GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2004 🢒 DeVille 🢒 Engine 🢒 Engine Controls - 4.6L 🢒 Engine Controls Component Views
Figure 1:

MAP, IAC, ECT, TP Sensors
Object Number: 602335 Size: SH
(1)Manifold Absolute Pressure (MAP) Sensor
(2)Idle Air Control (IAC) Valve
(3)Engine Coolant Temperature (ECT) Sensor
(4)Throttle Position (TP) Sensor
Figure 2:

Left Side of Engine Compartment
Object Number: 602337 Size: SH
(1)Mass Air Flow (MAF) Sensor
Figure 3:

Rear of Engine Compartment, on the Top Rear of the Engine
Object Number: 893836 Size: MF
(1)Secondary Air Injection (AIR) Check Valve (NU6)
Figure 4:

Left Front Corner of the Engine Compartment
Object Number: 893598 Size: MF
(1)Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor
(2)Engine Control Module (ECM), in the Air Cleaner Assembly
Figure 5:

EVAP Purge Solenoid, and EGR Valve
Object Number: 602336 Size: SH
(1)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(2)Exhaust Gas Recirculation (EGR) Valve
Figure 6:

CKP B, CKP A, Engine Oil Pressure Switch, and Engine Oil Level Switch
Object Number: 602338 Size: SH
(1)Crankshaft Position (CKP) Sensor B
(2)Crankshaft Position (CKP) Sensor A
(3)Engine Oil Pressure (EOP) Switch
(4)Engine Oil Level Switch
Figure 7:

Engine Compartment, Top of Engine
Object Number: 1394556 Size: MF
(1)C139 (C140 Similar)
(2)Ignition Coil/Module 8 (7 similar)
(3)Ignition Coil/Module 6 (5 similar)
(4)Ignition Coil/Module 4 (3 similar)
(5)Ignition Coil/Module 2 (1 similar)
Figure 8:

CMP, VSS, and HO2S Bank 1 Sensor 1
Object Number: 602339 Size: SH
(1)Camshaft Position (CMP) Sensor
(2)Vehicle Speed Sensor (VSS)
(3)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Figure 9:

HO2S Bank 1 Sensor 2 (Post HO2)
Object Number: 1436994 Size: SH
(1)HO2S Bank 1 Sensor 2 (Post HO2)
Figure 10:

HO2S Bank 2 Sensor 1 (Front HO2)
Object Number: 1437000 Size: SH
(1)HO2S Bank 2 Sensor 1 (Front HO2)
Figure 11:

Knock Sensors
Object Number: 1436991 Size: SH
(1)Knock Sensor 1 (Knock Sensor 2 Similar)
Figure 12:

AIR Relay
Object Number: 736519 Size: SH
(1)Secondary Air Injection (AIR) Pump Relay
(2)Coolant Level Switch (in Coolant Surge Tank)
Figure 13:

Secondary Air Injection (AIR) Pump
Object Number: 833366 Size: LF
(1)Secondary Air Injection (AIR) Pump
Figure 14:

IAC Connector and TP Sensor
Object Number: 574138 Size: SH
(1)Idle Air Control (IAC) Valve Electrical Connector
(2)Throttle Position (TP) Sensor Electrical Connector
(3)Throttle Position (TP) Sensor
(4)Idle Air Control (IAC) Valve
Figure 15:

Fuel Rail Assembly
Object Number: 597227 Size: SH
(1)Fuel Injector Retaining Clip
(2)Fuel Injector
(3)Fuel Rail Assembly
Figure 16:

EVAP Vent Valve
Object Number: 342059 Size: SF
(1)Retainer
(2)Fresh Air Line
(3)Bolt
(4)Evaporative Emission (EVAP) Canister Vent Solenoid
(5)Evaporative Emission (EVAP) Canister Vent Solenoid Electrical Connector
Figure 17:

Fuel Tank Pressure Sensor
Object Number: 342178 Size: SF
(1)Fuel Sender Access Panel
(2)Fuel Pump and Sender Assembly
(3)Fuel Tank Pressure (FTP) Sensor