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.
2011 Ford Taurus AWD V6-3.5L TurboFACTORY OEM SERVICE PROCEDURE
Knock Sensor: Service and Repair
Knock Sensor (KS) - 3.5L GTDI
NOTE: LH cylinder head removed from art for clarity.
Removal and Installation
1. Remove the coolant inlet pipe. For additional information, refer to Coolant Inlet Pipe - 3.5L Gasoline Turbocharged Direct Injection (GTDI) in Engine Cooling Service and Repair.
2. Remove the fuel rail. For additional information, refer to Fuel Rail Fuel Rail.
3. Disconnect the Knock Sensor (KS) electrical connector.
4. Remove the 2 bolts and the KS.
- To install, tighten to 20 Nm (177 lb-in).
5. To install, reverse the removal procedure.
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.