why is my Honda Accord 10th Generation (2018-2022) losing oil without a leak

Solution

1. Preparation

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

2. Address PCV System

• Remove the PCV valve from its housing.
• Inspect the valve for clogs or damage; replace if necessary.
• Clean the valve housing using carburetor cleaner and a lint-free cloth.
• Reinstall the PCV valve securely.

3. Replace Spark Plugs

• Remove the ignition coils by unscrewing the bolts and gently pulling them out.
• Unscrew and remove the spark plugs.
• Inspect the spark plugs for oil fouling, indicating oil consumption.
• Replace with new spark plugs that meet OEM specifications.
• Reinstall the ignition coils and torque to the manufacturer’s specifications.

4. Perform an Oil Change

• Drain the engine oil using a drain pan by removing the oil drain plug.
• Replace the oil filter with a new one, ensuring the rubber O-ring is removed from the old filter.
• Reinstall the drain plug and torque to specifications.
• Fill the engine with the recommended oil type and quantity.

5. Compression and Leak-Down Testing (if necessary)

• Follow the manufacturer’s instructions to perform a compression test using a compression gauge.
• If results are low, perform a leak-down test by pressurizing the cylinders and monitoring air loss.
• Identify and replace any worn piston rings or valves if necessary.