GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Sierra - 4WD 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L 🢒 Disassembled Views
Figure 1:

Intake Manifold/Upper Engine - RPO LY2/LY6/L92
Object Number: 1658309 Size: LF
(100)Engine Block
(307)Engine Coolant Air Bleed Pipe
(308)Engine Coolant Air Bleed Pipe O-Ring Seal
(308)Engine Coolant Air Bleed Pipe O-Ring Seal
(309)Bolt
(312)Bolt
(313)Engine Coolant Air Bleed Pipe Hole Cover
(500)Intake Manifold
(506)Bolt
(507)Nut
(508)Throttle Body
(509)Throttle Body Seal
(510)Sequential Multi-Port Fuel Injector Assembly with Fuel Rail
(511)Bolt
(512)Bolt
(513)Intake Manifold Seal
(514)Intake Manifold Gasket
(537)O-Ring Seal
(538)Bolt
(555)Engine Valley Cover
(556)Gasket
(557)Fuel Injection Fuel Rail Bracket
(706)Engine Oil Pressure Sensor
(712)Fuel Injection Fuel Rail Stop
(713)Bolt
(714)Manifold Absolute Pressure (MAP) Sensor
(715)MAP Sensor O-Ring Seal
(729)Evaporative (EVAP) Emission Canister Purge Tube
(730)EVAP Emission Canister Purge Solenoid Valve
(735)EVAP Emission Canister Purge Tube
Figure 2:

Intake Manifold/Upper Engine - RPO LH6/LMG/LY5/LC9/L76
Object Number: 1658306 Size: LF
(100)Engine Block
(307)Engine Coolant Air Bleed Pipe
(308)Engine Coolant Air Bleed Pipe O-Ring Seal
(308)Engine Coolant Air Bleed Pipe O-Ring Seal
(309)Bolt
(312)Bolt
(313)Engine Coolant Air Bleed Pipe Hole Cover
(451)Valve Lifter Oil Manifold
(452)Valve Lifter Oil Filter
(454)Valve Lifter Oil Filter Seal
(500)Intake Manifold
(506)Valve Lifter Oil Manifold Bolt
(507)Throttle Body Nut
(508)Throttle Body
(509)Throttle Body Seal
(510)Sequential Multi-Port Fuel Injector Assembly with Fuel Rail
(511)Fuel Injection Fuel Rail Bracket Bolt
(512)Intake Manifold Bolt
(513)Intake Manifold Seal
(514)Intake Manifold Gasket
(538)Throttle Body Bolt
(556)Valve Lifter Oil Manifold Gasket
(557)Fuel Injection Fuel Rail Bracket
(706)Engine Oil Pressure Sensor
(712)Fuel Injection Fuel Rail Stop
(713)Bolt
(714)Manifold Absolute Pressure (MAP) Sensor
(715)MAP Sensor O-Ring Seal
(729)Evaporative (EVAP) Emission Canister Purge Tube
(730)EVAP Emission Canister Purge Solenoid Valve
(731)EVAP Emission Canister Port Cap
(734)EVAP Emission Service Valve
(735)EVAP Emission Canister Purge Tube
Figure 3:

Cylinder Head/Upper Engine - RPO LY2/LY6/L92
Object Number: 1658314 Size: LF
(100)Engine Block
(209)Valve Lifter
(210)Valve Lifter Guide
(211)Valve Lifter Guide Bolt
(212)Valve Push Rod
(213)Valve Rocker Arm
(214)Valve Rocker Arm Pivot Support Bolt
(215)Valve Rocker Arm Pivot Support
(216)Cylinder Head Core Hole Plug
(217)Cylinder Head Gasket
(218)Cylinder Head
(220)Cylinder Head Bolt - M10
(221)Cylinder Head Bolt - M8
(222)Valve Stem Oil Seal
(223)Valve Spring
(224)Valve Spring Cap
(225)Valve Stem Key
(226)Cylinder Head Core Hole Plug
(227)Intake Valve
(228)Exhaust Valve
(229)Cylinder Head Plug
(230)Cylinder Head Locating Pin
(422)Oil Fill Tube O-Ring Seal
(423)Oil Fill Tube
(424)Oil Fill Cap
(450)Oil Fill Cap O-Ring Seal
(504)Valve Rocker Arm Cover Gasket
(504)Valve Rocker Arm Cover Gasket
(505)Valve Rocker Arm Cover
(505)Valve Rocker Arm Cover
(516)Valve Rocker Arm Cover Bolt
(600)Exhaust Manifold
(601)Exhaust Manifold Gasket
(602)Exhaust Manifold Flange Bolt
(603)Exhaust Manifold Heat Shield
(604)Exhaust Manifold Heat Shield Bolt
(700)Positive Crankcase Ventilation (PCV) Hose - Fresh Air
(716)PCV Hose - Dirty Air
(719)Ignition Coil Bracket
(720)Ignition Coil Bracket Stud
(721)Ignition Coil Wire Harness Assembly
(722)Ignition Coil
(723)Ignition Coil Bolt
(724)Spark Plug Wire
(725)Engine Coolant Temperature Sensor
(726)Spark Plug
Figure 4:

