Installation Procedure
Timing Chain Tensioner (1) - Install
- Timing Chain Tensioner Bolt (2) - Install [2x] - Timing Chain Tensioner Replacement
Timing Chain (1) - Install
- 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 hands from underneath the EN-52461 Cam Phaser Torque Reaction Tool (3) and install the EN-52461-1 Holder (3) into the intake camshaft sprocket to hold it securely before installing the camshaft sprocket bolt.
- Line up intake camshaft sprocket (1) with alignment marks, as you install them on chain and the housing which should of been done on removal.
Hold the exhaust camshaft sprocket (1) with hands from underneath the EN-52461 Cam Phaser Torque Reaction Tool (3) and install the EN-52461-1 Holder (3) into the exhaust camshaft sprocket to hold it securely before installing the camshaft sprocket bolt.
- Line up exhaust camshaft sprocket (1) with alignment marks, as you install them on chain and the housing which should of been done on removal.
Lubricate the camshaft sprocket bolts (1) with clean engine oil where indicated. Adhesives, Fluids, Lubricants, and Sealers
Camshaft Sprocket Bolt (1) - Install NEW and hand tighten
Check that the EN-52461-1 Holder (1) sits correctly in the hole of the camshaft sprocket.
- Rotate the EN-52461-1 Holder counter-clockwise (1).
- While holding the EN-52461-1 Holder (1) in the counter-clockwise position, tighten the bolt (2) 6 N.m (53 lb in) just enough to hold the EN-52461-1 Holder in place.
- CAUTION:
Refer to Torque-to-Yield Fastener Caution .
Intake Camshaft Sprocket Bolt (1) - Tighten - Camshaft Sprocket Bolt Replacement
Check that the EN-52461-1 Holder (4) sits correctly in the hole of the exhaust camshaft sprocket.
- Rotate the EN-52461-1 Holder counter-clockwise.
- While holding the EN-52461-1 Holder in the counter-clockwise position, tighten the bolt (3) 6 N.m (53 lb in) just enough to hold the EN-52461-1 Holder in place.
Exhaust Camshaft Sprocket Bolt (1) - Tighten - Camshaft Sprocket Bolt Replacement
EN-955-10-A Locking Pin - Remove
Bolt (1, 2) - Loosen
- Slide the 2 EN-52461-1 Holder (3) out of the camshaft sprockets.
Loosen the 2 bolts (1, 4) of EN-52461-100 Adapter Cam Phaser Torque Reaction Tool (5).
- Remove the EN-52461 Cam Phaser Torque Reaction Tool (5) along with the 2 EN-52461-100 Adapter Cam Phaser Torque Reaction Tool (2, 3) from the engine.
Remove the EN-52462-A Camshaft Tool (1) by rotating the levers in direction of arrows.
Loosen and disengage the bolt (2) from EN-52462-A Camshaft Alignment Tool (1).
- EN-52462-A Camshaft Alignment Tool (1) - Remove
Clean and apply sealant to the camshaft cover opening plugs (1). Adhesives, Fluids, Lubricants, and Sealers
- Camshaft Cover Opening Plug (1) - Install and tighten [2x] 20 N.m (15 lb ft)
Engine Wiring Harness (1) @ Camshaft Carrier - Install
- NOTE:
- The timing chain upper cover sealing surface must be free of contamination prior to applying the sealer.
- Install and align the timing chain upper cover to engine block within 10 minutes of applying the sealer.
- The timing chain upper cover must be fastened to final torque specification within 15 minutes of applying the sealer.
- Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
Apply a 5 mm (0.2 in) bead of RTV (2) in the middle of both sides between the camshaft housing and the cylinder head T joint. Adhesives, Fluids, Lubricants, and Sealers
- Check that the 2 Pins (1) are in the camshaft housing or in the timing chain upper cover.
Timing Chain Upper Cover Seal (1) - Install NEW
- Timing Chain Upper Cover (2) - Install
Timing Belt Upper Cover Bolt - M6 (3) - Install
- Timing Belt Upper Cover Bolt - M5 (2) - Install [11x]
- Tighten the timing belt upper cover bolts in sequence. Timing Chain Upper Cover Replacement
Camshaft Position Actuator Magnet Gasket (3) - Install NEW
- Camshaft Position Actuator Valve Solenoid (2) - Install
- Camshaft Position Actuator Valve Solenoid Bolt (1) - Install [2x] - Camshaft Position Actuator Valve Solenoid Replacement - Intake
Camshaft Position Actuator Magnet Gasket (3) - Install NEW
- Camshaft Position Actuator Valve Solenoid (2) - Install
- Camshaft Position Actuator Valve Solenoid Bolt (1) - Install [2x] - Camshaft Position Actuator Valve Solenoid Replacement - Exhaust
Engine Wiring Harness (3) - Reposition
- Retainer (1) @ Timing Chain Upper Cover (2) - Engage [6x]
- Connect the 2 electrical connectors to the camshaft position actuator valve solenoids.
