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.

Drain the engine oil. Engine Oil and Oil Filter Replacement
Disconnect the negative battery cable. Battery Negative Cable Disconnection and Connection
Drain the charge air cooling system. Refer to Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
Plenum Front Panel (1) - Remove - Plenum Front Panel Removal and Installation (with Blackwing) , or Plenum Front Panel Removal and Installation (without Blackwing)
Radiator Air Upper Baffle Retainer (1) - Remove [5x]
Radiator Air Upper Baffle Bolt (2) - Remove [2x]
Radiator Air Upper Baffle- Upper (3) - Remove
Remove all wiring harness retainers from the front end sheet metal cross braces.
Front End Sheet Metal Cross Brace Bolt- Left Side and Right Side (1) - Remove [6x]
Front Suspension Strut Upper Mounting Nut- Left Side and Right Side (2) - Remove [4x]
Front End Sheet Metal Cross Brace- Left Side and Right Side (3) - Remove [2x]
NOTE:
Left side shown, right side similar.

Front End Sheet Metal Diagonal Brace Nut- Right Side (1) - Remove
Front End Sheet Metal Cross Brace Bolt- Right Side (2) - Remove
Front End Sheet Metal Diagonal Brace- Right Side (3) - Remove
Place shop cloths beneath the radiator surge tank outlet pipe connection points to absorb any potential coolant spillage.
Radiator Surge Tank Inlet Hose Clamp (1) @ Radiator Surge Tank Inlet Hose - Disengage - Hose Clamp Replacement Guidelines - Spring Type
Radiator Surge Tank Inlet Hose Clip (2) @ Engine Control Module Bracket - Remove
Radiator Surge Tank Inlet Hose Clamp (4) @ Engine Radiator - Disengage - Hose Clamp Replacement Guidelines - Spring Type
Radiator Surge Tank Outlet Pipe (3) - Remove
Remove the shop cloths from beneath the radiator surge tank outlet pipe.
CAUTION:
Always turn the ignition off when installing or removing the ECM connectors in order to prevent damage to the components.
CAUTION:
- Turn the ignition OFF when installing or removing the control module connectors and disconnecting or reconnecting the power to the control module in order to prevent internal control module damage.
- Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables, or when charging the vehicle battery.
- In order to prevent any possible electrostatic discharge damage to the control module, do no touch the connector pins or the soldered components on the circuit board.
- Remove any debris from around the control module connector surfaces before servicing the control module. Inspect the control module connector gaskets, and ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the control module.
Disconnect the electrical connectors.
Use a suitable tool to release the locking tabs securing the engine control module (1) to the engine control module bracket.
Engine Control Module (1) - Remove
Engine Control Module Bracket Bolt (1) - Remove [3x]
Use a suitable tool to release the locking tab and remove the transmission control module (1) by sliding it out from the engine control module bracket (2).
Engine Control Module Bracket (2) - Remove
Air Cleaner Outlet Duct Clamp (1) - Loosen
Air Cleaner Outlet Duct (2) - Reposition
Air Cleaner Outlet Duct Clamp (3) - Loosen
Auxiliary Air Cleaner Outlet Duct (4) - Reposition
Disconnect the 2 mass airflow sensor electrical connectors.
Remove all retainers from the air cleaner assembly and reposition wiring harnesses as necessary.
Air Cleaner Bolt (1) - Remove
Air Cleaner Assembly (2) - Remove
Oil Filler Cap - Remove
Intake Manifold Cover Bolt (1) - Remove
Intake Manifold Cover (2) - Remove
Install the oil filler cap after removal of the intake manifold cover to prevent debris from falling into the engine.
Evaporative Emission Canister Purge Tube (1) - Disconnect [2x] - Plastic Collar Quick Connect Fitting Service
Evaporative Emission Canister Purge Tube (1) - Remove
Disconnect the turbocharger wastegate regulator solenoid valve electrical connector.
Turbocharger Wastegate Actuator Vacuum Tank Bolt (3) - Remove [2x]
Disconnect the turbocharger wastegate regulator solenoid valve electrical connector.
Turbocharger Wastegate Actuator Vacuum Tank Bolt (3) - Remove [2x]
Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (3) @ Auxiliary Air Cleaner Outlet Duct - Disconnect - Plastic Collar Quick Connect Fitting Service
Charge Air Bypass Valve Vacuum Tank Tube (3) - Disconnect - Plastic Collar Quick Connect Fitting Service
Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Vacuum Pump - Disconnect - Plastic Collar Quick Connect Fitting Service
Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve - Disconnect - Plastic Collar Quick Connect Fitting Service
Electrical Connector (1) @ Charge Air Bypass Valve (2) - Disconnect
Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve - Disconnect - Plastic Collar Quick Connect Fitting Service
Electrical Connector (1) @ Charge Air Bypass Valve (2) - Disconnect
Turbocharger Wastegate Actuator Vacuum Tank Bolt (1) - Remove [2x]
Turbocharger Wastegate Actuator Vacuum Tank (2) - Remove
Charge Air Cooler Coolant Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
Charge Air Cooler Coolant Hose (2) - Remove
Charge Air Cooler Coolant Hose Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
Charge Air Cooler Coolant Hose (4) - Remove
Charge Air Cooler Coolant Manifold Bolt (1) - Remove [4x]
Supercharger Water Manifold (1) - Remove
Supercharger Water Manifold Gasket (2) - Remove and DISCARD [2x]
Charge Air Cooler Coolant Pipe Seal (3) - Remove and DISCARD [4x]
Charge Air Bypass Valve Hose Clamp (1) - Loosen
Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
Charge Air Bypass Valve (3) - Remove
Charge Air Cooler Inlet Air Tube Bolt (1) - Remove [2x]
Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
Charge Air Cooler Inlet Pipe (3) - Remove
Charge Air Cooler Inlet Air Tube Seal (4) - Remove and DISCARD
Charge Air Bypass Valve Hose Clamp (1) - Loosen
Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
Charge Air Bypass Valve (3) - Remove
Charge Air Cooler Inlet Air Tube Bolt (1) - Remove [2x]
Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
Charge Air Cooler Inlet Pipe (3) - Remove
Charge Air Cooler Inlet Air Tube Seal (4) - Remove and DISCARD
NOTE:
Some components not shown for graphic clarity.

