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

Cylinder Head and Components


Object Number: 898885  Size: LF
(1)Engine Oil Fill Cap
(2)Ignition Module and Coil Housing Assembly Bolt
(3)Ignition Module and Coil Housing Assembly
(4)Camshaft Cover
(5)Camshaft Cover Gasket
(6)Camshaft Bearing Cap Bolt
(7)Camshaft Bearing Cap
(8)Fuel Rail Assembly Bolt
(9)Fuel Line Assembly
(10)Injector Wiring Harness
(11)Fuel Rail Assembly (with Fuel Injectors)
(12)Cylinder Head
(13)Front Engine Lift Bracket
(14)Engine Lift Bracket Bolt
(15)Cylinder Head Bolt
(16)Oil Flow Check Valve
(17)Exhaust Manifold Stud
(18)Exhaust Valve
(19)Intake Valve
(20)Camshaft Cover Grounding Strap Bolt
(21)Cylinder Head Oil Passage Plug
(22)Cylinder Head Oil Passage Plug
(23)Spark Plug
(24)Valve Stem Seal
(25)Valve Spring
(26)Valve Spring Retainer
(27)Valve Keys
(28)Hydraulic Lash Adjuster
(29)Roller Finger Follower
(30)Rear Engine Lift Bracket Bolt
(31)Rear Engine Lift Bracket
(32)EGR Port Cover Gasket
(33)EGR Port Cover
(34)EGR Port Cover Bolt
(35)Camshaft Bearing Cap
(36)Camshaft Bearing Cap Bolt
(37)Camshaft Bearing Cap
(38)Camshaft Bearing Cap Bolt
(39)Exhaust Camshaft
(40)Intake Camshaft
(41)Camshaft Cover Grounding Strap
(42)Camshaft Cover Grounding Strap Bolt
(43)Camshaft Cover Bolt
Figure 2:

Engine Block and Components


Object Number: 894923  Size: LF
(1)Thermostat Housing
(2)Thermostat Housing to Engine Block Seal
(3)Water Transfer Pipe
(4)Water Transfer Pipe to Water Pump Seal
(5)Water Pump Bolt
(6)Water Pump
(7)Water Pump to Engine Block Seal
(8)Water Pump Bolt
(9)Oil Filter Cap
(10)Oil Filter
(11)Oil Filter to Engine Block Seal
(12)Cylinder Head Alignment Pin
(13)Intake Balance Shaft Rear Bearing
(14)Intake Balance Shaft
(15)Intake Balance Shaft Bearing Carrier
(16)Intake Balance Shaft Drive Sprocket
(17)Intake Balance Shaft Drive Sprocket Bolt
(18)Exhaust Balance Shaft Drive Sprocket Bolt
(19)Exhaust Balance Shaft Drive Sprocket
(20)Exhaust Balance Shaft Bearing Carrier Bolt
(21)Exhaust Balance Shaft
(22)Exhaust Balance Shaft Rear Bearing Engine
(23)Front Cover Alignment Pin
(24)Engine Oil Passage Plug
(25)Engine Oil Passage Plug
(26)Top Compression Piston Ring
(27)Second Compression Piston Ring
(28)Piston Oil Ring Assembly
(29)Piston
(30)Piston Pin
(31)Piston Pin Retainer
(32)Connecting Rod
(33)Connecting Rod Cap Bolt
(34)Connecting Rod Bearing
(35)Crankshaft Thrust Bearing
(36)Crankshaft Bearing
(37)Crankshaft Damper Alignment Key
(38)Crankshaft
(39)Crankshaft Rear Seal
(40)Starter Ring Gear
(41)Flywheel
(42)Flywheel to Crankshaft Bolt
(43)Engine Oil Pan Baffle
(44)Engine Oil Pan
(45)Pan Drain Plug
(46)Engine Oil Pan Nut
(47)Engine Oil Pan Stud
(48)Engine Oil Pan Bolt
(49)Engine Oil Pickup
(50)Lower Crankcase to Engine Block Bolt
(51)Lower Crankcase to Engine Block Bolt
(52)Crankshaft Bearing Bolt
(53)Lower Crankcase to Engine Block Bolt
(54)Lower Crankcase
(55)Lower Crankcase Alignment Pin
(56)Lower Crankcase Alignment Pin
(57)Engine Block
(58)Water Jacket Plug
(59)Engine Block to Transmission Alignment Pin
(60)Cylinder Head to Engine Block Bolt
(61)Water Jacket Drain Plug
(62)Water Pump to Engine Block Bolt
(63)Thermostat Housing to Engine Block Bolt
(64)Thermostat Housing to Engine Block Bolt
(65)Thermostat Gasket
(66)Thermostat
Figure 3:

