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 MANUALSMAZDA2009CX-9 FWD V6-3.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMCRANKSHAFT POSITION SENSORSERVICE AND REPAIR
2009 Mazda CX-9 FWD V6-3.7L
Crankshaft Position Sensor: Service and Repair
2009 Mazda CX-9 FWD V6-3.7LSECTION Service and Repair
CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZI-3.7]
NOTE:
- Disconnect the connector after the CKP sensor is removed to prevent the CKP sensor from falling off.
- The bolt and sensor are integrated and cannot be pulled out.
- When removing the CKP sensor, be careful not to drop the tool.
- The bolt and sensor must be pulled in different directions. Pull them as indicated in the figure.
Removal
1. Disconnect the negative battery cable.
2. Remove the following part for easier access.
- Remove the Catalytic Converter (WU-TWC) (LH). Service and Repair
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
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.