Did you know Americans spend an average of $397.00 per year on car repairs?
Aside from your home, your car is one of your most valuable possessions. So, if you notice your engine making a knocking noise, it’s natural to be concerned. Weird noises can indicate serious engine problems and lead to costly repairs further down the line.
If you’ve noticed unusual engine sounds, don’t worry. This guide explains the top troubleshooting and fixes for engine problems. We’ll also explain when it’s time to take your car to an auto shop for pro assistance.
Read on to learn more about what causes engine knocking and how to fix it.
Insufficient Lubrication
One of the common causes of engine knocking is insufficient lubrication. When the engine lacks proper lubrication, the metal components rub against each other, resulting in a knocking sound. This issue may occur due to low oil levels or poor oil quality.
Be sure to top up your oil regularly. Only use high-quality brands from reputable retailers for the best results.
Detonation
Detonation, also known as pinging, happens when the air-fuel mixture in the combustion chamber explodes unevenly or prematurely. This can occur due to various factors such as incorrect ignition timing, hot spots in the combustion chamber, or using low-octane fuel in a high-performance engine.
If you’re experiencing excessive engine misfires, it’s a good idea to visit a reputable auto shop to find the root cause of the issue.
Worn Bearings
Worn bearings can also contribute to engine knocking. Bearings provide support and reduce friction between moving parts. Over time, they can wear out, causing the metal components to knock against each other.
By replacing the worn bearings with new, industry-spec components, you’ll eliminate friction in the engine and enjoy a smooth ride.
Loose Parts
Loose parts within the engine, such as bolts or brackets, can create a knocking noise when the engine is running. Vibrations and movement can cause these components to rattle and produce an audible sound.
Do a visual check under your hood. Check each visible bolt head and fixing, enduring that everything is soundly fastened.
Low-Quality Fuel
Using low-quality or contaminated fuel can lead to engine knocking. Poor fuel quality can result in irregular combustion, causing the engine to knock. It is essential to use high-quality fuel from reputable sources.
Low-quality fuel can also cause carbon to accumulate on the pistons, valves, and cylinder heads over time. These deposits can alter the combustion process and contribute to engine knocking.
Engine Making a Knocking Noise: What Now?
An engine making a knocking noise can be worrying, but understanding its causes and implementing the right fixes can help you address the problem effectively. Insufficient lubrication, detonation, worn bearings, loose parts, and low-quality fuel are all potential culprits behind engine knocking.
Here at Express Auto Service, we specialize in diagnosing and fixing various engine problems. Our experienced technicians are equipped with the expertise and knowledge to identify the root cause of engine knocking and provide the necessary repairs.
Don’t hesitate to contact us today for reliable and efficient car service.