Powertrain Component Views. Buick Allure 2008

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2008 🢒 Allure 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Powertrain Component Views

Figure 1:

Front of the Engine Components (L26)


(1)	Ignition Control Module (ICM)
(2)	Manifold Absolute Pressure (MAP) Sensor
(3)	Fuel Injector 1
(4)	Fuel Injector 3
(5)	Fuel Injector 5
(6)	Exhaust Gas Recirculation (EGR) Valve
(7)	Throttle Body
(8)	Engine Coolant Temperature (ECT) Sensor
(9)	Starter Solenoid
(10)	Starter Motor
(11)	Engine Oil Level (EOL) Switch
(12)	Knock Sensor (KS) 1

Figure 2:

Left Side of the Engine Components (L26)


(1)	Exhaust Gas Recirculation (EGR) Valve
(2)	Manifold Absolute Pressure (MAP) Sensor
(3)	Throttle Body
(4)	Ignition Control Module (ICM)
(5)	Crankshaft Position (CKP) Sensor
(6)	Engine Oil Pressure (EOP) Switch
(7)	Camshaft Position (CMP) Sensor
(8)	Heated Oxygen Sensor (HO2S) 1

Figure 3:

Bottom Left of Engine Components (L26)


(1)	Valve Cover
(2)	Secondary Air Injection (AIR) Pump (NU6)
(3)	Starter Motor

Figure 4:

Rear of the Engine Components (L26)


(1)	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(2)	Throttle Body
(3)	Exhaust Gas Recirculation (EGR) Valve
(4)	Fuel Injector 6
(5)	Fuel Injector 4
(6)	Fuel Injector 2
(7)	Manifold Absolute Pressure (MAP) Sensor
(8)	Camshaft Position (CMP) Sensor
(9)	Engine Oil Pressure (EOP) Switch
(10)	Knock Sensor (KS) 2
(11)	Heated Oxygen Sensor (HO2S) 1

Figure 5:

Left Rear of the Engine Components (L26)


(1)	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(2)	Exhaust Gas Recirculation (EGR) Valve
(3)	Evaporative Emission (EVAP) Canister Purge Solenoid Valve

Figure 6:

Top Rear of Engine Components (L26) 1 of 2


(1)	Exhaust Gas Recirculation (EGR) Valve
(2)	Fuel Injector 6
(3)	Fuel Injector 4
(4)	Fuel Injector 2
(5)	Generator
(6)	Heated Oxygen Sensor (HO2S) 1

Figure 7:

Top Rear of Engine Components (L26) 2 of 2


(1)	Exhaust Gas Recirculation (EGR) Valve
(2)	Intake Manifold
(3)	Valve Cover
(4)	Secondary Air Injection (AIR) Shutoff valve (NU6)

Figure 8:

Front of Engine Components (LS4)


(1)	Engine Coolant Temperature (ECT) Sensor
(2)	Ignition Coil 1
(3)	Ignition Coil 3
(4)	Ignition Coil 5
(5)	Ignition Coil 7
(6)	Throttle Body
(7)	Engine Oil Pressure (EOP) Sensor
(8)	Valve Lifter Oil Manifold (VLOM) Assembly
(9)	Coolant Heater (K05)
(10)	Knock Sensor (KS) 1

Figure 9:

Left Front of Engine Compartment Components (LS4)


(1)	Transmission Control Module (TCM)
(2)	Air Cleaner Housing
(3)	Radiator Core Support
(4)	Engine Control Module (ECM)

Figure 10:

Top Left Side of Engine Components (LS4)


(1)	Throttle Body
(2)	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(3)	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector

Figure 11:

Top of Engine Components (LS4)


(1)	Ignition Coil 8
(2)	Fuel Injector 8
(3)	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(4)	Manifold Absolute Pressure (MAP) Sensor
(5)	Throttle Body
(6)	Engine Oil Pressure (EOP) Sensor
(7)	Fuel Injector 7
(8)	Ignition Coil 7
(9)	Fuel Injector 5
(10)	Ignition Coil 5
(11)	Fuel Injector 3
(12)	Ignition Coil 3
(13)	Fuel Injector 1
(14)	Ignition Coil 1
(15)	Fuel Injector 2
(16)	Ignition Coil 2
(17)	Fuel Injector 4
(18)	Ignition Coil 4
(19)	Fuel Injector 6
(20)	Ignition Coil 6

Figure 12:

Rear of Engine Components (LS4)


(1)	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(2)	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)	Generator
(4)	Camshaft Position (CMP) Sensor
(5)	Crankshaft Position (CKP) Sensor
(6)	Knock Sensor (KS) 2
(7)	Ignition Coil 2
(8)	Ignition Coil 4
(9)	Ignition Coil 6
(10)	Ignition Coil 8
(11)	Manifold Absolute Pressure (MAP) Sensor

Figure 13:

Top of the Engine Components (LY7)


(1)	Valve Cover - Right
(2)	Fuel Injector 5
(3)	Intake Manifold
(4)	Fuel Injector 6
(5)	Fuel Injector 4
(6)	Fuel Injector 2
(7)	Valve Cover - Left
(8)	Fuel Injector 1
(9)	Fuel Injector 3

Figure 14:

Front of the Engine Components (LY7) 1 of 2


(1)	X107
(2)	J121
(3)	J120
(4)	J110
(5)	J119
(6)	X109
(7)	J103
(8)	J131
(9)	J133
(10)	G131
(11)	Engine Coolant Temperature (ECT) Sensor
(12)	Starter Solenoid
(13)	Starter Motor
(14)	Engine Oil Pressure (EOP) Sensor

Figure 15:

Front of the Engine Components (LY7) 2 of 2


(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 Pressure (EOP) Sensor

Figure 16:

Upper Left Side of the Engine Components (LY7)


(1)	Air Cleaner Assembly
(2)	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(3)	Engine Block

Figure 17:

Top Right of the Engine Components (LY7)


(1)	Engine Control Module (ECM) X1
(2)	Engine Control Module (ECM)
(3)	Engine Control Module (ECM) X2

Figure 18:

Side of the Engine Components (LY7) 1 of 2


(1)	Camshaft Position (CMP) Sensor - Bank 1 Exhaust
(2)	Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust Bank 1
(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 19:

Side of the Engine Components (LY7) 2 of 2


(1)	Ignition Coil 5
(2)	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)	Ignition Coil 3
(4)	Ignition Coil 1
(5)	Throttle Body
(6)	Knock Sensor (KS) 1
(7)	Crankshaft Position (CKP) Sensor
(8)	Coolant Heater (K05)

Figure 20:

Rear of the Engine Components (LY7)


(1)	Heated Oxygen Sensor (HO2S) 1
(2)	Engine Valve Cover
(3)	Exhaust Manifold

Figure 21:

Right Front Frame and Underbody (L26)


(1)	Catalytic Converter
(2)	Heated Oxygen Sensor (HO2S) 2

Figure 22:

Under Engine Components (LS4)


(1)	Heated Oxygen Sensor (HO2S) 2

Figure 23:

Transaxle


(1)	Pressure Control (PC) Solenoid Valve
(2)	1-2 Shift Solenoid (SS) Valve
(3)	Automatic Transmission Input Shaft Speed (ISS) Sensor
(4)	2-3 Shift Solenoid (SS) Valve
(5)	Automatic Transmission Internal Mode Switch (IMS)
(6)	Vehicle Speed Sensor (VSS)
(7)	Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
(8)	Automatic Transmission Fluid Temperature (TFT)Sensor
(9)	Torque Converter Clutch (TCC) Solenoid Valve