What Causes Your Vehicle’s Engine to Make Noise?

By Product Expert | Posted in Service and Repair, Tips and Info on Tuesday, November 21st, 2023 at 1:21 am
Check engine light

Learn about Noisy Engine and Its Causes

Have you ever wondered about the mysterious hums, rattles, and clicks emanating from your vehicle’s engine bay? Your car’s engine, often the heart of your daily commute, can occasionally produce a symphony of sounds that may raise eyebrows. Understanding the sources of these noises can be crucial to maintaining your vehicle’s health. Let’s delve into the reasons behind the noise under your hood in this blog by our team at Eric Von Schledorn Auto Group in Milwaukee, WI.


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1. Worn Belts and Pulleys: One common culprit for engine noise is worn-out belts and pulleys. Over time, these components can develop cracks or become misaligned, leading to squeaks or chirps. Regular inspection and timely replacement can prevent these issues and ensure smooth operation.

2. Exhaust System Woes: The exhaust system, responsible for channeling and filtering out harmful gases, can also contribute to engine noise. Loose or damaged components, such as a faulty muffler or exhaust pipe, may produce unusual sounds. Keeping the exhaust system well-maintained is key to a quieter ride.

Technician checking an engine
Engine of a vehicle

3. Misfiring Spark Plugs: A rhythmic tapping or knocking sound might indicate an issue with your spark plugs. Misfires can occur when the spark plug doesn’t ignite the air-fuel mixture properly. Regularly checking and replacing spark plugs can prevent this problem and improve engine performance.

4. Low Oil Levels: Engine components require proper lubrication to function smoothly. If your engine is making a ticking or clattering noise, it could be a sign of low oil levels or poor oil circulation. Regular oil changes are essential to keep the engine well-lubricated and minimize friction.

5. Timing Chain or Belt Issues: The timing chain or belt synchronizes the engine’s internal components. A rattling noise may indicate a problem with these crucial components. Timely inspection and replacement can prevent more severe engine damage.


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Schedule Service in Milwaukee, WI!

Understanding these potential sources of engine noise can empower you to address issues promptly, preserving your vehicle’s health and ensuring a quieter, more enjoyable ride. If you stay in Milwaukee, WI, schedule service with us at Eric Von Schledorn Auto Group.

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