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Camshaft Knocking Noise – Causes and How to Fix It

If you’ve ever heard a camshaft knocking noise, you’re not alone. Millions of drivers worldwide suffer from this problem, so it’s important to know what the symptoms are and what to do about them. In this article, we’ll cover the causes of this common problem, how to fix it, and more. If you’ve been experiencing the annoying noise, you’ll appreciate this quick guide to fixing this common problem.


A knocking noise in an engine is usually indicative of an engine out of sync. Timing is critical for the engine to keep energy flowing into the combustion chamber, and a knocking noise is typically a symptom of a timing problem. If you’ve ever experienced knocking noises in your engine, you know how annoying it can be! Check your timing, and replace any worn parts that are causing the noise.

While some symptoms of this noise are easy to diagnose, others are more difficult to diagnose. Replace the spark plugs and oil if you notice a change. Other causes of engine knocking are more complex, and are best left to a professional. Attempting to diagnose this problem on your own can further damage the engine and cause further problems. To make the most out of your engine, learn the symptoms of camshaft knocking noises.

The first symptom of a knocking noise is a bad air/fuel mixture. If you’re using unleaded gasoline, chances are the problem is with the octane. High-performance engines require premium fuel, so make sure to use premium fuel when possible. It could prevent further damage. In the meantime, you can try changing the spark plugs and fuel octane.

A knocking noise can also be caused by a dirty lifter or a failing duel mass flywheel. Luckily, there are some easy fixes for these common noises. You can also check for a faulty position sensor and a dirty lifter to see if it’s related to the knocking noise. The following symptoms of camshaft knocking noise may be related to a malfunctioning lifter.

Besides a knocking noise, you can also experience other engine problems. If your vehicle shakes when the engine starts, or misfires when you press the accelerator, it may have a knock sensor problem. In some cases, a knock sensor may not be functioning properly, resulting in a bad air/fuel mixture and misfiring. These problems can cause costly engine repairs, so replacing the knock sensor can help you avoid costly issues.

Another common engine noise is a ticking or rattling sound that comes from the valve train. The rocker arm in the engine works to open and close valves. When the engine is spinning, the pushrod controls the rocker arm. To make this process work smoothly, the pushrod must be placed at a precise distance from the valve. If you hear a knocking noise, this is a common symptom of worn or damaged components.

If you notice a knocking noise coming from the engine, you should seek professional help right away. This noise is indicative of a worn or defective camshaft. A check engine light is the first step in determining the problem. If it appears after a few minutes, it may be due to a valvetrain problem. However, the noise might also be due to other issues, such as a low oil pressure or excessive valve lash.


There are many causes of engine knocking noise, but this article focuses on one of the most common ones. This knocking noise usually occurs when the engine is out of sync, or out of time. Keeping your timing perfect is critical to preserving energy and preventing a knocking noise. If your timing is off, it can cause other problems. Listed below are the top five reasons why your engine may be knocking.

A lack of octane in your fuel may also be the cause of the noise. A high octane fuel has more compression before it ignites, so the knocking noise is the result. However, if the knocking noise continues, you may need to consult a mechanic. In some cases, the knocking noise is caused by a bad bearing. If you suspect that a bad bearing is causing the noise, replace or adjust the bearings in your engine.

A malfunctioning timing chain may also be the cause. While timing chains and belts serve the same purpose, timing belts and chains often break. If your timing belt or chain has been knocking, the problem is more likely to be a malfunctioning component. If you notice any of these symptoms, you should get your car checked by a mechanic. Check the clearance of the bearings with a Plastigarge to determine whether they are out of alignment.

Other causes of engine knocking noise include malfunctioning lifters. Lifters pump oil up and down to transmit motion between the camshaft and the valves. If your lifters have flattened or are damaged, they will make a knocking noise when they are moving. Most often, this ticking noise is most apparent when starting the engine and may disappear after the engine has warmed up. The sound may become more noticeable during idle.

While there are a few other causes of camshaft knocking noise, a bad camshaft will generally produce a loud, constant sound. A ticking noise can also be a sign of a malfunctioning valvetrain, and it’s usually associated with worn or damaged cam lobes. While it’s difficult to pinpoint exactly where the noise originates, a simple OBD scan tool can give you a good idea of the problem.

If the noise persists, it is most likely a result of a worn out or loose connecting rod. In addition to low oil levels, this can lead to bearing failure. Ultimately, the noise could lead to a total engine rebuild. If the noise continues, your mechanic should look for other causes of engine knocking. If the noise is loud and constant, it may be time to consider a complete overhaul.

The knock sensor is another common cause of this noise. If you’re experiencing this noise at idle, you should check your engine’s timing belt and spark plugs. The knock sensor is part of the electrical system in modern cars and is responsible for adjusting the air-fuel mixture to prevent the engine from knocking. When it malfunctions, it won’t provide the engine with the data it needs to work properly.


How to Fix Camshaft Knocking Noise? If your car is making a knocking noise, the problem may be caused by a malfunctioning camshaft. A failing camshaft can cause uneven wear on the rocker arms and lifters, which results in a knocking noise. The best way to fix this problem is to replace them, which will cost a small fortune. If this is too expensive, you can try rebuilding the entire engine.

The first step is to check the valves. If the valves are not closing correctly, it can be caused by dirty lifters or a bad cam sensor. You may also hear a knocking noise when the Duel mass flywheel fails. I had a problem with this sound when I first bought my car, and replacing the CPS fixed the problem. Once I replaced the flywheel and the lifters, I didn’t experience the same knocking noise anymore.

Secondly, you need to check your engine’s timing. If the camshaft is knocking, you must check the timing of the valves and the ignition timing. A malfunctioning timing sensor will lead to uneven engine power and poor fuel delivery. Lastly, the knocking noise may be a sign of a bad VVT solenoid. A bad VVT solenoid will lead to a knocking sound in your car and inconsistent idle.

If you’ve done all the checks above and still have a knocking noise, you’ll need to check the fuel. Sometimes, it’s caused by the incorrect octane level in your fuel. Changing to premium fuel can prevent damage in the future. If the problem persists, you should take your vehicle to a mechanic for further troubleshooting. You should also change the spark plugs.

Another way to fix camshaft knocking noise is to change your oil. While oil treatment won’t solve the issue permanently, replacing the cam phaser will restore smooth riding and improved fuel mileage. This method will also lower the amount of friction. The choice is yours. If you’re in a tight budget, you can do this yourself. But make sure to wear safety gloves and use an oil collection pan. Don’t forget to change the oil filter.

If you’re unsure of what’s causing the noise, you can take your car to a mechanic and get a professional diagnosis. The noise could be coming from a bad gasket or exhaust leak. You should seek professional help to repair or replace the lifter if it is making a knocking noise. You should also check the condition of the lifters. If they’re in good condition, they will stop this annoying noise.