GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Engine Covers and Component Assemblies (1 of 2)


Object Number: 1961808  Size: LF
(1)Ignition Coil Assembly to Camshaft Cover Assembly Retaining Bolt
(2)Spark Plug
(3)Camshaft Cover Assembly - Right Side
(4)Ignition Coil Assembly
(5)Camshaft Cover Assembly - Left Side
(6)Intake Manifold Assembly
(7)Engine Flywheel to Crankshaft Retaining Bolt
(8)Engine Flywheel
(9)Exhaust Manifold Heat Shield to Exhaust Manifold Retaining Bolt
(10)Exhaust Manifold Heat Shield - Left Side
(11)Exhaust Manifold - Left Side
(12)Exhaust Manifold to Cylinder Head Retaining Bolt
(13)Exhaust Manifold Gasket - Left Side
(14)Engine Assembly
(15)Oil Pan Assembly
(16)Crankshaft Balancer
(17)Crankshaft Balancer to Crankshaft Retaining Bolt
(18)Engine Front Cover Assembly
(19)Exhaust Manifold Heat Shield - Right Side
(20)Exhaust Manifold - Right Side
(21)Exhaust Manifold Gasket - Right Side
Figure 2:

Engine Covers and Component Assemblies (2 of 2)


Object Number: 2043918  Size: MF
(1)Cylinder Head Assembly - Right Side
(2)Engine Cooling Thermostat Gasket
(3)Engine Cooling Thermostat
(4)Engine Cooling Thermostat Housing
(5)Engine Cooling Thermostat Housing Bolt
(6)Cylinder Head Assembly - Left Side
(7)Cylinder Head Gasket - Left Side
(8)Oil Level Indicator O-rings
(9)Oil Level Indicator Tube Bolt
(10)Oil Level Indicator
(11)Oil Level Indicator Tube O-ring
(12)Oil Level Indicator Tube
(13)Knock Sensor - Bank 1
(14)Knock Sensor to Cylinder Block Retaining Bolt - Bank 1
(15)Oil Filter Adapter Assembly
(16)Engine Short Block Assembly
(17)Oil Pump Assembly
(18)Timing Drive Assembly
(19)Water Outlet to Cylinder Block Retaining Bolt
(20)Water Outlet
(21)Water Outlet Seal
(22)Water Outlet O-ring
(23)Knock Sensor - Bank 2
(24)Knock Sensor to Cylinder Block Retaining Bolt - Bank 2
(25)Engine Coolant Heater
(26)Crankshaft Position Sensor
(27)Crankshaft Position Sensor to Cylinder Block Retaining Bolt
(28)Crankshaft Position Sensor O-ring
(29)Cylinder Head Gasket - Right Side
Figure 3:

Camshaft Cover Assembly


Object Number: 1961810  Size: LF
(1)Ignition Coil to Camshaft Cover Retaining Bolt
(2)Spark Plug
(3)Camshaft Cover PCV Fitting Orifice - Right Side
(4)Camshaft Cover - Right Side
(5)Camshaft Cover Spark Plug Port Seal - Right Side
(6)Camshaft Cover Gasket - Right Side
(7)Camshaft Cover Bolt Insulator
(8)Camshaft Cover Bolt
(9)Ignition Coil Bolt Thread Insert
(10)Ignition Coil
(11)Camshaft Cover PCV Fitting - Left Side
(12)Camshaft Cover PCV Fitting - Left Side
(13)Camshaft Cover - Left Side
(14)Oil Fill Cap
(15)Oil Fill O-Ring
(16)Oil Fill Tube
(17)Oil Fill O-Ring
(18)Camshaft Cover Spark Plug Port Seal - Left Side
(19)Camshaft Cover Gasket - Left Side
Figure 4:

Camshaft Timing Components (LY7)


