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Lexus Vibration While Accelerating – What To Do?

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Acceleration is vital for all types of cars as it makes cars move faster. However, vibration during acceleration is abnormal for all types of vehicles, including a Lexus. If your Lexus vibrates while you accelerate, here's what automobile experts advise you do. 

When a Lexus car starts vibrating while accelerating, it is usually due to the alignment, axle, mounts, or tire imbalance. A damaged motor mount most likely causes vibration during acceleration. Replacing or repairing a damaged mount can stop the vibrations. 

Any unusual vibration in your Lexus should be checked. Hang on and keep reading as we explain more reasons you experience vibrations while accelerating, plus ways you can fix it. 

Stock image of the 2015 Lexus RC 350 sports coupe in white - Lexus Vibration While Accelerating - What To Do

What Does It Mean When a Car Vibrates During Acceleration? 

A car that vibrates during acceleration will wobble forward or backward when more pressure is applied to the clutch. This is due to several reasons. You should monitor the conditions of your car when it vibrates since it might be a sign of an inner issue in its engine.  

A car might also vibrate during braking or gear application. In this case, there might be other reasons why your car is vibrating. 

Reasons Your Lexus Vibrates While Accelerating

Black Lexus LX car moving on the street

There are a few factors to determine why your Lexus vibrates while accelerating. Is your car running even with the vibration? Did you increase or decrease the RPM of your car? What other signs did you notice, immediately after you applied acceleration and vibration? All this will help you decipher why your car vibrates. 

Nevertheless. here are a few common reasons vibration occurs:

Car Mounts Are Damaged

The problem can be due to your tire, axle, CV joint, and other parts of your car mount. These parts contribute to the movement and acceleration of your car. If any of them is damaged, your Lexus will vibrate during acceleration. 

CV Joint Damage

The CV joint is attached to the end of the axle. Once it is damaged, the car starts having problems moving smoothly without vibration. If you allow water or dirt into the joint boot, it will affect the CV joint and axle. Ensure to clean the joint boot regularly or take your Lexus for maintenance to have it cleaned. 

Unbalanced Tires

If the tire is not balanced, vibration might occur during the car acceleration. Make sure the weight of the tire is balanced. This will ensure that it moves at the right speed and level. It is hazardous for a car tire to be unbalanced because it can cause problems such as accidents. 

Bent Axle

When you bump on hard surfaces, check your car for faults. Monitor the axle very well because a particular part might be bent. Hence, it won't work as it should have done typically. If your axle is old or damaged, it is recommended to have it straightened. 

Bad Spark Plug

If you have been using spark plug for a while now, the vibration of your Lexus might result from the plug not working properly anymore. The plug sends a shock to another part of the engine. If it is not working correctly when you accelerate your car, it will take time for the other part of the car to receive the impulse. Hence, vibration will occur.   

Loose Lug Nuts

If the lug nuts of your car wheel are not tightened, it might cause the tire and rim to wobble. It is essential to monitor how the wheel of your car behaves because it is unsafe to drive a car with loose log nuts. If the lug nuts become unfastened entirely, it can be dangerous. 

How Do You Fix Lexus Vibrating While Accelerating? 

closeup foot pressing brake pedal of car

If your car has been vibrating for a while, it is best to find a solution to it as soon as possible. To resolve this issue, you should meet with the required experts in the automobile field. Perhaps, you can point out the source of the problem, but you will still need their help to solve it.

Here are remedies for your car to be restored to its normal position:  

  1. If the car mount is broken, make sure you replace the broken mount with a new one.
  2. The CV joints might be damaged. So, replace the CV joints too.
  3. Make sure you fix the wheels well so that it doesn't shake or wobble while driving.
  4. The lug nuts at the end of the axle can also be appropriately tightened. 
  5. A bent axle or driveshaft should be fixed or brought back into the correct position as soon as possible before finally replacing it.
  6. Clean the spark plugs or replace them to intake the work efficiently.   

How Do You Fix a Driveshaft Vibration? 

Lexus cars have a rear-wheel drive where the wheel and the engine are connected through the driveshaft. The car might vibrate if anything should happen to the driveshaft. 

The driveshaft is the power connector between the engine and wheel. It uses the mechanics behind a torque to direct current to the wheel from the engine. Once anything happens to it, there will be a faulty power connection. 

A bad driveshaft will make your car persist in its vibration. No matter how slow or fast you drive, it will constantly vibrate. However, you can replace a lousy driveshaft. It is not suggested to repair them as they may get damaged again.

How Much Does It Cost to Fix a Driveshaft?

Transmission and transfer case with drive shafts. All wheel drive system. Car chassis with AWD driveline

Fixing a driveshaft is an old method of solving vibration issues in your car. Fixing a driveshaft costs about $300 to $1,300. This depends on the model of the car and the area in which you are fixing it. 

However, the utility of labor will still require you to pay about $100-$200, depending on your expertise. So, overall you'd be expected to fix your driveshaft with about $400 to $1,500. Even if you want to bargain the price, make sure you are buying an original driveshaft that is very compatible with your model of car. 

What Causes Transmission Vibration? 

Transmission vibration is the type of vibration that occurs when a car gear is applied and the car vibrates. Just like the vibration during acceleration, this also has its causes, some of which include:

  • Worn out engine mounts can cause the car to vibrate when the gear is applied.
  • Also, the worn-out transmission mounts would change the car's response when the gear is changed. 
  • When the steering stabilizer is not working properly, it can cause slow shock in the car. Hence the gear would not function properly, causing the vibration.
  • You start hearing a thudding sound from your car due to improper placement of the U-point. This is another sign of transmission vibration. 

What Does Transmission Vibration Feel Like? 

Transmission vibration is caused as a result of the gear not working properly. The gear will make a screeching or grinding noise when you change, after which you will now observe vibrating.

A car with suitable gear will change its course immediately after it vibrates. Also, if there is a transmission problem, the fuel will be used up faster than when it is working suitably.

How Do I Know If My Transmission Fluid Is Low? 

Brake fluid reservoir

The transmission fluid is an essential part of gear function. It makes it easier for gears to move from one side to another. The transmission fluid is the fluid that lubricates and cools the inner part of the car and engine. The color of the transmission fluid is always red or pinkish.

However, it changes color to brown or dirty red when overused in the car. There are several manufacturers of transmission fluids, so there is no exact way to determine their level in the car. However, a few of them can go about 100,000 miles. 

However, if your transmission fluid is used up faster than usual, it might be because of an axle deal failure, own transmission puncture, or torque converter problem. All the same, there are some signs you will notice once your transmission speed is becoming low; they include:

  • Shaking or vibration of the car.
  • The gear won't move properly.
  • Slow transmission.
  • Burning smell.
  • Oil drip under the car.

Once you notice your car transmission fluid is reducing, add or replace the old one.  

To Sum Up

The vibration of your car can be an indication of a malfunction in different parts of your Lexus. Take time to inspect your vehicle for any irregularities. You can fix it yourself if you have the technical expertise. But it is advised to consult a qualified auto technician. 

If you liked reading this, here are some Lexus related articles you should check out: 

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