Disconnect the electrical connector.
Charge Air Cooler Bolt (1) - Remove [2x]
Charge Air Cooler Cover Bolt (2) - Remove [12x]
NOTE:
Some components not shown for graphic clarity.

Charge Air Cooler Cover (1) - Remove
Intake Manifold Gasket (2) - Remove and DISCARD
Charge Air Cooler Cover Seal (3) - Remove and DISCARD [2x]
NOTE:
Some components not shown for graphic clarity.

Positive Crankcase Ventilation Tube Connector (1) - Disconnect [2x] - Plastic Collar Quick Connect Fitting Service
Positive Crankcase Ventilation Foul Air Tube (2) - Remove
Engine Rear Noise Shield Bolt (1) - Remove
Engine Rear Noise Shield Bolt (1) - Remove [2x]
Retainer (2) - Unclip [3x]
Wiring Harness (3) - Reposition
Fuel Pipe Shield (1) - Remove
Disconnect all electrical connectors.
Lower Intake Manifold Bolt (1) - Remove [6x]
Intake Manifold (1) - Remove
Lower Intake Manifold Gasket (2) - Remove and DISCARD [6x]
CAUTION:
The Positive Crankcase Ventilation (PCV) line is tamper resistant and must always be replaced once it is removed. The fittings connected to the PCV line must also be replaced if they are damaged when the PCV line is removed. To reduce the risk of damage to the fittings, use a suitable cutting tool and carefully cut the connections away.

