why does my Honda CR-V engine make a knocking noise

Solution

1. Preparation

• Tools Required: OBD-II scanner, mechanic's stethoscope, compression tester, basic hand tools (sockets, wrenches).
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Oil Change

1. Drain Old Oil:
   • Place an oil pan under the oil pan.
   • Remove the oil drain plug with a socket wrench; allow oil to fully drain.
2. Replace Oil Filter:
   • Use an oil filter wrench to remove the old oil filter.
   • Apply a thin layer of new oil to the rubber gasket of the new filter and install it.
3. Add New Oil:
   • Reinstall the drain plug and torque to the manufacturer's specifications (typically 20-25 ft-lbs).
   • Fill the engine with the recommended type and amount of oil (usually 5W-20 for Honda CR-V).
4. Check for Leaks:
   • Start the engine and let it idle for a few minutes.
   • Inspect for any oil leaks around the oil filter and drain plug.

3. Address Engine Components

1. Inspect and Replace Components:
   • If knocking is due to worn components, replace the affected parts (e.g., timing belt, tensioners).
   • For engine mounts, remove the bolts securing the mounts and replace with new mounts; torque to specifications.
2. Compression Repair:
   • If the compression test shows low readings, consider performing a valve adjustment or replacing the head gasket if necessary.