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Powertrain Component Views



Powertrain Component Views

EVAP Purge Solenoid and EGR Valve (LD8/L37/4.6L)




1 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2 - Exhaust Gas Recirculation (EGR) Valve

HO2S Sensor 2 (Post HO2)




1 - Heated Oxygen Sensor (HO2S) 2

Secondary Air Injection (AIR) Pump (LD8/L37/4.6L with NU6)




1 - Secondary Air Injection (AIR) Pump

Internal Electronic Component Locations 4T65E




1 - Pressure Control (PC) Solenoid Valve Assembly
2 - 1-2, 3-4 Shift Solenoid (SS) Valve Assembly
3 - Automatic Transmission Input Shaft Speed (A/T ISS) Sensor Assembly
4 - 2-3 Shift Solenoid (SS) Valve Assembly
5 - Lever Assembly-Manual Shaft Detent with Shift Position Switch - Internal Mode Switch (IMS)
6 - Vehicle Speed Sensor (VSS) Assembly
7 - Transmission Fluid Pressure (TFP) Manual Valve Position Switch Assembly
8 - Transmission Fluid Temperature (TFT) Sensor
9 - Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly

Rear of Engine Compartment, on the Top Rear of the Engine




1 - Secondary Air Injection (AIR) Check Valve (NU6)

Left Front Corner of the Engine Compartment




1 - Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor
2 - Engine Control Module (ECM) (LD8/L37/4.6L), Powertrain Control Module (PCM) (L26/3.8L), in the Air Cleaner Assembly

Front of the Engine (L26/3.8L)




1 - Ignition Coil Module
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 Actuator Control (TAC) Module
8 - Engine Coolant Temperature (ECT) Sensor
9 - Starter Solenoid
10 - Starter
11 - Engine Oil Level Switch
12 - G110
13 - Knock Sensor (KS) 1

Rear of the Engine (L26/3.8L)




1 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2 - Throttle Actuator Control (TAC) Module
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) Sensor
10 - Knock Sensor (KS) 2
11 - Heated Oxygen Sensor (HO2S) 1

Electronic Component Views 4T80E




1 - Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve
2 - Pressure Control Solenoid (PCS) Valve
3 - Automatic Transmission Input (Shaft) Speed Sensor (ISS)
4 - Vehicle Speed Sensor (VSS)
5 - 1-2 and 2-3 Shift Solenoid (1-2 SS) (2-3 SS) Valves
6 - Internal Mode Switch (IMS)
7 - Automatic Transmission Fluid Temperature (TFT) Sensor

Top of the Engine (LD8/L37/4.6L)

Top of the Engine:




1 - Starter Motor
2 - Manifold Absolute Pressure (MAP) Sensor
3 - Throttle Body Assembly
4 - Fuel Injector 8
5 - Ignition Coil/Module 8
6 - Fuel Injector 6
7 - Ignition Coil/Module 6
8 - Knock Sensor (KS) 2
9 - Fuel Injector 4
10 - Ignition Coil/Module 4
11 - Ignition Coil/Module 2
12 - Fuel Injector 2
13 - Crankshaft Position (CKP) Sensor
14 - Knock Sensor (KS) 1
15 - Camshaft Position (CMP) Sensor
16 - Ignition Coil/Module 1
17 - Ignition Coil/Module 3
18 - Fuel Injector 1
19 - Ignition Coil/Module 5
20 - Fuel Injector 3
21 - Ignition Coil/Module 7
22 - Fuel Injector 5
23 - Fuel Injector 7

Front of the Engine (LD8/L37/4.6L)




1 - Valve Cover
2 - Ignition Coil/Module 2
3 - Ignition Coil/Module 4
4 - Ignition Coil/Module 6
5 - Ignition Coil/Module 8
6 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
7 - Engine Oil Pressure (EOP) Switch

Rear of the Engine (LD8/L37/4.6L)




1 - Throttle Body Assembly
2 - Manifold Absolute Pressure (MAP) Sensor
3 - Valve Cover
4 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
5 - Engine Coolant Temperature (ECT) Sensor
6 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2

Left Side of Engine (LD8/L37/4.6L)




1 - Engine - 4.6L
2 - A/C Compressor Clutch
3 - Generator
4 - G110

G112, G114, and G115 (LD8/L37/4.6L)




1 - Exhaust Manifold
2 - G114
3 - G112
4 - G115

Above the Transmission (L26/3.8L)




1 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2 - Intake Manifold
3 - Vehicle Speed Sensor (VSS)
4 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
5 - G114
6 - Transmission

Near the Rear Cylinder Head (LD8/L37/4.6L)




1 - Exhaust Gas Recirculation (EGR) Valve
2 - Valve Cover
3 - G100
4 - Engine Coolant Temperature (ECT) Sensor

Front of the Engine (L26/3.8L)




1 - Generator
2 - Manifold Absolute Pressure (MAP) Sensor
3 - Throttle Actuator Control (TAC) Module
4 - Engine Coolant Heater
5 - Starter
6 - Knock Sensor (KS) 1
7 - Engine Oil Level Switch
8 - A/C Compressor Clutch
9 - Ignition Control Module (ICM)

Right Side of Engine-Engine Front (L26/3.8L)




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

G115 (L26/3.8L)




1 - Intake Manifold
2 - Ignition Control Module
3 - G115
4 - Harmonic Balancer