why is my Honda Civic engine making a knocking noise?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical issues while working on the engine.
• Allow the engine to cool down to avoid burns.

2. Check Engine Oil

• Remove the oil dipstick and wipe it clean, then reinsert and remove to check the level.
• If oil is low, add the appropriate type of oil as specified in the owner’s manual.
• If the oil appears contaminated, proceed to replace the oil and filter.

3. Remove Engine Components

• If the knocking persists, remove components that may obstruct access to the engine internals, including any intake manifolds or valve covers.
• Use a socket set to remove bolts carefully and keep track of all removed parts.

4. Inspect and Repair

• Inspect the timing chain/belt for wear and ensure it is properly tensioned.
• Check connecting rods and pistons for wear or damage.
• If rod knock is detected, replace the connecting rod bearings, which involves:
  1. Removing the oil pan.
  2. Detaching the rods from the crankshaft.
  3. Replacing the bearings with new ones, ensuring proper torque specifications are followed.
• Reassemble all removed components in reverse order, using a torque wrench to ensure proper tightness.