Object Number: 1961811  Size: LF
(1) Timing Chain Tensioner and Guide Bolt - Right Side
(2)Secondary Timing Chain Tensioner - Right Side
(3)Secondary Timing Chain Tensioner Gasket - Right Side
(4)Secondary Timing Chain Shoe - Right Side
(5)Secondary Timing Chain - Right Side
(6)Camshaft Position Actuator to Camshaft Retaining Bolt - Bank 2
(7)Exhaust Camshaft Position Actuator - Bank 2
(8)Camshaft Position Actuator to Camshaft Retaining Bolt - Bank 2
(9)Intake Camshaft Position Actuator - Bank 2
(10)Secondary Timing Chain Guide Bolt - Right Side
(11)Secondary Timing Chain Guide - Right Side
(12)Secondary Timing Chain Shoe Bolt - Right Side
(13)Primary Timing Chain
(14)Camshaft Intermediate Drive Chain Idler Sprocket
(15)Camshaft Intermediate Drive Chain Idler Sprocket Bolt
(16) Primary Timing Chain Upper Guide
(17) Primary Timing Chain Guide Bolt
(18) Primary Timing Chain Tensioner Bolt
(19)Primary Timing Chain Tensioner
(20)Primary Timing Chain Tensioner Gasket
(21)Crankshaft Sprocket
(22) Primary Timing Chain Lower Guide Bolt
(23) Primary Timing Chain Lower Guide
(24) Secondary Timing Chain Guide Bolt - Left Side
(25)Secondary Timing Chain Guide - Left Side
(26)Secondary Timing Chain Shoe Bolt - Left Side
(27)Camshaft Intermediate Drive Shaft Sprocket Bolt - Left Side
(28)Camshaft Intermediate Drive Shaft Sprocket - Left Side
(29)Secondary Timing Chain - Left Side
(30)Camshaft Position Actuator to Camshaft Retaining Bolt - Bank 1
(31)Exhaust Camshaft Position Actuator - Bank 1
(32)Intake Camshaft Position Actuator - Bank 1
(33)Camshaft Position Actuator to Camshaft Retaining Bolt - Bank 1
(34)Secondary Timing Chain Shoe - Left Side
(35)Secondary Timing Chain Tensioner Gasket - Left Side
(36)Secondary Timing Chain Tensioner - Left Side
(37) Timing Chain Tensioner Bolt - Left Side
Figure 5:

Camshaft Timing Components (LE0 & LW2)


Object Number: 1962285  Size: LF
(1) Timing Chain Tensioner and Guide Bolt - Right Side
(2)Secondary Timing Chain Tensioner - Right Side
(3)Secondary Timing Chain Tensioner Gasket - Right Side
(4)Secondary Timing Chain Shoe - Right Side
(5)Secondary Timing Chain - Right Side
(6)Exhaust Camshaft Sprocket to Camshaft Retaining Bolt - Bank 2
(7)Exhaust Camshaft Sprocket - Bank 2
(8)Camshaft Position Actuator to Camshaft Retaining Bolt - Bank 2
(9)Intake Camshaft Position Actuator - Bank 2
(10)Secondary Timing Chain Guide Bolt - Right Side
(11)Secondary Timing Chain Guide - Right Side
(12)Secondary Timing Chain Shoe Bolt - Right Side
(13)Primary Timing Chain
(14)Camshaft Intermediate Drive Chain Idler Sprocket
(15)Camshaft Intermediate Drive Chain Idler Sprocket Bolt
(16) Primary Timing Chain Upper Guide
(17) Primary Timing Chain Guide Bolt
(18) Primary Timing Chain Tensioner Bolt
(19)Primary Timing Chain Tensioner
(20)Primary Timing Chain Tensioner Gasket
(21)Crankshaft Sprocket
(22) Primary Timing Chain Lower Guide Bolt
(23) Primary Timing Chain Lower Guide
(24) Secondary Timing Chain Guide Bolt - Left Side
(25)Secondary Timing Chain Guide - Left Side
(26)Secondary Timing Chain Shoe Bolt - Left Side
(27)Camshaft Intermediate Drive Shaft Sprocket Bolt - Left Side
(28)Camshaft Intermediate Drive Shaft Sprocket - Left Side
(29)Secondary Timing Chain - Left Side
(30)Exhaust Camshaft Sprocket to Camshaft Retaining Bolt - Bank 1
(31)Exhaust Camshaft Sprocket - Bank 1
(32)Intake Camshaft Position Actuator - Bank 1
(33)Camshaft Position Actuator to Camshaft Retaining Bolt - Bank 1
(34)Secondary Timing Chain Shoe - Left Side
(35)Secondary Timing Chain Tensioner Gasket - Left Side
(36)Secondary Timing Chain Tensioner - Left Side
(37) Timing Chain Tensioner Bolt - Left Side
Figure 6:

