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Why Is Your Car Engine Louder Than Normal?

Often, when a problem expands in your car, some noticeable signs will narrate us towards the problem. These can be experienced in the form of sound they make, looking over the engine bay, or even smells they create. These signals alert us to the expanding problem and solve it before anything develops more significant and costly issues. So, what if your car engine louder than normal? What does this mean? This article will guide you on what might be wrong with your car and where the issue exists.

What Causes A Noisy Engine?

Troubleshooting and diagnosing the cause of a loud engine will correctly give you the potential information to make an optimum decision on how to solve the problem. By doing so, you’ll prevent further damage, keep your car safe, and make sure you will get cleared during an inspection. So, to answer your question, “Do your car engine louder than normal?” we will look for the possible problems.

Problems Causing Your Car Engine Louder:

Here are the major problems that make your car engine sound louder than normal.

1. Worn Engine Bearings:

When the engine bearings begin to wear out, they will make it loud and clear. It sounds like constantly knocking under the hood, which sounds irritating. This is an important problem because if the engine bearings get creepy, the engine is likely to seize up.

¬†While it’s not inexpensive or easy fixing, take your car to a professional mechanic to analyse this issue and get your bearings solved before it gets expensive engine failure.

2. Cranky Muffler:

The first thing you should check for is any problem with a muffler. Car enthusiasts nowadays go for after-market exhaust parts and mufflers to make your car engine louder than normal.

A worn-out or damaged muffler will make your car run louder than usual, although the sound won’t be coming, especially from the engine. Any hole or crack in the muffler can be a potential problem.

Besides the louder volume, other possible side effects of muffler trouble could be poorer gas mileage and increased fumes. It is a comparatively minor issue compared to the other problems below. Take care and keep your car in good shape and improve your mileage and be attractive.

3. Engine Needs Oil:

Engine oil is like blood to machines, which reduces friction and transfer heat between parts. Lack of this lubricant will cause a sound like rubbing or grinding. You will also get a low oil or overheat indication in the console where engines speak through lights.

Never ignore the indicator lights in the console. One of the tricky parts is the sensor malfunction which will get you confused.

For an older vehicle, you need to keep looking on the dipstick for oil level yourself. Simply topping up or changing the oil is not complicated, but in the case of a suspected oil leak, your car needs a replacement to avoid damage to its engine.

4. Worn Torque Converter:

Cars with automatic transmission have a torque converter. A torque converter is used to transfer rotating power to other segments. The failure of the torque converter will be on the loss of transmission fluid. This creates grinding noises when the car is in gear.

Damage or wear to the needle bearings is likely causing this sound. When you hear loud sounds when the car is in gear like this, get the car to a professional mechanic right away, or you could end up with more significant transmission problems.

5. Broken Tail Pipe:

The tailpipe is the exit part of the exhaust system that comes off the muffler, and the fumes exit into the air. A rusted tailpipe with holes or will entirely fall off at some point. This will increase your car engine louder than normal.

6. Malfunctioning Oxygen Sensors:

The function of the oxygen sensors is to measure the richness of oxygen in the exhaust gases when they exit the combustion chamber. The computer uses this information to adjust the amount of air-fuel mixture that needs to be injected into the engine.

A dirty or corrupted sensor can send incorrect data, resulting in excess or little fuel going to the engine. This can result in an unconscious behaviour of a machine that is louder than normal.

What To Do If My Car Engine Louder Than Normal?

Here are the possible solutions for louder engine noise.

1. For Worn Engine Bearing?

The only possible solution for a Worn engine bearing is a replacement. You’re left with no other options, and it’s an expensive process.

2. For Worn Torque Converter?

Wearing of the torque converter is caused either due to Rough driving or loss of lubricant. Broken gear parts and excess heat will make your engine louder than normal. Take your car to a professional mechanic to get rid of this problem.

3. For Cranky Muffler?

The exhaust system has seals and gaskets, and if they are failing, it can cause the engine to run louder and sputter at times. Broken tailpipe and cranky muffler come under the same category with problems caused by rust, holes, loosen nuts. To solve this, tighten the bolts or replace the system.

4. What Is Malfunctioning Oxygen Sensor?

Sensor breakdown happens due to dirt fillers, voltage break, circuit burst. Once the sensors are gone, replacing is the solution. A mechanic will inspect your vehicle’s exhaust manifold, oxygen sensors, catalytic converter, and other parts of your car to determine the origin of the loud running engine.¬†


A Broken exhaust system will not only make a vehicle louder, but it can also make it dangerous to drive. Minor exhaust problems like a failing gasket can lead to a more expensive repair like a cracked exhaust manifold or clogged catalytic converter.

Regular maintenance of your vehicle will reduce the probability of a breakdown and relieves you from other annoying problem during your peaceful journey.

Solution for car engine louder than normal are provided above, hope you solve it. Hold on to the grip of the road and never lose traction to drive safely.