my Honda Civic 10th Generation (2016-2021) makes a knocking noise when idling

Solution

1. Preparation

• Gather tools and parts necessary for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent any electrical issues during the procedure.

2. Inspect and Replace Engine Mounts

• Tools Required: Socket set, torque wrench, pry bar
• Sub-steps:
  1. Raise the front of the vehicle using a jack and secure it on jack stands.
  2. Locate the engine mounts; these are typically found on the front, rear, and sides of the engine.
  3. Use a socket set to remove the bolts securing the damaged engine mount.
  4. Carefully support the engine with a pry bar or jack to relieve pressure on the mount.
  5. Remove the old engine mount and replace it with a new one.
  6. Torque the mounting bolts to the manufacturer's specifications (refer to the service manual for specific torque values).

3. Change Engine Oil and Filter

• Tools Required: Oil filter wrench, oil catch pan, funnel
• Sub-steps:
  1. Remove the oil drain plug and allow the old oil to fully drain into the catch pan.
  2. Replace the oil drain plug and tighten it to specifications.
  3. Remove the old oil filter using an oil filter wrench; lubricate the rubber gasket of the new filter with fresh oil and install it.
  4. Add new engine oil as per the manufacturer's specifications (5W-20 is typical for Honda Civics).

4. Inspect Accessory Belts and Pulleys

• Tools Required: Visual inspection tools (flashlight), socket set
• Sub-steps:
  1. Inspect the accessory belt for signs of wear, cracks, or misalignment.
  2. Check the pulleys for looseness or unusual noise when rotated by hand.
  3. Replace worn belts or pulleys as necessary.