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.

2014 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Left Front of Engine Components (LFX)

Items
1: G13 Generator G13 Generator X1 (LFX)G13 Generator X1 (LKW)G13 Generator X2 (LFX)G13 Generator X2 (LKW)
2: B52E Heated Oxygen Sensor - Bank 2 Sensor 1 (LFX) B52E Heated Oxygen Sensor - Bank 2 Sensor 1 (LFX)
3: T8B Ignition Coil 2 T8B Ignition Coil 2 (LFX)T8B Ignition Coil 2 (LKW)T8B Ignition Coil 2 (LUK)
4: T8D Ignition Coil 4 T8D Ignition Coil 4 (LFX)T8D Ignition Coil 4 (LKW)T8D Ignition Coil 4 (LUK)
5: T8F Ignition Coil 6 (LFX) T8F Ignition Coil 6 (LFX)
6: Q29B Secondary Air Injection Solenoid Valve - Bank 2 (LFX with NU6) Q29B Secondary Air Injection Solenoid Valve - Bank 2 (LFX with NU6)
7: G18 High Pressure Fuel Pump G18 High Pressure Fuel Pump (LFX)G18 High Pressure Fuel Pump (LKW)G18 High Pressure Fuel Pump (LUK)
8: B34 Engine Coolant Temperature Sensor B34 Engine Coolant Temperature Sensor (LFX)B34 Engine Coolant Temperature Sensor (LKW)B34 Engine Coolant Temperature Sensor (LUK)
9: M64 Starter Motor M64 Starter Motor X1 (LFX)M64 Starter Motor X1 (LKW)M64 Starter Motor X1 (LUK)M64 Starter Motor X2 (LFX)M64 Starter Motor X2 (LKW)M64 Starter Motor X2 (LUK)
10: B68B Knock Sensor 2 B68B Knock Sensor 2 (LFX)B68B Knock Sensor 2 (LKW)
11: Q46 A/C Compressor Solenoid Valve Q46 A/C Compressor Solenoid Valve
12: B37 Engine Oil Pressure Switch B37 Engine Oil Pressure Switch (LFX)B37 Engine Oil Pressure Switch (LUK)
13: Q2 A/C Compressor Clutch Q2 A/C Compressor Clutch

Fig 1: Left Front of Engine Components (LFX)

Courtesy of GENERAL MOTORS COMPANY

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.