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 Chevrolet Sonic L4-1.4L TurboFACTORY OEM SERVICE PROCEDURE
Vehicle Speed Sensor: Service and Repair
Vehicle Speed Sensor Replacement
Removal Procedure
1. Disconnect the speedometer speed sensor electrical connector.
2. Remove the speedometer housing retaining bolt (2).
3. Remove the speedometer-driven gear (1).
Installation Procedure
1. Coat the O-ring with transmission fluid.
2. Install the speedometer-driven gear (1).
Caution:
Refer to Fastener Caution Fastener Caution.
3. Install the speedometer housing retaining bolt (2) and tighten to 4 Nm (35 lb in).
4. Connect the speedometer speed sensor electrical connector.
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.