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.
Knock Sensor: Service and Repair
2012 Ford Focus L4-2.0LSECTION Service and Repair
Knock Sensor (KS) - 2.0L GDI
WARNING: Before beginning any service procedure, REFER to Safety Warnings . Failure to follow this instruction may result in serious personal injury.
Exploded View
Removal
1. Remove the intake manifold. REFER to Intake Manifold .
2. Remove the 2 bolts and the 2 KS (Knock Sensor).
Installation
1. Install the 2 KS (Knock Sensor) and the 2 bolts.
- Tighten to 20 Nm (177 lb-in).
2. Install the intake manifold. REFER to Intake Manifold .
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.