Intake Manifold


Object Number: 1961812  Size: LF
(1)Evaporative Emission (EVAP) Canister Purge Solenoid Valve Tube
(2)EVAP Canister Purge Solenoid Valve Bolt
(3)EVAP Canister Purge Solenoid Valve
(4)EVAP Canister Purge Solenoid Valve Bracket
(5)Positive Crankcase Ventilation (PCV) Hose O-Ring Outer/Larger
(6)PCV Hose O-Ring Inner/Smaller
(7)PCV Hose
(8)Upper Intake Manifold Bolt - Short
(9)Intake Manifold Runner Control Flap Retaining bolt
(10)Intake Manifold Runner Control Flap
(11)Intake Manifold Runner Control Flap O-Ring
(12)Upper Intake Manifold Assembly
(13)Throttle Body Retaining Bolt
(14)Throttle Body
(15)Throttle Body Gasket
(16)Engine Cover Ball Stud
(17)Upper Intake Manifold Bolt - Long
(18)Fuel Injector Wiring Harness
(19)Fuel Pressure Service Valve Cap
(20)Fuel Pressure Service Valve
(21)Fuel Injector Retaining Clip
(22)Fuel Injector Lower Seal
(23)Fuel Injector
(24)Fuel Injector Upper Seal
(25)Fuel Rail
(26)Fuel Rail Bolt
(27)Upper Intake Manifold Gasket
(28)Lower Intake Manifold to Upper Intake Manifold Guide Pin
(29)Lower Intake Manifold
(30)Lower Intake Manifold Gasket
(31)Lower Intake Manifold Retaining Bolt
Figure 7:

Fuel Rail


Object Number: 1961813  Size: LF
(1)Fuel Pressure Service Valve Cap
(2)Fuel Pressure Service Valve
(3)Fuel Rail
(4)Fuel Injector Retainer
(5)Fuel Injector Lower Seal
(6)Fuel Injector
(7)Fuel Injector Upper Seal
Figure 8:

Cylinder Head Assemblies


Object Number: 1961814  Size: LF
(1)Camshaft Oil Seal Ring
(2)Cylinder Head Camshaft Front Thrust Bearing Cap
(3)Exhaust Camshaft - Right Side
(4)Intake Camshaft - Right Side
(5)Cylinder Head - Right Side
(6)Cylinder Head Gasket - Right Side
(7)Cylinder Head Oil Gallery Check Valve
(8)Cylinder Head Front Bolt
(9)Cylinder Head Bolt
(10)Valve Stem Oil Seal
(11)Valve Collets
(12)Valve Spring Cap
(13)Valve Spring
(14)Cylinder Head Coolant Hole Threaded Plug
(15)Spark Plug Sleeve
(16)Hydraulic Valve Lash Adjuster Assembly
(17)Engine Coolant Temperature Sensor
(18)Exhaust Valve
(19)Cylinder Head Oil Gallery Expansion Plug - 14 mm
(20)Intake Valve
(21)Cylinder Head Oil Gallery Expansion Plug - 14 mm
(22)Cylinder Head - Left Side
(23)Cylinder Head Gasket - Left Side
(24)Valve Rocker Arm Assembly
(25)Cylinder Head Camshaft Front Thrust Bearing Cap
(26)Cylinder Head Camshaft Cap - Intermediate
(27)Cylinder Head Camshaft Cap Bolt
(28)Intake Camshaft - Left Side
(29)Exhaust Camshaft - Left Side
Figure 9:

Engine Front Cover


Object Number: 1961815  Size: LF
(1)Camshaft Position Sensor Bolt
(2)Camshaft Position Sensor
(3)Camshaft Position Sensor O-Ring
(4)Camshaft Position Actuator Solenoid Valve to Engine Front Cover Retaining Bolt
(5)Camshaft Position Actuator Solenoid Valve
(6)Engine Front Cover to Cylinder Block Seal
(7)Engine Front Cover Guide Pin
(8)Engine Front Cover
(9)Engine Front Cover Retaining Bolt
(10)Crankshaft Front Oil Seal
(11)Crankshaft Balancer
(12)Crankshaft Balancer Bolt
(13)Water Pump Gasket
(14)Water Pump Assembly
(15)Water Pump Bolt
(16)Water Pump Pulley Bolt
(17)Water Pump Pulley
(18)Engine Front Cover Retaining Bolt
(19)Camshaft Position Actuator Solenoid Valve Seal
Figure 10:

