Engine - Front Components (L3T)

2025 Chevrolet Trailblazer ACTIV, FWDSECTION Engine - Front Components (L3T)
GM6439351Courtesy of GENERAL MOTORS COMPANY
Items
1. B52A Heated Oxygen Sensor 1 B52A Heated Oxygen Sensor 1 (L3T & F48) , or B52A Heated Oxygen Sensor 1 (L3T - F48)
2. Q6E Camshaft Position Actuator Solenoid Valve - Exhaust Q6E Camshaft Position Actuator Solenoid Valve - Exhaust (L3T)
3. B23E Camshaft Position Sensor - Exhaust B23E Camshaft Position Sensor - Exhaust
4. Q6F Camshaft Position Actuator Solenoid Valve - Intake Q6F Camshaft Position Actuator Solenoid Valve - Intake (L3T)
5. B23F Camshaft Position Sensor - Intake B23F Camshaft Position Sensor - Intake
6. Q38 Throttle Body Q38 Throttle Body
7. G58 Evaporative Emission Purge Pump G58 Evaporative Emission Purge Pump
8. B65 Intake Manifold Pressure and Air Temperature Sensor B65 Intake Manifold Pressure and Air Temperature Sensor
9. M64 Starter Motor M64 Starter Motor X1 (L3T) , or M64 Starter Motor X2 (L3T)
10. G59 Engine Coolant Pump (L3T) G59 Engine Coolant Pump (L3T)
11. Q2 A/C Compressor Clutch Q2 A/C Compressor Clutch
12. G13 Generator G13 Generator X1 , or G13 Generator X2 (L3T)
13. B34B Engine Coolant Temperature Sensor 2 (L3T) B34B Engine Coolant Temperature Sensor 2 (L3T)
14. B37B Engine Oil Pressure Sensor B37B Engine Oil Pressure Sensor (L3T & F48) , or B37B Engine Oil Pressure Sensor (L3T - F48)
15. B52B Heated Oxygen Sensor 2 B52B Heated Oxygen Sensor 2 (L3T & F48)
RENDER: 1.0x

NO RELATED

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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.