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

Component Locator (LY7)


Object Number: 1957157  Size: MF
(1)Fuse Block - Underhood
(2)Battery
(3)Battery Remote Positive Post
(4)Starter Motor
(5)Generator
Figure 2:

Cooling Fans


Object Number: 1957812  Size: LF
(1)Engine Cooling Fan Shroud
(2)Engine Cooling Fan - Left
(3)Engine Cooling Fan - Right
(4)Engine Cooling Fan - Electrical Connector To Vehicle
(5)Engine Cooling Fan - Right Connector
(6)Engine Cooling Fan - Right Motor
(7)Engine Cooling Fan - Left Connector
(8)Engine Cooling Fan - Left Motor
(9)Radiator Assembly
Figure 3:

EBCM/BPMV Assembly and Wheel Speed Sensors


Object Number: 1960720  Size: MF
(1)Electronic Brake Control Module (EBCM)
(2)Brake Pressure Modulator Valve (BPMV)
(3)Electronic Brake Control Module (EBCM) Connector
(4)Wheel Speed Sensor (WSS) - Left Rear (Right Rear Same)
(5)Wheel Speed Sensor (WSS) - Left Rear Connector (Right Rear Same)
(6)Wheel Speed Sensor (WSS) - Left Front (Right Front Same)
(7)Wheel Speed Sensor (WSS) - Left Front Connector (Right Front Same)
Figure 4:

Engine Controls Components - Bank 1


Object Number: 1962321  Size: LF
(1)Ignition Coil 5
(2)Ignition Coil 3
(3)Ignition Coil 1
(4)Throttle Body
(5)Knock Sensor (KS) 1
Figure 5:

Engine Controls Components - Bank 2


Object Number: 1997671  Size: LF
(1)Ignition Coil 2
(2)Ignition Coil 4
(3)Ignition Coil 6
(4)Engine Coolant Temperature (ECT) sensor
(5)Knock Sensor (KS) 2
(6)Engine Oil Level and Temperature Sensor
(7)Engine Oil Pressure (EOP) Sensor
Figure 6:

CMP Sensors and CMP Actuator Solenoids LY7


Object Number: 1962317  Size: LF
(1)Camshaft Position (CMP) Sensor - Bank 1 Exhaust
(2)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Exhaust
(3)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Intake
(4)Camshaft Position (CMP) Sensor - Bank 1 Intake
(5)Camshaft Position (CMP) Sensor - Bank 2 Intake
(6)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Intake
(7)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust
(8)Camshaft Position (CMP) Sensor - Bank 2 Exhaust
Figure 7:

LLT -- Top of Engine


Object Number: 2160886  Size: MF
(1)Intake Manifold
(2)Air Filter Assembly
(3)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(4)Throttle Body
Figure 8:

Top Left of the Engine


Object Number: 1962314  Size: MF
(1)Upper Inlet Manifold
(2)Air Filter Assembly
(3)Air Mass Meter
(4)Throttle Body Assembly
Figure 9:

Right Rear of Engine


Object Number: 1962312  Size: MF
(1)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(2)Intake Manifold Runner Control (IMRC) Solenoid
Figure 10:

Rear of Engine (LLT)


Object Number: 2159859  Size: MF
(1)Evaporative Emission (EVAP) Throttle Body to Purge Valve Line
(2)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)High Pressure Fuel Pump Sound Insulator
(4)High Pressure Fuel Pump Shield
Figure 11:

Front of Engine (LY7)


Object Number: 1962320  Size: MF
(1)Engine Control Module (ECM)
(2)Throttle Body
(3)Generator
Figure 12:

Front of Engine (LLT)


Object Number: 2159858  Size: MF
(1)Engine Control Module (ECM) Connector
(2)Throttle Body
(3)Generator
Figure 13:

Fuel and EVAP Lines


Object Number: 1962313  Size: MF
(1)Fuel Supply Tube to Tank
(2)EVAP Line to Tank
Figure 14:

High Pressure Fuel Pump (LLT)


Object Number: 2159860  Size: MF
(1)High Pressure Fuel Pump
(2)Fuel Feed Pipe
(3)Dirty Air PCV Hose
(4)Ignition Coil 2
(5)Ignition Coil 4
(6)Ignition Coil 6
(7)Heater Inlet and Outlet Hoses
(8)Flex Plate
(9)Thermostat Housing Assembly
Figure 15:

Exhaust System Component Locator -- LLT


Object Number: 2169829  Size: MF
(1)Rear Left Muffler
(2)Secondary Resonator
(3)Primary Resonator
(4)Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 2
(5)Catalytic Converter -- Left Hand Side
(6)Left Exhaust Manifold
(7)Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 1
(8)Right Exhaust Manifold
(9)Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 1
(10)Catalytic Converter -- Right Hand Side
(11)Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 2
(12)Rear Right Muffler