Using a suitable cutting tool, carefully cut the 2 positive crankcase ventilation tube connectors (1).
Positive Crankcase Ventilation Fresh Air Tube (2) - Remove and DISCARD
Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (1) - Disconnect and reposition - Plastic Collar Quick Connect Fitting Service
Air Cleaner Outlet Duct Clamp (2) - Loosen
Charge Air Bypass Valve Hose Clamp (1) - Loosen
Charge Air Bypass Valve Hose (2) - Reposition
Retainer Spring (3) - Disengage
Auxiliary Air Cleaner Outlet Duct (1) - Remove
Air Cleaner Outlet Duct Bracket Bolt (1) - Remove [2x]
Retainer (2) - Remove [2x]
Oil Level Indicator Tube (3) - Reposition
Air Cleaner Outlet Resonator Bracket (1) - Remove
NOTE:
Replace only the components necessary to complete the repair.

Disconnect the ignition coil electrical connector.
Ignition Coil Bolt (1) - Remove
Ignition Coil (2) - Remove
NOTE:
Some components not shown for graphic clarity.

Electrical Connector (1) - Disconnect
Engine Wiring Harness Retainer (2) - Remove [10x]
Engine Wiring Harness (3) - Reposition
NOTE:
Some components not shown for graphic clarity.

Camshaft Housing Cover Bolt (1) - Remove [15x]
NOTE:
Some components not shown for graphic clarity.

Camshaft Cover (1) - Remove
Camshaft Cover Seal (2) - Remove and DISCARD
Rotate the oil filler tube (1) counterclockwise and remove from the camshaft cover.
Inspect the oil filter tube seal (2) on the oil filler tube (1) and replace as necessary.
EN-46101 Spark Plug Tube Seal Guides (1) - Install [3x]
Clean the mating surface of the cylinder head and the camshaft cover.
CAUTION:
The Positive Crankcase Ventilation (PCV) line is tamper resistant and must always be replaced once it is removed. The fittings connected to the PCV line must also be replaced if they are damaged when the PCV line is removed. To reduce the risk of damage to the fittings, use a suitable cutting tool and carefully cut the connections away.

Using a suitable cutting tool, carefully cut the 2 positive crankcase ventilation tube connectors (1).
Positive Crankcase Ventilation Foul Air Tube (2) - Remove and DISCARD
Charge Air Bypass Valve Hose Clamp (1) - Loosen
Charge Air Bypass Valve Hose (2) - Reposition
Air Cleaner Outlet Duct Clamp (3) - Loosen
Retainer Spring (4) - Disengage
Air Cleaner Outlet Duct (1) - Remove
Radiator Surge Tank Inlet Hose Clip (3) @ Radiator Surge Tank Inlet Pipe Bracket - Unclip
Radiator Surge Tank Inlet Hose (4) - Reposition
Disconnect the ignition coil electrical connector.
Ignition Coil Bolt (1) - Remove
Ignition Coil (2) - Remove
NOTE:
Some components not shown for graphic clarity.

Engine Wiring Harness Retainer (1) - Remove [5x]
Engine Wiring Harness (3) - Reposition
NOTE:
Some components not shown for graphic clarity.

Camshaft Housing Cover Bolt (1) - Remove [13x]
NOTE:
Some components not shown for graphic clarity.

Camshaft Cover (1) - Remove
Camshaft Cover Seal (2) - Remove and DISCARD
EN-46101 Spark Plug Tube Seal Guides (1) - Install [3x]
Clean the mating surface of the cylinder head and the camshaft cover.
NOTE:
- Observe the location and routing of the accessory drive primary belt to ensure proper installation.
- Some components not shown for graphic clarity.
Use a suitable tool to rotate the drive belt tensioner (1) counterclockwise to relieve tension from the accessory drive primary belt (2).
Remove the accessory drive primary belt (2) from the pulleys and tensioner (1).
Slowly release tension on the drive belt tensioner (1).
Clean and inspect the drive belt surfaces of all the pulleys.
Water Pump Pulley Bolt (1) - Remove [4x]
Water Pump Pulley (2) - Remove
Radiator Outlet Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
Radiator Outlet Hose Clamp (2) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
Radiator Outlet Hose (3) @ Engine Oil Cooler Adapter - Remove
Radiator Outlet Hose (4) @ Radiator Outlet Pipe - Remove
Radiator Outlet Hose Clamp (2) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
Radiator Outlet Hose (1) @ Engine Radiator - Remove
Radiator Outlet Hose Clip (1) @ Radiator Outlet Hose Bracket - Remove
Radiator Outlet Hose Clip (2) @ Engine Cooler Fan - Remove
NOTE:
Left side shown, right side similar.