Cylinder Head/Upper Engine - RPO LH6/LMG/LY5/LC9/L76
Object Number: 1658311 Size: LF
(100)Engine Block
(209)Valve Lifter - Non-Active Fuel Management
(210)Valve Lifter Guide
(211)Valve Lifter Guide Bolt
(212)Valve Push Rod
(213)Valve Rocker Arm
(214)Valve Rocker Arm Pivot Support Bolt
(215)Valve Rocker Arm Pivot Support
(216)Cylinder Head Core Hole Plug
(217)Cylinder Head Gasket
(218)Cylinder Head
(219)Valve Lifter - Active Fuel Management
(220)Cylinder Head Bolt - M10
(221)Cylinder Head Bolt - M8
(222)Valve Stem Oil Seal
(223)Valve Spring
(224)Valve Spring Cap
(225)Valve Stem Key
(226)Cylinder Head Core Hole Plug
(227)Intake Valve
(228)Exhaust Valve
(229)Cylinder Head Plug
(230)Cylinder Head Locating Pin
(422)Oil Fill Tube O-Ring Seal
(423)Oil Fill Tube
(424)Oil Fill Cap
(450)Oil Fill Cap O-Ring Seal
(504)Valve Rocker Arm Cover Gasket
(504)Valve Rocker Arm Cover Gasket
(505)Valve Rocker Arm Cover
(505)Valve Rocker Arm Cover
(516)Valve Rocker Arm Cover Bolt
(600)Exhaust Manifold
(601)Exhaust Manifold Gasket
(602)Exhaust Manifold Flange Bolt
(603)Exhaust Manifold Heat Shield
(604)Exhaust Manifold Heat Shield Bolt
(700)Positive Crankcase Ventilation (PCV) Hose - Fresh Air
(716)PCV Hose - Dirty Air
(719)Ignition Coil Bracket
(720)Ignition Coil Bracket Bolt
(721)Ignition Coil Wire Harness Assembly
(722)Ignition Coil
(723)Ignition Coil Bolt
(724)Spark Plug Wire
(725)Engine Coolant Temperature Sensor
(726)Spark Plug
Figure 5:

Front of Engine - RPO LY2/LH6/LMG/LY5/LC9
Object Number: 1776617 Size: LF
(100)Engine Block
(138)Crankshaft Balancer
(139)Crankshaft Balancer Bolt
(140)Crankshaft Front Oil Seal
(200)Camshaft
(201)Camshaft Bearing
(202)Camshaft Sprocket Locating Pin
(203)Camshaft Retainer
(204)Camshaft Retainer Bolt
(205)Camshaft Sprocket
(206)Camshaft Sprocket Bolt
(207)Crankshaft Sprocket
(208)Timing Chain
(231)Timing Chain Tensioner Bolt
(232)Timing Chain Tensioner
(300)Water Pump
(301)Water Pump Bolt
(302)Water Pump Inlet Bolt
(303)Water Pump Inlet
(305)Engine Coolant Thermostat
(306)Water Pump Gasket
(404)Oil Pump Suction Pipe Nut
(405)Oil Pump Suction Pipe Bolt
(406)Oil Pump O-Ring Seal
(407)Oil Pump Suction Pipe
(408)Oil Pump Cover Bolt
(409)Oil Pump Cover
(410)Oil Pump Drive Gear
(411)Oil Pump Bolt
(412)Oil Pump Driven Gear
(413)Oil Pump
(414)Oil Pressure Relief Valve
(415)Oil Pressure Relief Valve Spring
(416)Oil Pressure Relief Valve Bore Plug
(417)Oil Level Indicator O-Ring Seal
(418)Oil Level Indicator
(419)Oil Level Indicator Tube Bolt
(420)Oil Level Indicator Tube
(421)O-Ring
(501)Engine Front Cover Bolt
(502)Engine Front Cover
(503)Engine Front Cover Gasket
(703)Camshaft Position (CMP) Sensor
(704)CMP Sensor O-Ring Seal
(705)CMP Sensor Bolt
(737)CMP Sensor Wire Harness Assembly
(738)CMP Sensor Wire Harness Assembly Bolt
Figure 6:

