Inspect and Maintain Engine Air Filter Integrity

Cost Savings

Checklist Tasks

• Carefully open the air filter housing to avoid breaking clips or fasteners.
• Inspect the filter for uneven discoloration indicating poor sealing or dirt bypass.
• Check for oil or moisture stains that may indicate PCV or engine issues.
• Hold filter to light to check for clogged pleats restricting airflow.
• Inspect filter gasket for cracks or flattening that allow unfiltered air entry.
• Examine the airbox for dirt to identify a compromised filter seal.
• Check for rodent nests or chewed material that can block airflow.
• Verify filter is correct size and type to prevent leaks.
• Clean airbox sealing surfaces to ensure proper fit and no dust.
• Inspect intake ducts for loose connections or cracks.
• Reinstall the filter evenly to avoid warping or pinching the gasket.
• Record inspection date and mileage for future reference.