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 MANUALSMERCURY2011MARINER 2WD V6-3.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMCRANKSHAFT POSITION SENSORSERVICE AND REPAIR
2011 Mercury Mariner 2WD V6-3.0L
Crankshaft Position Sensor: Service and Repair
2011 Mercury Mariner 2WD V6-3.0LSECTION Service and Repair
Crankshaft Position (CKP) Sensor
Removal
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.
2. Disconnect the Crankshaft Position (CKP) sensor electrical connector.
3. Remove the bolt and the CKP sensor.
Installation
1. Inspect the O-ring seal and install new as necessary.
2. NOTE: Lubricate the CKP sensor O-ring seal with clean engine oil.
Install the CKP sensor and bolt.
- Tighten to 10 Nm (89 lb-in).
3. Connect the CKP sensor electrical connector.
4. Using the scan tool, perform the Misfire Monitor Neutral Profile Correction procedure, following the on-screen instructions.
RENDER: 1.0x
NO RELATED
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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.