Kia Sorento Makes Noise When Accelerating (Fixed)

Hearing noise while you accelerate your Kia Sorento on the highway is not only irritating but also dangerous. This noise indicates an underlying issue with your automobile, which needs to be solved for your safety and ease of driving. 

You may hear different types of noise depending on the Kia Sorento model you are using but this noise means something isn’t right with your car. The most effective and easiest way to fix accelerating noise issues is to replenish engine oil and tighten loosely fitted spark plugs.

In this article, we will help you better comprehend why your vehicle makes such groans and moans noise when you accelerate. 

Now let’s check up on some potential reasons why the noise occurs while you accelerate your vehicle and proven methods to effectively solve this problem. 

Kia Sorento Noise When Accelerating

Some Possible Sounds You May Hear When Accelerating Your Vehicle 

Roaring Noise in the Course of Accelerating Your Vehicle.

The roaring noise that intensifies in the course of accelerating the vehicle might come from beneath the driver’s seat. It can be caused by faulty venting of the engine’s exhaust which makes the engine noisy. 

Loud Noise When You Accelerate Your Automobile 

Your Kia Sorento may make a loud noise in the course of accelerating the vehicle. Due to a blow on your exhaust and the gas leaks out somewhere before it reaches the tailpipe. 

Also Read:

Nissan Murano makes a clicking noise and won’t start

Grinding Noise When Accelerating Your Kia Sorento  

This happens when you accelerate the vehicle. The harder you push the accelerator the more it produces a grinding noise. 

Potential Causes of Kia  Sorento Noise When Accelerating 

If you have heard any of these noises from your car and didn’t know what caused them…here are some answers. 

Transmission Problems

The transmission can make different sounds, which in most cases indicates it’s going out. The grinding noise from an automatic transmission points that the planetary gear systems are worn out. But when you hear a grinding noise from it while you [accelerate then is already late, the issue is serious. This happens when the wheel speed is not in alignment with the engine. 

Poor Wheel Bearing 

The wheel bearing forms part of the wheel assembly which attaches the wheel to the axle. It is a group of steel balls around the metal ring.

These allow the wheels to spin freely without causing too much friction. In case one of the wheel bearings gets worn or damaged, you may experience poor steering and handling.

Another signal is that you will hear a grinding noise when accelerating or turning. Neglecting a bad wheel bearing can result in it locking up completely which will put you, your passengers, and in the lives of those around you in danger. Moreover, it can lead to further damage to your transmission, wheel hubs, and cv joints. 

Bad CV Joints 

The constant-velocity joints(CV joints)  is the part that connects the transmission to the wheel. The CV joints are normally used on front-wheel-drive automobiles.

If your vehicle makes noise in the course of accelerating at a low speed or that of a tight turn. In most instances you may hear a clicking, grinding, or knocking sound.

This indicates the CV joints are probably failing. Neglecting this can lead to your vehicle not being able to shift out of the park. Neglecting this red flag can make you lose control of your car completely. 

Valve Train Problems 

When your vehicle makes a rattling noise that sounds like a  glass bottle clinking together then there is a problem with the valve train. The valve train is responsible for the operation of intake and exhaust valves.

When any of these valves are worn out with the hydraulic lifters inclusive. It can result in untimely ignition of the inner combustion chambers.

Wear Out of the Exhaust Components 

There are various components inside the exhaust system that can make a rattling noise when accelerating.  

Here are some  components that can the rattling noise:

  • A loose or broken pipe connection. 
  • Rusty mufflers
  • A blasted exhaust gasket  
  • Failure of the catalytic converter 
  • A broken exhaust hanger 
  • A defective exhaust 

Neglecting any of these red flags can negatively affect other components of your vehicle’s systems. In addition, it can decrease the overall performance of your vehicle. 

Low Engine Oil Pressure 

One of the essential responsibilities of a vehicle owner is to always ensure the availability of sufficient oil to lubricate all moving parts of the engine. low engine oil can be detrimental to your vehicle’s engine.

When the metal parts hit each other with considerable fiction, it can cause irreparable damage to your vehicle. The metal parts produce a ticking sound when they hit each other.