Front of Engine - RPO LY6/L76/L92
Object Number: 1658317 Size: LF
(100)Engine Block
(138)Crankshaft Balancer
(139)Crankshaft Balancer Bolt
(140)Crankshaft Front Oil Seal
(200)Camshaft
(201)Camshaft Bearing
(202)Camshaft Sprocket Locating Pin
(203)Camshaft Retainer
(204)Camshaft Retainer Bolt
(207)Crankshaft Sprocket
(208)Timing Chain
(231)Timing Chain Tensioner Bolt
(232)Timing Chain Tensioner
(234)Camshaft Position (CMP) Actuator Solenoid Valve
(235)CMP Actuator
(300)Water Pump
(301)Water Pump Bolt
(302)Water Pump Inlet Bolt
(303)Water Pump Inlet
(305)Engine Coolant Thermostat
(306)Water Pump Gasket
(404)Oil Pump Suction Pipe Nut
(405)Oil Pump Suction Pipe Bolt
(406)Oil Pump O-Ring Seal
(407)Oil Pump Suction Pipe
(408)Oil Pump Cover Bolt
(409)Oil Pump Cover
(410)Oil Pump Drive Gear
(411)Oil Pump Bolt
(412)Oil Pump Driven Gear
(413)Oil Pump
(414)Oil Pressure Relief Valve
(415)Oil Pressure Relief Valve Spring
(416)Oil Pressure Relief Valve Bore Plug
(417)Oil Level Indicator O-Ring Seal
(418)Oil Level Indicator
(419)Oil Level Indicator Tube Bolt
(420)Oil Level Indicator Tube
(421)O-Ring
(501)Engine Front Cover Bolt
(502)Engine Front Cover
(503)Engine Front Cover Gasket
(703)CMP Sensor
(704)CMP Sensor O-Ring Seal
(705)CMP Sensor Bolt
(737)CMP Sensor Wire Harness Assembly
(738)CMP Sensor Wire Harness Assembly Bolt
(738)CMP Sensor Wire Harness Assembly Bolt
(751)CMP Actuator Hub Cover Bolt
(752)CMP Actuator Magnet
(753)CMP Actuator Magnet Gasket
Figure 7:

Rear of Engine
Object Number: 1401946 Size: LF
(100)Engine Block
(132)Flex Plate - Automatic Transmission
(133)Flywheel Bolt
(141)Crankshaft Rear Oil Seal
(517)Crankshaft Rear Oil Seal Housing Bolt
(518)Crankshaft Rear Oil Seal Housing
(519)Crankshaft Rear Oil Seal Housing Gasket
Figure 8:

Lower Engine Assembly
Object Number: 1658327 Size: LF
(100)Engine Block
(102)Connecting Rod Bolt
(103)Connecting Rod Cap
(104)Connecting Rod Bearing
(105)Connecting Rod
(106)Piston Pin
(107)Piston
(108)Piston Ring Set
(109)Piston Pin Retainer
(120)Crankshaft Thrust Bearing
(120)Crankshaft Thrust Bearing
(121)Crankshaft Bearing
(121)Crankshaft Bearing
(122)Crankshaft Balancer Key
(124)Crankshaft
(126)Crankshaft Bearing Cap
(127)Crankshaft Bearing Cap Bolt - M8
(128)Crankshaft Bearing Cap Stud - M10
(129)Crankshaft Bearing Cap Bolt - M10
(400)Oil Pan
(401)Oil Pan Closeout Cover
(402)Oil Pan Closeout Cover Bolt
(403)Crankshaft Oil Deflector Nut
(404)Oil Pump Suction Pipe Nut
(405)Oil Pump Suction Pipe Bolt
(406)Oil Pump O-Ring Seal
(407)Oil Pump Suction Pipe
(425)Crankshaft Oil Deflector
(426)Oil Pan Gasket
(427)Oil Pan Baffle Bolt
(428)Oil Pan Baffle
(430)Oil Pan Drain Plug
(431)Oil Pan Closeout Cover
(432)Oil Pan Closeout Cover Bolt
(433)Oil Pan Cover Gasket
(434)Oil Pan Cover
(435)Oil Pan Cover Bolt
(437)Oil Filter
(438)Oil Filter Fitting
(439)Oil Pan Bolt
(453)Oil Pan Bolt
(455)Active Fuel Management Oil Pressure Relief Valve
(727)Engine Oil Level Indicator Switch
(728)O-Ring
Figure 9:

Engine Block Plugs/Sensors
Object Number: 1401949 Size: LF
(100)Engine Block
(100)Engine Block
(101)Oil Gallery Plug - Front
(110)O-Ring
(111)Oil Gallery Plug - Rear
(112)Oil Gallery Plug - Side
(113)Washer
(114)Engine Coolant Heater
(115)Washer
(116)Oil Gallery Plug - Side
(117)Washer
(130)Transmission Housing Locating Pin
(145)Washer
(146)Engine Block Coolant Drain Hole Plug
(701)Crankshaft Position (CKP) Sensor
(702)O-Ring
(718)Knock Sensor
(718)Knock Sensor
(739)Bolt
(739)Bolt
(750)CKP Sensor Bolt
Figure 10:

Oil Pump Assembly
Object Number: 1272779 Size: SF
(408)Bolt
(409)Oil Pump Housing Cover
(410)Oil Pump Drive Gear
(412)Oil Pump Driven Gear
(413)Oil Pump
(414)Oil Pump Pressure Relief Valve
(415)Oil Pump Pressure Relief Valve Spring
(416)Oil Pump Housing Plug