why does my Honda Accord engine make a knocking noise

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 negative battery terminal to ensure safety.

2. Change Engine Oil and Filter

• Tools Required: Oil filter wrench, socket set, drain pan, funnel.
• Remove the oil drain plug using the socket set and allow the old oil to completely drain into the pan.
• Replace the oil filter using the oil filter wrench, ensuring the rubber O-ring is lubricated with new oil before installation.
• Reinstall the drain plug and tighten it to the manufacturer's specified torque.
• Fill the engine with new oil, using the correct type and viscosity as recommended in the owner’s manual.

3. Inspect and Replace Engine Components

• Tools Required: Socket set, torque wrench, various hand tools.
• If the knocking persists, remove the valve cover to inspect the valve train components for wear or damage.
• Replace any worn components such as lifters, rocker arms, or camshaft if necessary.
• If the issue is internal (e.g., rod knock), the engine may require a rebuild or replacement.

4. Check and Clean Fuel System

• Tools Required: Fuel pressure gauge, fuel injector cleaner, basic hand tools.
• Check the fuel pressure to ensure it meets specifications.
• If necessary, clean the fuel injectors using a fuel injector cleaning kit or replace them if they are clogged or malfunctioning.