Front Wheelhouse Liner- Right Side (3) - Remove - Front Wheelhouse Liner Replacement , or Front Wheelhouse Liner Replacement (Blackwing)
Radiator Outlet Hose Clip (1) @ Charge Air Cooler Bracket - Remove
Using an appropriate tool, disengage the radiator outlet hose retainer (3).
Radiator Outlet Hose (2) @ Charge Air Cooler- Right Side - Remove
Radiator Outlet Hose (1) - Remove
Raise and support the vehicle. Lifting and Jacking the Vehicle
NOTE:
Left side shown, right side similar.

Front Wheelhouse Liner Bolt- Left Side and Right Side (1) - Remove [4x]
Front Compartment Air Deflector Retainer- Left Side and Right Side (2) - Remove [2x]
Front Bumper Fascia Lower Stiffener Bolt- Left Side and Right Side (3) - Remove [6x]
NOTE:
Left side shown, right side similar.

Front Compartment Air Deflector- Left Side and Right Side (1) - Remove [2x]
Front Bumper Fascia Air Deflector Bolt (1) - Remove [4x]
Front Bumper Fascia Air Deflector Retainer (2) - Remove
Support the front cradle shear plate using a suitable jack.
Front Cradle Shear Plate Bolt (1) - Remove [4x]
Front Cradle Shear Plate Nut (2) - Remove [2x]
Front Crossmember Brace Bolt (3) - Remove [8x]
Front Wheelhouse Liner Bolt (1) - Remove [2x]
Position the left and right side wheelhouse liners (1) away from the front cradle sheer plate (2).
Remove the front cradle sheer plate (2) from between the front bumper fascia center air deflector and the driveline and front suspension cradle and lower it from the vehicle.
Air Conditioning Compressor Bolt (1) - Remove
Air Conditioning Compressor Rear Bracket (2) - Remove
Electrical Connector (4) - Disconnect [2x]
Wiring Harness Retainer (3) - Remove [2x]
Air Conditioning Compressor Hose Bolt (4) - Remove
Air Conditioning Evaporative Connector Hose/Tube and Compressor Hose (3) - Remove
Air Conditioning Compressor Hose Seal - Large (2) - Remove and DISCARD
Air Conditioning Compressor Hose Seal - Small (1) - Remove and DISCARD
Air Conditioning Compressor Bolt (1) - Remove [2x]
Air Conditioning Compressor (1) - Remove
NOTE:
Some components not shown for graphic clarity.

Drive Belt Tensioner Bolt (1) - Remove
Drive Belt Tensioner (2) - Remove
Air Conditioning Compressor Front Bracket Bolt (1) - Remove [2x]
Air Conditioning Compressor Front Bracket Bolt (2) - Remove [2x]
Air Conditioning Compressor Front Bracket (3) - Remove
Assemble the EN-52287 Balancer Holder Kit (1).
EN-956-1 Extension Handle (1) @ EN-52287 Balancer Holder Kit (2) - Install
NOTE:
Some components not shown for graphic clarity.

Install the EN-52287 Balancer Holding Kit (1) and the EN-956 - 1 Extension Bar (2) to the crankshaft balancer (3).
NOTE:
Some components not shown for graphic clarity.

