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.
2018 Buick Regal BaseFACTORY OEM SERVICE PROCEDURE
Engine Components - Right Front (LGX)
WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Engine Components - Right Front (LGX)
| Component Name | Callout |
|---|---|
| Q6A Camshaft Position Actuator Solenoid Valve - Bank 1 Exhaust (LGX) Q6A Camshaft Position Actuator Solenoid Valve - Bank 1 Exhaust | 1 |
| Q6B Camshaft Position Actuator Solenoid Valve - Bank 1 Intake (LGX) Q6B Camshaft Position Actuator Solenoid Valve - Bank 1 Intake | 2 |
| B74 Manifold Absolute Pressure Sensor B74 Manifold Absolute Pressure Sensor (LGX) | 3 |
| Q6D Camshaft Position Actuator Solenoid Valve - Bank 2 Intake (LGX) Q6D Camshaft Position Actuator Solenoid Valve - Bank 2 Intake | 4 |
| Q6C Camshaft Position Actuator Solenoid Valve - Bank 2 Exhaust (LGX) Q6C Camshaft Position Actuator Solenoid Valve - Bank 2 Exhaust | 5 |
| T8B Ignition Coil 2 T8B Ignition Coil 2 (LGX) | 6 |
| Q83B Valve Lifter Oil Solenoid Valve - Bank 2 (LGX) Q83B Valve Lifter Oil Solenoid Valve - Bank 2 | 7 |
| T8D Ignition Coil 4 T8D Ignition Coil 4 (LGX) | 8 |
| B23D Camshaft Position Sensor - Bank 2 Intake (LGX) B23D Camshaft Position Sensor - Bank 2 Intake | 9 |
| B75C Multifunction Intake Air Sensor B75C Multifunction Intake Air Sensor | 10 |
| T8F Ignition Coil 6 (LGX) T8F Ignition Coil 6 | 11 |
| B52E Heated Oxygen Sensor - Bank 2 Sensor 1 (LGX) B52E Heated Oxygen Sensor - Bank 2 Sensor 1 | 12 |
| G13 Generator G13 Generator X1 (LGX) , or G13 Generator X2 (LGX+KL9) | 13 |
| Q46 A/C Compressor Solenoid Valve Q46 A/C Compressor Solenoid Valve | 14 |
| B52F Heated Oxygen Sensor - Bank 2 Sensor 2 (LGX) B52F Heated Oxygen Sensor - Bank 2 Sensor 2 | 15 |
| G1 A/C Compressor | 16 |
| Q2 A/C Compressor Clutch Q2 A/C Compressor Clutch | 17 |
| Q84B Camshaft Position Actuator Park Lock Solenoid Valve - Bank 2 Intake (LGX) Q84B Camshaft Position Actuator Park Lock Solenoid Valve - Bank 2 Intake | 18 |
| Q84A Camshaft Position Actuator Park Lock Solenoid Valve - Bank 1 Intake (LGX) Q84A Camshaft Position Actuator Park Lock Solenoid Valve - Bank 1 Intake | 19 |
Factory Service Tools
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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.
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