter clockwise to 6 N.m (53 lb in) and tighten bolt (4) just enough to hold the EN-52461 - 1 Holder (1) in place.
Camshaft Sprocket Bolt (1) - Remove and DISCARD [2x]
Bolt (3, 4) - Loosen [2x]
CAUTION:
Hold the camshaft sprocket firmly and squarely during camshaft sprocket bolt removal/installation. Failure to do so may result in damage to the inside of the camshaft sprocket.

Hold the intake camshaft sprocket (1) with hand from underneath the EN-52461 Cam Phaser Torque Reaction Tool (2) and pull out the EN-52461 - 1 Holder (2) and the intake camshaft sprocket will drop down in hand so you can remove it.
Hold the exhaust camshaft sprocket (1) with hand from underneath the EN-52461 Cam Phaser Torque Reaction Tool (2) and pull out the EN-52461 - 1 Holder (2) and the exhaust camshaft sprocket will drop down in hand so you can remove it.
Timing Chain (1) - Reposition
Timing Chain Guide Bolt (1) - Remove [2x]
Timing Chain Guide (2) - Remove
Timing Chain Tensioner Bolt (1) - Remove [2x]

NOTE:

The timing chain tensioner plunger is spring loaded, hold the plunger in place as tensioner is removed to prevent losing components of the timing chain tensioner.

Timing Chain Tensioner (2) - Remove
Remove the timing chain tensioner plunger (1) from the timing chain tensioner body (2).
NOTE:
The ratchet mechanism will lock into place when inward pressure is released after it is turned clockwise until it is fully retracted.

Use the J-45027-1 Tensioner Tool Handle (1) to press the ratchet mechanism of the timing chain tensioner plunger (2) inward while rotating it clockwise.

NOTE:

If the ratchet mechanism does not lock into place and begins to extend outward, reapply inward pressure with clockwise rotation until the ratchet mechanism will not rotate further, then release into the locked position.

Release pressure on the ratchet mechanism of the timing chain plunger assembly (2) until it locks into place.
Remove the J-45027-1 Tensioner Tool Handle (1).
Install the timing chain plunger assembly (1) into the timing chain tensioner body (2).
NOTE:
Applying pressure to the timing chain tensioner plunger assembly will unlock the tensioner, it will then fully extend if pressure is released prior to installing the EN-955-10A Locking Pin and will need to be reset again.

Push in and hold the timing chain tensioner plunger assembly, insert the EN-955-10A Locking Pin (1) into the timing chain tensioner (2), then release the timing chain tensioner plunger assembly.