Crankshaft Balancer Bolt (1) - Remove and DISCARD
Remove the EN-52287 Balancer Holding Kit (1) and the EN-956 - 1 Extension Bar (2).
NOTE:
Some components not shown for graphic clarity.

Install the J 24420 - C Harmonic Balancer Puller (1) and the J 38416 - 2 Crankshaft Button (2).
Use tool adjustment to release the crankshaft balancer (3).
Once the crankshaft balancer (3) has released, remove the J 24420 - C Harmonic Balancer Puller (1) and the J 38416 - 2 Crankshaft Button (2).
NOTE:
Some components not shown for graphic clarity.

Crankshaft Balancer (1) - Remove
Charge Air Cooler Front Bracket Bolt (1) - Remove [2x]
Auxiliary Water Pump (2) - Remove
Electrical Connector (4) - Disconnect
Protective Cap (1) - Remove
Engine Wiring Harness Generator Lead Nut (2) - Remove
Starter Solenoid Cable (3) - Remove
Generator Bolt (1) - Remove [3X]
Generator (2) - Remove
Generator Bracket Bolt (1) - Remove [2X]
Generator Bracket Bolt (2) - Remove
Generator Bracket Bolt (3) - Remove
Generator and Drive Belt Tensioner Bracket (1) - Remove
Disconnect the camshaft position actuator solenoid valve (2) electrical connector.
Camshaft Position Actuator Solenoid Valve Bolt (1) - Remove
Camshaft Position Actuator Solenoid Valve (2) - Remove
Disconnect the camshaft position actuator solenoid valve (2) electrical connector.
Camshaft Position Actuator Solenoid Valve Bolt (1) - Remove
Camshaft Position Actuator Solenoid Valve (2) - Remove
Disconnect the camshaft position actuator solenoid valve (2) electrical connector.
Camshaft Position Actuator Solenoid Valve Bolt (1) - Remove
Camshaft Position Actuator Solenoid Valve (2) - Remove
Disconnect the camshaft position actuator solenoid valve (2) electrical connector.
Camshaft Position Actuator Solenoid Valve Bolt (1) - Remove
Camshaft Position Actuator Solenoid Valve (2) - Remove
Disconnect the camshaft position sensors (1) electrical connectors.
Engine Wiring Harness Ground Bolt (2) - Remove
Wiring Harness Retainer (3) - Remove [2x]
Wiring Harness (4) - Reposition
NOTE:
Some components not shown for graphic clarity.

Engine Front Cover Bolt (1) - Remove [17x]
Engine Front Cover Bolt (2) - Remove [5x]
Engine Front Cover Hole Plug Bolt (3) - Remove [2x]
Engine Front Cover Bolt (4) - Remove [2x]
Engine Front Cover Bolt (5) - Remove
CAUTION:
Do not use the jackscrew hole without first removing all engine front cover bolts. Failure to remove all engine front cover bolts before using the jackscrew hole could result in damage to components.

CAUTION:
Do not pry between the engine front cover and the camshaft position sensors or the camshaft position actuators in order to separate the RTV. Use the pry points and a bolt in the jackscrew hole in order to remove the engine front cover. Damage to the camshaft position sensors or the camshaft position actuators may occur if the camshaft position sensors or the camshaft position actuators are used to pry against in order to remove the engine front cover.

Loosely install a 10 x 1.5 mm bolt in the jackscrew hole (1).

NOTE:

Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant

Using the pry points (2) located at the edge of the front cover and the jackscrew, separate the room temperature vulcanizing (RTV) sealant.
Engine Front Cover (1) - Remove
Camshaft Position Actuator Solenoid Valve Seal (1) - Remove and DISCARD [4x]
Using the EN-45000 Seal Remover (2) remove and DISCARD the crankshaft front oil seal (3).
Water Pump Seal (1) - Remove and DISCARD
NOTE:
Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant

Remove any RTV sealant (1) from the engine front cover and mating surface (2) using EN-28410 Gasket Remover (3).
Clean out debris from the bolt holes (4).