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 Fiesta L4-1.6LFACTORY OEM SERVICE PROCEDURE
Exploded Views
Engine Control Components - Exploded View
Camshaft Position (CMP) Sensor
NOTE: Lubricate the O-ring seals with clean engine oil.
Crankshaft Position (CKP) Sensor
Mass Air Flow (MAF) Sensor
Heated Oxygen Sensor (HO2S) Sensor
NOTE: If necessary, lubricate the HO2S with penetrating and lock lubricant to assist in removal.
NOTE: Apply anti-seize to the threads of the HO2S prior to installing.
NOTE: The correct torque wrench setting must be calculated when using a commercially available exhaust gas sensor socket to install the HO2S.
Catalyst Monitor Sensor (CMS)
NOTE: If necessary, lubricate the CMS with penetrating and lock lubricant to assist in removal.
NOTE: Apply anti-seize to the threads of the CMS prior to installing.
NOTE: The correct torque wrench setting must be calculated when using a commercially available exhaust gas sensor socket to install the CMS.
Knock Sensor (KS)
NOTICE: The RH Knock Sensor (KS) must be installed in the 2 o'clock position and the LH KS must be installed in the 11 o'clock position. Failure to follow these instructions may result in damage to the engine.
NOTE: The intake manifold must be removed to access the KS. For additional information, refer to Engine - 1.6L Service and Repair.
Engine Coolant Temperature (ECT) Sensor
NOTE: The PCM must be removed to access the ECT sensor. For additional information, refer to Powertrain Control Module (PCM) Service and Repair .
Variable Camshaft Timing (VCT) Oil Control Solenoid
NOTE: Intake solenoid shown, exhaust solenoid similar.
NOTE: Lubricate the O-ring seals with clean engine oil.
Clutch Pedal Position (CPP) Switch
1. Refer to the procedures and/or exploded views for any Warnings, Notices, Notes, Materials, Specifications, and Special Tools. Items in the exploded views may not be listed in order of removal.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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