Timing Chain and Components


Object Number: 898887  Size: MF
(1)Upper Timing Chain Guide Bolt
(2)Upper Timing Chain Guide
(3)Timing Chain
(4)Intake Camshaft Sprocket
(5)Intake Camshaft Sprocket to Camshaft Bolt
(6)Fixed Timing Chain Guide Bolt
(7)Fixed Timing Chain Guide
(8)Fixed Timing Chain Guide Bolt
(9)Oil Pump Cover Bolt
(10)Oil Pump Cover
(11)Oil Pump Inner Gerotor
(12)Oil Pump Outer Gerotor
(13)Engine Front Cover Gasket
(14)Engine Front Cover
(15)Engine Front Cover Access Plate Bolt
(16)Front Crankshaft Seal
(17)Crankshaft Damper
(18)Crankshaft Damper Bolt
(19)Engine Front Cover Bolt
(20)Oil Pressure Relief Valve Plunger
(21)Oil Pressure Relieve Valve Spring
(22)Oil Pressure Relief Valve Plug
(23)Crankshaft Sprocket Alignment Key
(24)Timing Chain Oil Nozzle
(25)Exhaust Camshaft Sprocket to Camshaft Bolt
(26)Timing Chain Drive Sprocket
(27)Adjustable Timing Chain Guide Bolt
(28)Adjustable Timing Chain Guide
(29)Timing Chain Tensioner Seal
(30)Timing Chain Tensioner
(31)Drive Chain Guide Bolt
(32)Balance Shaft Drive Chain Guide
(33)Balance Shaft Drive Sprocket
(34)Adjustable Balance Shaft Drive Chain Guide Bolt
(35)Adjustable Balance Shaft Drive Chain Guide
(36)Balance Shaft Drive Chain Tensioner Assembly
(37)Water Pump
(38)Water Pump Drive Sprocket Bolt
(39)Balance Shaft Drive Chain Guide
(40)Balance Shaft Drive Chain Guide Bolt
(41)Engine Front Cover Access Plate Seal
(42)Engine Front Cover Access Plate
Figure 4:

Accessory and Engine Drive Belt Components


Object Number: 894930  Size: LF
(1)Power Steering Pump
(2)Power Steering Pressure Line
(3)Generator Bolt
(4)Generator Pulley
(5)Accessory Drive Belt
(6)Air Compressor Bolt
(7)Air Conditioning Compressor
(8)Accessory Drive Belt Tensioner Bolt
(9)Accessory Drive Belt Tensioner
(10)Generator Assembly
(11)Starter Assembly
(12)Power Steering Pump Bolt
(13)Starter Assembly to Engine Block Bolt
Figure 5:

Exhaust Manifold and Components


Object Number: 894920  Size: FP
(1)Exhaust Manifold Heat Shield
(2)Manifold Heat Shield Stud
(3)Exhaust Manifold Gasket
(4)Exhaust Manifold
(5)Exhaust Flex Decoupler Stud
(6)Exhaust Manifold Nut
Figure 6:

Lubrication System (Oil Flow)


Object Number: 895101  Size: MF
(1)Hydraulic Lifter
(2)Cam Bearing
(3)Cylinder Head
(4)Timing Chain Tensioner
(5)Cam Drive Chain Oil Nozzle
(6)Crankshaft Bearing
(7)Balance Shaft Chain Tensioner
(8)Oil Pump
(9)Oil Pick Up
(10)Oil Pan
(11)Bedplate
(12)Balance Shaft Bearings
(13)Oil Filter