Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Cadillac STS 3.6 7FACTORY OEM SERVICE PROCEDURE
Engine Controls Component Views
| Callout | Component Name |
|---|---|
| 1 | Intake Manifold Runner Control (IMRC) Solenoid |
| 2 | Ignition Coil 5 |
| 3 | Evaporative Emission (EVAP) Canister Purge Solenoid Valve |
| 4 | Ignition Coil 3 |
| 5 | Ignition Coil 1 |
| 6 | Throttle Body Assembly |
| 7 | Knock Sensor (KS) - Bank 1 |
| 8 | Crankshaft Position (CKP) Sensor |
| 9 | Engine Block Heater Assembly |
| Callout | Component Name |
|---|---|
| 1 | Ignition Coil 2 |
| 2 | Ignition Coil 4 |
| 3 | Ignition Coil 6 |
| 4 | Barometric Pressure (BARO) Sensor |
| 5 | Intake Manifold Runner Control (IMRC) Solenoid |
| 6 | Engine Coolant Temperature (ECT) Sensor |
| 7 | Knock Sensor (KS) - Bank 2 |
| 8 | Engine Oil Level/Temperature Sensor |
| 9 | Engine Oil Pressure (EOP) Sensor |
| Callout | Component Name |
|---|---|
| 1 | Camshaft Position (CMP) Sensor - Exhaust Bank 1 |
| 2 | Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 1 |
| 3 | Camshaft Position (CMP) Actuator Solenoid - Intake Bank 1 |
| 4 | Camshaft Position (CMP) Sensor - Intake Bank 1 |
| 5 | Camshaft Position (CMP) Sensor - Intake Bank 2 |
| 6 | Camshaft Position (CMP) Actuator Solenoid - Intake Bank 2 |
| 7 | Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 2 |
| 8 | Camshaft Position (CMP) Sensor - Exhaust Bank 2 |
| Callout | Component Name |
|---|---|
| 1 | Mass Air Flow (MAF) Sensor |
| 2 | Radiator |
| 3 | Throttle Body Assembly |
| Callout | Component Name |
|---|---|
| 1 | Park Brake Switch |
| 2 | Brake Pedal Position Sensor |
| 3 | Accelerator Pedal Position (APP) Sensor |
| 4 | Left Front Floor Panel |
| Callout | Component Name |
|---|---|
| 1 | HO2S - Bank 2 Sensor 1 |
| 2 | HO2S - Bank 1 Sensor 1 |
| 3 | HO2S - Bank 1 Sensor 2 |
| 4 | HO2S - Bank 2 Sensor 2 |
| Callout | Component Name |
|---|---|
| 1 | EVAP Canister |
| 2 | Evaporative Emissions (EVAP) Canister Vent Solenoid (LY7/LH2) |
| 3 | Fuel Tank |
| 4 | Secondary Fuel Sender Assembly |
| 5 | Fuel Pump and Sender Assembly (LY7/LH2) |
| 6 | C420 |
| 7 | Fuel Tank Pressure (FTP) Sensor (LY7/LH2) |
| Callout | Component Name |
|---|---|
| 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 |
| Callout | Component Name |
|---|---|
| 1 | Evaporative Emission (EVAP) Canister Purge Solenoid Valve |
| 2 | Intake Manifold |
| 3 | Throttle Actuator Control (TAC) Motor |
| 4 | Engine Control Module (ECM) |
| 5 | G103 |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.