When your automobile makes a lawnmower noise when you press the gas pedal, it may indicate a problem. However, if you continue to drive in such poor condition, you may be forced to pay a costly repair bill. Otherwise, you will be injured and harmful to yourself.
But what causes your car to create a lawnmower-like sound? A variety of circumstances lead to this noise, and knowing what they are can assist you in diagnosing them right after they occur.
This article will list the reasons why your car sounds like lawn mower, how to fix this case, and discover other relevant details you need to know! Let’s get started!
Why Does My Car Sounds Like Lawn Mower?
To assist you learn more about what’s making your car lawn mower, we’ll recommend some significant factors including exhaust leak, failed wheel bearing, worn out tires, blown head gasket, old differential fluid, and engine misfire. Let’s scroll down to analyze details!
Exhaust Leak
This happens because it carries very hot chemicals, which put stress on its parts as they expand and shrink.
An exhaust leak will make a sound like lawn mower car. It frequently happens when the automobile is started or when it is accelerated.
Thus, the easiest way to discover it is to check the exhaust system physically.
Dangers Of An Exhaust Leak
When an exhaust leak occurs, harmful gases are released into the air before being adequately handled, resulting in fumes in the cabin and failed emissions checks.
Because many of these dangerous gasses and exhaust leak smell have no odor, you may not know that they spill into the passenger compartment.
The presence of dangerous gasses, such as carbon monoxide is extremely poisonous, causing asphyxia and even death.
How To Fix?
To fix this issue, start your car and move your palm over the exhaust pipe without touching it to determine whether an exhaust leak is creating the lawn mower sound.
Then you may drive your automobile to the professionals because many exhaust problems are caused by metal corrosion, which necessitates welding. In rare cases, though, you may be able to get away by changing bolt-on components or exhaust system repair.
Blown Head Gasket
The head gasket is one of the most important gaskets in your engine since it is meant to keep coolant and engine oil from leaking into the cylinders and the outside.
The engine in your automobile works in extremely hot circumstances. If this heat rises above typical levels, your engine may overheat, resulting in a burst head gasket.
Dangers Of The Blown Head Gasket
A blown head gasket generates the lawnmower sound and can harm your hearing. Furthermore, it frequently releases dangerous gasses into the interior of your car.
Your automobile is also at risk from a burst head gasket. It reduces the vehicle’s speed and may cause the engine to fail, which requires you to spend more.
How To Fix?
If this happens to you, get your car checked by a skilled mechanic. They make sure to use new gaskets that match or exceed the initial manufacturer’s requirements.
The optimal way to prevent head gasket failure in your car is to keep the engine coolant at the proper level. And, combine with the correct mixture according to the manufacturer’s recommendation.
Failed Wheel Bearing
Wheel bearings are commonly installed atop a metal tube to decrease friction during mobility. These bearings are rust-prone since they aren’t greased regularly.
That might be why your car sounds like a lawnmower.
A loud noise as the wheel turns, heavy movement when the wheel is rocked, uneven tire wear, a wobbly steering wheel, and a vehicle pulling to one side when driving are common indications of a broken wheel bearing.
Dangers Of Failed Wheel Bearing
Because of the sideway motion, a failing wheel bearing and tire noise may occur. A broken wheel bearing might also block the axle, making mobility impossible.
Traveling with one of your bearings worn out can be quite hazardous, especially if the wheel stops while you’re driving.
How To Fix?
Even if you hear lawn mower noises while driving, you must inspect each wheel separately for a faulty bearing.
Raise the automobile one tire at a time in a safe way. Slowly turn the wheel to hear any metallic, crackling, or squeaking noises.
Or you can roll each wheel individually to see whether the noise is caused by failing wheel bearings. In case the wheels produce this noise, wheel bearings must have broken and need to be replaced right away.
Worn Out Tires
Without a doubt, new tires provide a smooth and silent ride due to their ability to endure friction. On the other hand, worn-out tires make your automobile sound like a lawn mower.
Underinflated tires also make a similar noise. If your automobile begins to sound like a lawnmower, pull over and examine the tires.
Dangers Of Worn Out Tires
Many issues come with driving on worn-out or underinflated tires. There is decreased road grip, tire blowouts, brake pedal squeaking, and even accidents.
Poorly worn-out tires are considerably more risky to drive. Even in dry weather, they can’t get a good grip on the road, making steering difficult.
They might cause the automobile to slide when it comes to an immediate stop.
Hence, you have to double-check that your tires are correctly inflated. In addition, your tires should not be too old.
How To Fix?
The best way to solve this problem is to check your tire pressure once a month. Also, inspect it before traveling on a long trip or carrying a heavyweight.
Tire pressure requirements from the car manufacturer can be found on a sticker fastened to the driver’s door or along with the door jam. You may also refer to the tire pressure guidelines in your car’s owner’s handbook.
Engine Misfire
A misfire occurs when one or more cylinders fail to create power, and it can be caused by a variety of factors, including a clogged spark plug, defective oxygen sensor, blocked fuel injector.
Additionally, unburned fuels are also ignited by a spark from the following cylinder. This time, the sound is similar to that of a lawnmower.
Dangers Of An Engine Misfire
Driving with a cylinder that is operating badly is dangerous. An engine misfire while driving may force your vehicle to stop.
It may also be dangerous for yourself and others because it can lead to catastrophes.
How To Fix?
Your car sounds like a lawnmower due to engine misfire and what should you do in that case? You can check for a misfire by listening to the car’s sound. If the sound isn’t as it should be, there’s been an engine misfire.
Because misfires can have a variety of reasons, having an expert technician diagnose the problem is preferable to guessing which parts need to be changed.
Aged Differential Fluid
Another factor that makes your automobile sound like a lawnmower might be rooted from the out-of-date differential fluid. This fluid minimizes gearbox friction.
Gears can be damaged by old, cracked, or even leaking differential oil. Common problems linked with deteriorating differential oil are gear overheating, lockup, and gear breaking.
Dangers Of An Old Differential Fluid
Your automobile may be harmed by old differential fluid in a variety of ways. To begin with, it can’t reduce gear friction, resulting in excessive heat that might cause them to break.
The gears are likewise locked, bringing the automobile to a full halt. Finally, you will find it hard to maneuver your automobile on a rough route or corners.
How To Fix?
If the gears generate the noise, you should visit a professional right away.
However, when the automobile differential lubrication breaks, you won’t be able to travel very far. As such, it’s advisable to change the oil every 30,000 to 50,000 miles.
Wrapping Up
After reading our post, we bet you have certainly had enough information to answer the question, ” Why does my car sound like a lawn mower?”.
To sum up, the reasons for your car sounds like lawn mower are typical of blowing head gaskets, exhaust leaks, failing wheel bearings, engine misfire, underinflated or worn-out tires, etc.
From our post, you might have well-information about the signs of a bad engine and how to repair them.