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.
2012 GMC Terrain FWD L4-2.4LFACTORY OEM SERVICE PROCEDURE
Air Flow Meter/Sensor: Locations
Front of Vehicle/Engine Compartment Component Views
Engine Compartment Components (1 of 3)
1 - B75B Mass Air Flow/Intake Air Temperature Sensor
2 - K20 Engine Control Module
3 - G6 Brake Booster Pump - Auxiliary
4 - B137 Power Steering Shaft Torque Sensor (LEA)
5 - K43 Power Steering Control Module (LEA)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.