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

Engine Compartment, on the Left Side


Object Number: 321318  Size: LF
(1)Underhood Fuse/Relay Center
(2)Inadvertant Power Relay
(3)S112
(4)Underhood Relay Center
(5)Theft Deterrent Relay
(6)Ignition 1 Relay
(7)RH Underhood Fuse Block
(8)S121
(9)S119
(10)LH Underhood Fuse Block
(11)S154
(12)S122
(13)C101
(14)Underhood Fuse Block
(15)S104 and S105
Figure 2:

Engine Cooling Fan Relays


Object Number: 602333  Size: MH
Figure 3:

CMP, VSS, and HO2S Bank 1 Sensor 1


Object Number: 602339  Size: SH
(1)Camshaft Position (CMP) Sensor
(2)VSS
(3)HO2S Bank 1 Sensor 1
Figure 4:

MAF Sensor


Object Number: 602337  Size: SH
(1)Mass Air Flow (MAF) Sensor
Figure 5:

CKP B, CKP A, Engine Oil Pressure Switch, and Engine Oil Level Switch


Object Number: 602338  Size: SH
(1)CKP Sensor B
(2)CKP Sensor A
(3)Engine Oil Pressure Switch
(4)Engine Oil Level Switch
Figure 6:

Front Ignition Coil Cassette


Object Number: 602330  Size: SH
Figure 7:

Rear Ignition Coil Cassette


Object Number: 602329  Size: SH
Figure 8:

EVAP Purge Solenoid, and EGR Valve


Object Number: 602336  Size: SH
(1)EVAP Purge Solenoid
(2)EGR Valve
Figure 9:

MAP, IAC, ECT, TP Sensors


Object Number: 602335  Size: SH
(1)MAP Sensor
(2)IAC Valve
(3)ECT Sensor
(4)TP Sensor
Figure 10:

HO2S Bank 1 Sensor 2 (Post HO2)


Object Number: 602294  Size: SH
Figure 11:

HO2S Bank 2 Sensor 1 (Front HO2)


Object Number: 602295  Size: SH
Figure 12:

Knock Sensor


Object Number: 602292  Size: SH
Figure 13:
Object Number: 574138  Size: SH
(1)IAC Valve Electrical Connector
(2)TP Sensor Electrical Connector
(3)TP Sensor
(4)IAC Valve
Figure 14:

EVAP Canister, Fuel Tank, and Lines


Object Number: 597281  Size: SH
(1)EVAP Canister
(2)EVAP Emissions RR Hose Assembly
(3)Fuel Tank Fill Pipe
(4)Fuel Tank
Figure 15:

EVAP Canister and Lines


Object Number: 590654  Size: SH
(1)EVAP Canister Hoses
(2)EVAP Canister
(3)Fuel Tank Filler Pipe
(4)Fuel Tank
Figure 16:

Fuel Tank Pressure Sensor


Object Number: 346278  Size: SF
(1)Modular Fuel Sender
(2)Fuel Tank Strap Bolt
(3)Fuel Tank Strap
(4)Fuel Tank
(5)Fuel Tank Pressure Sensor
Figure 17:

Fuel and Purge Lines


Object Number: 596360  Size: SH
(1)EVAP Purge Line
(2)Fuel Feed Line
(3)Fuel Return Line