my Honda Civic 11th Generation (2022-Present) is making a strange noise when starting, why?

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, battery terminal cleaner.
• Disconnect the negative terminal of the battery to ensure safety while working on the electrical system.

2. Battery Inspection and Replacement

1. Remove the battery terminals: Use a socket set to loosen and disconnect the negative (-) terminal first, followed by the positive (+) terminal.
2. Clean the terminals: Use a battery terminal cleaner to remove any corrosion and ensure a good connection.
3. Test the battery: If the battery voltage is below 12.4 volts, consider replacing it.
   • If replacing, install the new battery in reverse order: connect the positive (+) terminal first, then the negative (-) terminal. Ensure they are securely tightened.
4. Torque the battery terminals: Tighten the terminals to the manufacturer's specifications (typically around 10-15 Nm).

3. Starter Motor Inspection and Replacement

1. Locate the starter motor: Refer to the vehicle service manual for the exact location.
2. Remove the starter motor: Disconnect the wiring harness and remove the mounting bolts using a socket set.
3. Inspect the starter gear: Check for wear or damage to the gear and the flywheel teeth. Replace the starter motor if any issues are found.
4. Install the new starter motor: Position it correctly and tighten the mounting bolts to the manufacturer's specifications (usually around 20-25 Nm).
5. Reconnect the wiring harness ensuring a secure connection.