Oil Pump


Object Number: 1961816  Size: MF
(1)Oil Pump Cover Retaining Bolt
(2)Oil Pump Retaining Bolt
(3)Oil Pump Housing
(4)Oil Pressure Relief Valve
(5)Oil Pressure Relief Valve Spring
(6)Oil Pressure Relief Valve Bore Plug
(7)Oil Pressure Relief Valve Bore Plug Retainer Clip
(8)Oil Pump Driven Gear
(9)Oil Pump Drive Gear
(10)Oil Pump Cover
(11) Primary Camshaft Drive Chain Lower Guide
(12) Primary Camshaft Drive Chain Lower Guide Retaining Bolt
Figure 11:

Engine Block Assembly


Object Number: 1961817  Size: LF
(1)Crankshaft Sprocket Pin
(2)Crankshaft Lower Bearing
(3)Crankshaft Bearing Cap
(4)Crankshaft Bearing Cap Outboard Bolt
(5)Crankshaft Bearing Cap Inboard Bolt
(6)Crankshaft Bearing Thrust Cap
(7)Oil Jet Retaining Bolt
(8)Oil Jet
(9)Crankshaft Upper Thrust Bearing #3
(10)Cylinder Block-to-Oil Pan Alignment Dowels
(11)Crankshaft Bearing Cap Side Bolt - Long
(12)Engine Block Oil Gallery Threaded Plug - 14 mm
(13)Crankshaft Rear Oil Seal Housing Assembly
(14)Crankshaft Rear Oil Seal Housing Assembly Bolt
(15)Cylinder Block-to-Transmission Alignment Dowels
(16)Engine Block Coolant Drain Threaded Plug - 14 mm
(17)Piston and Connecting Rod Assembly
(18)Engine Block Oil Gallery Threaded Plug - 14 mm
(19)Engine Block Core Coolant Expansion Plug - 34.3 mm
(20)Cylinder Head Locating Pin
(21)Engine Block
(22)Engine Block Oil Gallery Expansion Plug - 14 mm
(23)Engine Block Oil Gallery Threaded Plug - 20 mm
(24)Engine Block Oil Gallery Expansion Plug - 10 mm
(25)Crankshaft Bearing Cap Side Bolt - Short
(26)Crankshaft Upper Bearing
(27)Crankshaft
Figure 12:

Piston, Rings, Bearing and Connecting Rod


Object Number: 1961818  Size: LF
(1)Piston Pin Retainer
(2)Piston Pin
(3)Piston Oil Control Rail Ring
(4)Piston Upper Compression Ring
(5)Piston Lower Compression Ring
(6)Piston Oil Control Ring Spacer
(7)Piston Pin Retainer
(8)Piston
(9)Connecting Rod Bushing
(10)Connecting Rod
(11)Connecting Rod Bolt
(12) Connecting Rod Bearing
Figure 13:

Oil Pan Assembly


Object Number: 1961820  Size: LF
(1)Oil Pan Baffle Scraper
(2)Oil Pan Scraper to Oil Pan Retaining Bolt
(3)Oil Pump Suction Pipe Seal
(4)Oil Suction Pipe to Oil Pan Retaining Bolt
(5)Oil Pan Baffle
(6)Oil Pan Bolt - Long
(7)Engine Oil Level Sensor O-Ring
(8)Engine Oil Level Sensor
(9)Engine Oil Level Sensor Bolt
(10)Oil Pan Drain Plug
(11)Oil Pan Drain Plug O-Ring
(12)Oil Pan Bolt - Short
(13)Oil Pan
(14)Oil Pump Suction Pipe
Figure 14:

Oil Filter Adapter


Object Number: 1961819  Size: LF
(1)Oil Filter AdapterCap
(2)Oil Filter Bypass Valve
(3)Drain Valve Assembly
(4)Oil Filter Cap O-ring
(5)Oil Filter Cartridge
(6)Oil Filter Adapter
(7)Oil Filter Adapter Bolt Sleeve
(8)Oil Filter Adapter Bolt - Large
(9)Oil Filter Adapter Bolt - Long
(10)Oil Filter Adapter Bolt
(11)Engine Oil Pressure Sensor
(12)Oil Filter Adapter Gasket
(13)Engine Oil Pressure Sensor O-ring
(14)Drain Valve Assembly Seal
(15)Oil Filter Bypass Valve Body