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
Fuel Pressure Sensor: Locations
Wheels/Vehicle Underbody Component Views
Fuel System Components
1 - B46B Fuel Level Sensor - Secondary
2 - B150 Fuel Tank Pressure Sensor
3 - Q13 Evaporative Emission Vent Solenoid Valve
4 - B46A Fuel Level Sensor - Primary
5 - G12 Fuel Pump
6 - B47 Fuel Pressure Sensor
7 - B198 Fuel Composition Sensor (LFW with FHS)
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.