KNOCK SENSOR (KS) REMOVAL/INSTALLATION [MZI 3.7 V6]

NOTE:
- Put a tray under the converter housing to receive the engine coolant.

1. Disconnect the negative battery cable. Removal and Replacement

2. Perform the following procedure for easier access.

- Complete the "BEFORE SERVICE PRECAUTION". Before Service Precaution
- Remove the engine cover. Engine Cover Removal/Installation
- Remove the ventilation hose. Service and Repair
- Remove the TP sensor connector. Service and Repair
- Remove the vacuum hose (to purge solenoid valve). Service and Repair
- Remove the vacuum hose (to master back). Service and Repair
- Remove the dynamic chamber. Service and Repair
- Remove the fuel hose. Quick Release Connector Removal/Installation
- Remove the fuel distributor. Service and Repair
- Remove the intake manifold. Service and Repair

3. Remove in the order indicated in the table.

NOTE:
- Lubricate the new O-ring with clean engine coolant for installation.

4. Install in the reverse order of removal.

5. Complete the "AFTER SERVICE PRECAUTION". After Service Precaution

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.

Safety Warning

Knock Sensor: Service and Repair

Use the Manual With the Right Hardware

When to See a Mechanic

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