Why does my car sound like a lawn mower when I start it?

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.
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Why Do My car sounds like a lawn mower?

If your car sounds like a lawn mower when you hit the gas pedal, you are probably dealing with an exhaust system leak. The gas fumes produced inside the engine leak out of the exhaust system before reaching the catalytic converter and, ultimately, the tailpipe.
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Why does my car sound like a vacuum when I start it?

The issue sounds like the timing belt is put on 180 degrees off making the exhaust the open when trying to start and the intake open when trying to compression. This will cause a vacuum sucking sound as the vehicle is starting.
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Why does my car sound like a tractor when I start it?

When your smooth-running car or truck suddenly sounds like an angry tractor, chances are good that something within the exhaust system is to blame. Stevenson colorfully referred to the problem as “a sudden loud Days of Thunder sound,” referencing the Tom Cruise NASCAR-themed racing film from 1990.
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Why does my car sound louder than usual when I start it?

If there is an uneven air-fuel ration in the cylinder, combustion can occur at higher or lower rates than normal. Higher pressure in the cylinder can cause the engine to sound louder than usual or even produce a knocking sound. Not attending to this issue can lead to engine damage.
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Complaint: "Engine Sounds Like Motorcycle" - Suzuki Grand Vitara 2.7L



Why is my car making a whirring noise?

The more you accelerate, the more the whirring increases. It's time to get your car in for a checkup! There might be a number of reasons for this, including a bad water pump, low levels of power steering fluid, and a bad air conditioner compressor.
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Why does my car sound like a motorcycle?

In general, there are four main issues that could cause your vehicle to start sounding like a motorcycle: damage to the engine, exhaust system, belt, or drivetrain.
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What does a dying engine sound like?

A knocking noise coming from your bonnet is a classic sign of a dying engine. This noise could be caused by wear of damage to your engine's mechanical parts such as pistons, bearings or other moving parts.
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Why does my car sound like a sports car?

Inspect the Exhaust System

If your mild-mannered sedan or crossover is suddenly roaring like a race car, then the first things to check are the muffler and the exhaust pipes. A sound like a rattle could be caused by something as simple as a loose bracket that's making your muffler vibrate.
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Can I drive with a vacuum leak?

Driving with a vacuum leak should not be done because it causes a loss of power to your engine. This can be unsafe while driving down the road, especially if the leak increases as you are driving.
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What are the symptoms of a vacuum leak in a car?

Here are four signs that your vehicle has a vacuum leak.
  • Sporadic Idling. A vacuum leak introduces excess air into the engine, and this directly affects how your engine runs. ...
  • Engine Hesitation. Your engine trouble will not be limited to your idling if you have a leak. ...
  • Vacuum Sounds. ...
  • 4 Check Engine Warning.
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What does a vacuum leak sound like in a vehicle?

Hissing or Sucking Noises

Usually, when the leak isn't too bad, you will hear hissing noises coming from the engine. This may also sound like whining sounds or whimpering sounds. For more severe vacuum leaks, the noise is sucking or suction, much like a vacuum cleaner.
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Why does my car sound like a helicopter?

You Have a Loose Tire

The reason this can cause your car to drive louder than usual is due to the changed and uneven motion of your tires against the surface of the road. Especially if you recently had your tires changed or rotated, this could be the cause behind your car sounding like a helicopter.
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What does a failing transmission sound like?

If the sound resembles humming, buzzing, or clunking, you may be experiencing transmission failure. Bad automatic transmissions may emit humming, buzzing, or whining noises while manual transmissions have harsher “clunking” sounds.
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What does a car with low oil sound like?

When your engine oil is running low, it stops lubricating the engine components. When these parts are no longer well-oiled, they cause loud clunking, knocking, and grinding sounds. This can cause your rods to break, which will give off the knocking sound from underneath the hood of your vehicle.
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Why does my car sound like a golf cart?

A clattering type sound may be a result of improper lubrication in the valve train which could be a more serious problem and should be addressed as soon as possible.
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What sound does a car make when the engine is blown?

You'll know your motor has blown if there is a very loud noise. It can sound like a bang or a very loud knocking noise. If the engine is completely seized or you see smoke billowing out, that's also a sign that it's blown.
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What are the signs of a blown engine?

Top Signs of Engine Failure
  • Knocking noise. A knocking noise that comes from under the hood and rises and falls in speed with engine RPMs is most likely the sign of a failing engine bearing. ...
  • Increased exhaust. ...
  • Check engine light. ...
  • Decreased Performance. ...
  • Rough Idle.
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What does a blown piston sound like?

Sounds like: Continuous muffled, hollow sound. Common causes: Excessive piston-to-wall clearance, worn cylinders or inadequate oil. A continued piston slap noise indicates that the engine needs service. Still, if the sound is only heard when the engine is cold, it is probably not a serious issue.
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Why does my car sound like a Harley?

Generally, damage to the engine, exhaust pipe, or muffler can produce a motorcycle-like noise from a car. A faulty drivetrain or belt, engine misfire, or worn-out valves can also be the root cause. However, some cars come with a motorcycle noise even when they are brand new.
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Why does my car engine sound like a fan?

Worn bearings, bent or broken blades, and unbalanced rotating assemblies can cause a fan to screech, howl, or otherwise make noises it shouldn't. Fortunately, switching out a worn fan for a new one isn't a huge ordeal.
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What does a leaking exhaust sound like?

If you have a faulty exhaust manifold gasket, it will cause an exhaust leak that sounds like a hissing or tapping sound. The sound is especially loud during a cold start or when you accelerate the vehicle.
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Why is my car making a whining noise when I crank it?

If you hear a whining noise from your car's engine, it may mean much the same thing: there's a component that's worn out. If these parts break or wear down entirely, they could cause damage, so hearing a whining sound means that it's time to schedule a service appointment.
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Can low oil cause whining noise?

If you are hearing whining noises when your car is idling, you are probably either low on oil due to an oil leak or your valves are stuck and need adjusting.
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What does it sound like when your alternator is going out?

If you're hearing a grinding sound in your car, this could indicate that the alternator is going bad. The grinding sound may be caused by a worn-out bearing. Your car can also make a whining sound when the voltage regulator is sending signals to the alternator to charge more than is necessary.
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