- NOTE:
- The engine front cover sealing surface must be free of contamination prior to applying the sealer.
- Install and align the engine front cover to engine block within 10 minutes of applying the sealer.
- The engine front lower cover must be fastened to final torque specification within 15 minutes of applying the sealer.
- Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
Apply approximately a 4 mm (0.16 in) thick bead of sealant (1) to the engine front cover. Adhesives, Fluids, Lubricants, and Sealers
- Crankshaft Balancer Bolt - Remove and DISCARD
Install EN-52440 Crankshaft Oil Seal Ring Guide Front (2) to the crankshaft.
- Install the engine front cover (1) backwards using the 2 tabs to size the seal.
Remove the engine front cover (1) after seal is sized.
- EN-52483 Guide Pins (2) - Install
- Engine Front Cover (1) - Install
- Remove the EN-52440 Crankshaft Oil Seal Ring Guide Front (3).
Remove the EN-52483 Guide Pins (2).
- Engine Front Cover Bolt (1) - Install and hand tighten [9x]
-
Courtesy of GENERAL MOTORS COMPANY
NOTE:Refer to the procedure link for torque specification.
Engine Front Cover Bolt (1) - Tighten in sequence [9x] - Engine Front Cover Replacement
- Raise and support the vehicle. Lifting and Jacking the Vehicle
- 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 flex plate when torque is applied to the flexplate or crankshaft balancer bolt.
Retract the timing pin (3) using the handle (1) of the EN-52476 Flywheel Lock and Alignment Tool (2).
- Ensure to engage the slide (4) of the EN-52476 Flywheel Lock and Alignment Tool (2) into the automatic transmission flexplate.
- Lower the vehicle.
Crankshaft Balancer (2) - Install
- Crankshaft Balancer Bolt (1) - Install NEW - Crankshaft Balancer Replacement
- EN-52476 Flywheel Lock and Alignment Tool - Remove
Accessory Drive Primary Belt (1) - Install
Use a suitable tool to rotate the drive belt tensioner (1) counterclockwise and hold.
- Slowly release tension on the drive belt tensioner.
- Raise and support the vehicle. Lifting and Jacking the Vehicle
- 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 flex plate when torque is applied to the flexplate or crankshaft balancer bolt.
EN-52476 Flywheel Lock and Alignment Tool (2) - Remove
Starter (3) - Install
- Starter Bolt (2) - Install [2x] - Starter Replacement (LSY)
Starter Stud (1) - Install - Starter Replacement (LSY)
Auxiliary Generator Battery Jumper Cable (2) - Install
- Battery Positive Cable Nut (1) @ Starter Solenoid - Install - Starter Replacement (LSY)
Electrical Connector (4) - Connect
Auxiliary Generator Battery Jumper Cable (1) - Install
- Battery Negative Cable Nut (2) @ Starter Stud - Install - Starter Replacement (LSY)
- Engine Wiring Harness Retainer (2) - Engage [2x]
- Lower the vehicle.
Oil Level Indicator Tube O-Ring (2) - Install NEW
- Oil Level Indicator Tube (1) - Install
- NOTE:
Refer to the procedure link for torque specification.
Oil Level Indicator Tube Bracket Bolt (2) - Install - Oil Level Indicator Tube Replacement
- Electrical Connector (1) @ Oil Level Indicator (3) - Install
Oil Level Indicator (1) - Install
Evaporative Emission Canister Purge Tube (2) - Install
- Connect the quick disconnects (1) and install the retainer (3). Plastic Collar Quick Connect Fitting Service
Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Install
- NOTE:
Ensure the engine sight shield retainers fully engage the intake manifold cover studs.
Push down on the front of the intake manifold cover (1).
- Fill the engine oil to the proper level with NEW engine oil. Engine Oil and Oil Filter Replacement
- Install the oil fill cap.
- Connect the battery. Battery Negative Cable Disconnection and Connection
- Perform the engine oil life reset. GM Oil Life System Resetting (Without Scan Tool) , or GM Oil Life System Resetting (With Scan Tool)
- Check for leaks.
Refer to the procedure link for torque specification.
Refer to the procedure link for torque specification.
Refer to the procedure link for torque specification.
Refer to the procedure link for torque specification.
Refer to the procedure link for torque specification.
Refer to the procedure link for torque specification.
Refer to the procedure link for torque specification.