The sound can be heard when the vehicle is stationary but it intensifies when accelerating as the engine parts move quicker.

Leakage of the Exhaust 

When the fuel is burnt it has to be expelled from the vehicle in a controlled way. But if there is a leakage in the exhaust manifold it can produce a ticking sound.

A leak can come about from any part of the exhaust system. A leakage in the exhaust manifold can induce noise from the engine compartment. 

Defective Spark Plugs 

If the spark plugs do not work properly due to the misalignment of the valve it can cause the engine to misfire. If you have changed your spark plugs and still hear a ticking noise when accelerating your vehicle, then it means the spark plugs were not installed properly.

In any case, the spark is required to seal each respective cylinder. But when the spark plugs have loosely fitted the combustion and exhaust gas can go around the seal, hence causing the ticking noise. 

Using Tires with Large Tread Blocks

It’s possible that all the noise you hear while accelerating your vehicle may not be a result of a defect. It can be a result of the type of tire you are using. Particularly when you hear the noise after installing new tires on the rims.

In most instances, tires with larger tread blocks are best known to be noisy on the main road. The off-road and winter tire is usually noisy at high speed due to plenty of air that passes through the high-pressure tread patterns.

Almost all-terrain tires also make noise that you can detect from the automobile’s cabin. 

Irregular Tire Wear

An irregular worn-out tire can cause a humming noise in your Kia Sorento. Tire scallop is another form of irregular tire wear which know to cause a humming noise when accelerating the vehicle.

The tire scallop normally forms around the treading signaling an out-of-balance wheel. This sign is often taken as an indication that calls for the replacement of worn-out shock absorbers.

The common causes of irregular tire wear are unbalanced and wrong wheel alignment. It can also be a result of overinflated or underinflated tires.

A Broken Heat Shield 

The heat shield is a safety device that surrounds the different parts of your vehicle exhaust system. It protects the car from the heat it put out. The heat shield is located closer to the ground around the gas tanks, mufflers, and exhaust piping, due to this they are most of the time exposed to moisture and debris. Because of this they probably develop rust in no time.

They can cause the vehicle to make a rattling noise during the course acceleration. The reason for this noise while accelerating is that so much strain is put on the engine. The harder the heat shield works the more air flows through the exhaust. 

How to Fix Kia Sorento Accelerating Noise Issues

Tighten or Replace Loose Plugs 

If your plugs are found to be bad, then a simple replacement will get you up and going. But in some instances, the only issues might be the plugs being loosely fitted.

In this case, you just need to tighten them. If you find out that the spark plugs have damaged the cylinder head thread then it has to be replaced or repaired. 

Adjust the Valve Train 

In most cases, a valve train issue happens when it’s out of alignment. You can easily adjust the valve train if you have the requisite tools and patience. 

Patch Up the Exhaust Leak 

The leaking area can be traced and easily patched up by a mechanic. But if it is ruled out that the leak is from the exhaust manifold gasket. Then it can be replaced at a moderate cost.

Ensure Constant Availability of Engine Oil

As a car owner, always ensure you fill the engine supply with engine oil. If you refill the oil, inspect to see if there are no leaks that may deplete the oil faster than normal. Always make sure to replace the oil filter every time you change oil, as low oil pressure can be due to the clogging of the oil filter. 

Replace a  Defective Bearing with a New One

It is better to change the second bearing in the same axle even though there might be one defective wheel bearing in your Kia Sorento. It is possible that both wheel bearings may be subjected to the same stress and the failure second bearing is close at hand. Replacing both wheel bearings at the same will save money and time.

Fix Your CV Joints at Home

You can easily fix CV joints if you have the time, patience, and more grease in your elbow. If you are well-off with using the jack, power tools and jack stands you can simply replace the  CV axle  joints at a  reasonable price

Final Thoughts

There are many reasons why a Kia Sorento makes when you’re accelerating, but the various noise correlates to different problems. It is better to pay heed to these noises before they escalate to something big. You can fix the issue if you can but you can also visit a workshop for a quick fix from a professional mechanic. Most of these issues come about due to a lack of proper maintenance. So it’s advisable to service your vehicle regularly. 



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