GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2004 🢒 Regal 🢒 Engine 🢒 Engine Controls - 3.8L (L36 and L67) 🢒 Engine Controls Component Views
Figure 1:

LF of the Engine Compartment Components
Object Number: 924700 Size: MF
(1)Powertrain Control Module (PCM)
(2)Engine Wiring Harness
Figure 2:

Lower Front of the Engine Components (L36)
Object Number: 1364274 Size: MF
(1)Starter Solenoid B Terminal
(2)Fusible Link from Generator
(3)G113
(4)Battery Cable Wiring Harness
(5)Engine Wiring Harness
(6)Starter Solenoid S Terminal
(7)Engine Oil Level Sensor
(8)Knock Sensor (KS) 1
(9)Starter
Figure 3:

Lower Front of the Engine Components (L67)
Object Number: 1364339 Size: MF
(1)Starter Solenoid B Terminal
(2)Fusible Link from Generator
(3)G113
(4)Battery Cable Wiring Harness
(5)Engine Wiring Harness
(6)Starter Solenoid S Terminal
(7)Engine Oil Level Sensor
(8)Knock Sensor (KS) 1
Figure 4:

Lower Rear of the Engine (L36/L67)
Object Number: 1043361 Size: MF
(1)Knock Sensor (KS) 2
(2)Knock Sensor (KS) 2 Connector
(3)Knock Sensor (KS) 2 Jumper Harness
(4)C125
Figure 5:

RF of the Engine Compartment (L36/L67)
Object Number: 1043757 Size: MF
(1)Camshaft Position (CMP) Sensor
(2)Ignition Control Module (ICM) Wiring Harness
(3)C110
(4)Ignition Control Module (ICM)
(5)Ignition Coils
(6)G111
(7)Ignition Control Module (ICM) Wiring Harness
(8)Ignition Control Module (ICM) Wiring Harness
(9)Crankshaft Position (CKP) Sensor
Figure 6:

Upper Left Side of the Engine (L36/L67)
Object Number: 1267021 Size: LF
(1)Idle Air Control (IAC) Valve
(2)Mass Air Flow (MAF) Sensor
(3)Intake Air Temperature (IAT) Sensor
(4)Throttle Position (TP) Sensor
(5)Exhaust Gas recirculation (EGR) Valve
(6)Heated Oxygen Sensor (HO2S) 1 Connector
(7)Manifold Absolute Pressure (MAP) Sensor Connector
Figure 7:

Upper Front of the Engine (L36)
Object Number: 1268173 Size: MF
(1)Manifold Absolute Pressure (MAP) Sensor
(2)C110
(3)Fuel Injector 5
(4)C126
(5)Engine Wiring Harness
(6)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(7)Fuel Injector 3
(8)Fuel Injector 1
(9)Ignition Control Module (ICM) Wiring Harness
Figure 8:

Upper Front of the Engine (L67)
Object Number: 1273290 Size: MF
(1)C110
(2)C126
(3)Idle Air Control (IAC) Valve
(4)Throttle Position (TP) Sensor
(5)Mass Air Flow (MAF) Sensor
(6)Intake Air Temperature (IAT) Sensor Connector
(7)Supercharger Boost Control Solenoid
(8)Fuel Injector 5
(9)Fuel Injector 3
(10)Fuel Injector 1
Figure 9:

Upper Rear of the Engine Components (L36)
Object Number: 924806 Size: MF
(1)Generator BAT Terminal
(2)Generator
(3)Generator Connector
(4)Heated Oxygen Sensor (HO2S) 1
(5)Fuel Injector 2
(6)Fuel Injector 4
(7)Fuel Injector 6
(8)Engine Wiring Harness
Figure 10:

Upper Rear of the Engine Components (L67)
Object Number: 924570 Size: MF
(1)Generator BAT Terminal
(2)Generator
(3)Generator Connector
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Fuel Injector 2
(6)Fuel Injector 4
(7)Fuel Injector 6
(8)Emission Evaporative (EVAP) Canister Purge Solenoid Valve
Figure 11:

Fuel Tank
Object Number: 1364522 Size: LF
(1)Fuel Pump and Sender Wiring Harness
(2)Fuel Pump and Sender Assembly
(3)Fuel Tank Pressure (FTP) Sensor
(4)Fuel Line Quick Connector
(5)Fuel Pump
(6)Base Plate
(7)Fuel Strainer
(8)Fuel Level Sensor
(9)Springs
Figure 12:

Under Vehicle, Rear of the Engine
Object Number: 1060619 Size: MF
(1)Catalytic Converter
(2)Engine Wiring Harness
(3)Heat Exhaust Shield
(4)Heated Oxygen Sensor (HO2S) 2
Figure 13:

Lower Rear of the Engine (L36/L67)
Object Number: 1273481 Size: LF
(1)C125
(2)Engine Oil Pressure Switch
(3)Vehicle Speed Sensor
(4)Knock Sensor (KS) 2
(5)Knock Sensor (KS) 2 Connector
(6)Knock Sensor (KS) 2 Jumper Harness
(7)C125
Figure 14:

LR of the Vehicle
Object Number: 1318236 Size: LF
(1)Evaporative Emissions (EVAP) Canister Vent Solenoid Valve
(2)Body Wiring Harness
(3)Evaporative Emissions (EVAP) Canister
(4)P425
(5)Body Wiring Harness