why does my Honda CR-V Fifth Generation (2017-2022) make a knocking noise when starting

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Oil Change

• Sub-steps:
  1. Remove the oil drain plug using a socket wrench and drain old oil into a container.
  2. Replace the oil filter using an oil filter wrench, ensuring the rubber O-ring comes off with it.
  3. Install a new oil filter (ensure it's pre-filled with oil) and tighten it by hand.
  4. Replace the drain plug and torque to manufacturer specifications (typically around 30 lb-ft).
  5. Refill the engine with the recommended oil type (usually 0W-20 for CR-V) using a funnel.

3. Starter Inspection

• Sub-steps:
  1. Remove the starter motor by disconnecting the wiring harness and removing the mounting bolts.
  2. Inspect the starter for damage or excessive wear; replace if necessary.
  3. Reinstall the starter motor, ensuring all connections are secure and bolts are torqued to specification.

4. Timing Chain/Belt Inspection

• Sub-steps:
  1. Remove the engine cover and any components obstructing access to the timing cover.
  2. Inspect the timing chain/belt for signs of wear, slack, or misalignment.
  3. Replace the timing chain/belt and tensioner if any issues are discovered, following manufacturer procedures.

5. Engine Mount Check

• Sub-steps:
  1. Inspect engine mounts visually for cracks or signs of separation.
  2. Tighten any loose bolts or replace damaged mounts as needed.

Tools Required:

• OBD-II scanner
• Socket set
• Oil filter wrench
• Torque wrench
• Mechanic's stethoscope

Parts Required:

• Engine oil (0W-20)
• Oil filter
• Starter motor (if necessary)
• Timing chain/belt (if necessary)
• Engine mounts (if necessary)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Disconnect battery before working on electrical systems.
• Allow engine to cool before opening the oil drain plug.