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.
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HOMESERVICE MANUALSFORD2012FUSION FWD L4-2.5LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSSENSORS AND SWITCHES - COMPUTERS AND CONTROL SYSTEMSKNOCK SENSORSERVICE AND REPAIR
2012 Ford Fusion FWD L4-2.5L
Knock Sensor: Service and Repair
2012 Ford Fusion FWD L4-2.5LSECTION Service and Repair
Knock Sensor (KS)
Removal and Installation
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Remove the intake manifold.
3. Remove the bolt and the Knock Sensor (KS).
- To install, tighten to 20 Nm (177 lb-in).
4. NOTE: The KS (Knock Sensor) must not touch the crankcase vent oil separator.
To install, reverse the removal procedure.
RENDER: 1.0x
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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.