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

Lower Engine View 1


Object Number: 328520  Size: LF
(1)Piston Assembly
(2)Oil Level Indicator Tube Bolt
(3)Oil Level Indicator
(4)Oil Level Indicator Tube
(5)Engine Oil Pressure Sensor Fitting
(6)Balance Shaft Bearing (Rear)
(7)Engine Block Oil Gallery Plug
(8)Expansion Cup Plug (Balance Shaft Rear Bearing Hole)
(9)Engine Block Rear Oil Gallery Plug
(10)Expansion Cup Plug (Camshaft Rear Bearing Hole)
(11)Engine Block
(12)Dowel Straight Pin (Transmission Locator)
(13)Oil Filter Adapter Gasket
(14)Oil Filter Adapter Seal (O-ring)
(15)Oil Filter Adapter (Typical)
(16)Oil Filter Adapter Bolt
(17)Oil Filter
(18)Oil Filter Fitting
(19)Oil Filter Adapter Bolt
(20)Oil Filter Bypass Valve
(21)Engine Coolant Drain Hole Plug
(22)Water Pump Gasket
(23)Water Pump
(24)Water Pump Bolt
(25)Camshaft Bearings
(26)Engine Camshaft
(27)Camshaft Retainer
(28)Camshaft Retainer Bolt
(29)Balance Shaft Drive Gear
(30)Camshaft Sprocket
(31)Camshaft Timing Chain
(32)Camshaft Sprocket Bolt
(33)Balance Shaft Gear Bolt
(34)Balance Shaft Driven Gear
(35)Balance Shaft Retainer Bolt
(36)Balance Shaft Retainer
(37)Balance Shaft
Figure 2:

Lower Engine View 2


Object Number: 31449  Size: LF
(1)Crankshaft Rear Oil Seal Housing Bolt
(2)Flywheel Locator Pin
(3)Crankshaft Rear Oil Seal Housing Nut
(4)Crankshaft Rear Oil Seal Housing
(5)Crankshaft Rear Oil Seal Housing Retainer Stud
(6)Crankshaft Rear Oil Seal Housing Gasket
(7)Crankshaft
(8)Oil Pump Drive Shaft
(9)Oil Pump Locator Pin
(10)Oil Pump Drive Shaft Retainer
(11)Oil Pump
(12)Oil Pump Bolt
(13)Oil Pan
(14)Oil Pan Bolt
(15)Oil Pan Gasket
(16)Crankshaft Bearing Cap Bolt
(17)Crankshaft Bearing Cap
(18)Crankshaft Bearings (Lower)
(19)Crankshaft Sprocket
(20)Crankshaft Position Sensor Reluctor Ring
(21)Engine Front Cover
(22)Crankshaft Front Oil Seal
(23)Crankshaft Balancer
(24)Crankshaft Balancer Bolt
(25)Crankshaft Balancer Key
(26)Crankshaft Bearings (Upper)
Figure 3:

Upper Engine View 1


Object Number: 45255  Size: LF
(1)Valve Rocker Arm Cover
(2)Valve Rocker Arm Cover Gasket
(3)Valve Rocker Arm Nut
(4)Valve Rocker Arm Ball
(5)Valve Rocker Arm
(6)Exhaust Manifold Gasket
(7)Exhaust Manifold
(8)Exhaust Manifold Bolt
(9)Spark Plug Heat Shield
(10)Exhaust Manifold Gasket
(11)Valve Lifter Pushrod Guide Bolt
(12)Valve Pushrod
(13)Valve Lifter
(14)Valve Lifter
(15)Valve Lifter Pushrod Guide
(16)Cylinder Head Gasket
(17)Front Engine Lift Bracket
(18)Cylinder Head Bolt
(19)Cylinder Head
Figure 4:

Upper Engine View 2


Object Number: 45253  Size: LF
(1)Distributor
(2)Intake Manifold Bolt (Lower)
(3)Intake Manifold Gasket (Lower)
(4)Intake Manifold
(5)EGR Valve Gasket
(6)EGR Valve
(7)EGR Valve Bolt
(8)Water Outlet Stud
(9)Water Outlet
(10)Engine Coolant Thermostat
(11)Throttle Cable Bracket
(12)Ignition Coil
(13)EVAP Purge Solenoid Valve Bracket
(14)Ignition Coil Stud
Figure 5:

Upper and Lower Intake Manifold View


Object Number: 334238  Size: LF
(1)Fuel Pipe Retainer Bracket Nut
(2)Fuel Pipe Retainer
(3)Fuel Pipe
(4)Fuel Pipe Bolt
(5)Fuel Seal Retainer
(6)Upper Fuel Seal (Yellow O-ring)
(7)Spacer Ring (Metal Flat Washer)
(8)Lower Fuel Seal (Black O-ring)
(9)Upper Manifold Attaching Stud
(10)Upper Intake Manifold
(11)Upper Intake to Lower Intake Manifold Gasket
(12)Fuel Meter Body Seal (O-ring)
(13)Fuel Meter Body
(14)Intake Manifold
(15)Throttle Body to Upper Intake Manifold Gasket
(16)Throttle Body
(17)Throttle Body Attaching Stud