10 Reasons Why Car Shakes When Accelerating

Most cars quake when you’re pumping the gas, they move in a manner that seems they jerk up when accelerating. You don’t need to be scared yet, or maybe an indication of a defect in the car which needs a quick fix. It will become a higher cause for concern if the user doesn’t do something fast about this deficiency.

There is a clear difference between a car that shudders when accelerating and one that thumps before it stops. The two occurrences mean different things and occurred as a result of various issues. So it’s left for you to find out if the vibration is when you’re accelerating at low speed or high speed or when idle

Whichever one it is, may mean a different problem, but how do you know? Let’s see some causes that make car shakes when accelerating. 

Top 10 Reasons Car Shakes When Accelerating

Below are some of the reasons why car is shaking or vibrating when acceleration.

1. Wrecked Car Mount

Car mounts act like shock absorbers in the vehicle, which soaks up the engine quakes in a way that the passengers don’t get the impact. It connects the vehicle mechanism to the framework of the car body. Makers derived it from a very thick latex substance that reinforces the way it soaks up the shudders.

Owing to its function as the shock absorber, if there is wreckage on the vehicle mount, you notice the shakes strongly. Not only that, other components are also at risk of losing alignment and possibly damage because of the wrong positioning of the engine.

When the mount is faulty, you can experience the car shake when it’s idle, but majorly, the vibration is when the car is accelerating. All you have to do is replace the spoilt car mount with a better one, thus preventing shaking.

You should know that once you change one mount, you’ll keep changing them because it easily damages after removing the first one.

2. Broken Internal CV Joint

Broken Internal CV Joint

At the edge of every axle, you will find a CV connection, and it might be an internal or external connection. Hence, whenever a car vibrates when you hit the gas, check if the inner CV joint has broken. It’s advisable to check it up early to prevent the shakes from worsening when the vehicle is loaded.

CV joints break mainly as a result of a rupture in the connection boot, and this makes way for grime to mix with grease. Liquid could seep into the boot and spoil the lubricant that insulates the metal joints. And without this insulation, it will not function well and so needs a replacement.

3. Lopsided Wheels

Did you replace your wheels with new ones, and all of a sudden, you notice the car is shaking while accelerating? Then it might be that the wheels have lopsided, which entails that they have to bear different burdens on each of them.

When the car is in motion, all the wheels should have equal weights on them because a little unequal weight distribution will cause a vibration. You fill the shake in the steering wheel while the car is at high speed. So, as a remedy, place the vehicle on a balancing device while changing them and add tiny tire weights to equalize.

Whenever you notice car shakes while accelerating at high speed, you may want to check the balance if your wheels.

4. Slack Heave Screws

This defect is an issue that can result in more previous harm that you can imagine. When the heave screws on the tire are loose because of overuse, you notice your vehicle shake while you’re at high speed. But this is just the milder consequence of the issue.

If you do nothing about it, the heave might completely detach, and your tire will roll off while your car is in motion. You know what will happen next, don’t you? It’s better to imagine it than experience the mishaps. So to avoid this, ensure your heave screws are always stable.

Occasionally, tighten the screws with a flexible wrench or wheel iron, just to ensure your safety and prevent shaking.

5. Wedged Brake Caliper

Wedged Brake Caliper

A brake caliper with a defect will likely wedge when you hit the brake pad, and that can bring about car quakes. The quaking becomes noticeable when you hit 60-70km per hour, and even increase when you keep accelerating further. You also perceive a burnt smell from the brake pad when you get to a halt.

The smell means a wedged brake pad, so you should try to detect where the damage is coming from using the scent. Examine all the components of the braking mechanism thoroughly, including the pad nuts and piston. A little lubrication will fix the wedge if the parts are not damaged.

6.Twisted Axle

If your car was recently involved in an accident, no matter how minor, then you should examine it thoroughly. Most times, we consider it too insignificant without knowing that there is a hidden twisted axle. So quit the assumption and inspect your car.

A twisted axle can cause vibrations in a speeding car just like the shaft, and fixing a new one will not only to the shakes but also prevent future wrecks.

7. Twisted Driveshaft

Just like the axle, the driveshaft may bend in a minor accident and start causing vibrations to a moving car. So while changing the axle, check if the driveshaft is faulty, and change it too.

8. Ripped or Detached Vacuum Tube

A slightly cut vacuum tube will allow air to pass through it and may result in severe quakes and jerks. A detached tube also has a similar effect on a moving vehicle because the air pressure that sustains the motion is leaking or halved.

This problem may lead to more significant damages than just shakes. For a quick fix, examine all the tubes and ensure that there is no tear on them and that they’re rightly attached. If any was disconnected, attach them back to the right spot and replace torn tubes with more hardened silicone tubes for a long-lasting fix.

9. Grimy or Spoilt Spark Plugs

Grimy or Spoilt Spark Plugs

Spark plugs are devices that fire up the motor and can cause it to backfire if they are spoilt or dirty. This backfire can bring about shaking when driving the car and other prospective damages to the vehicle.

So if you’re wondering what might be causing a car vibration, why not check the spark plugs? If they are bad or dirty, ensure to change them.

10. Deformed Brake Revolver

A deformed brake revolver causes a dysfunction in the brake calipers and pads. This defect makes the braking system to experience unequal distribution of air pressure when you hit the brake pedal. The uneven pressure results in severe car vibrations when accelerating transmission.

Wrap Up

Vehicle vibrations cause discomfort to the passengers as well as the drivers. This is why you should take measures to see that the causes are corrected and replace faulty car parts. Ensure you regularly take your car in for an expert examination to enable them to detect any impending defect.

Pay attention to the brake system and wheels, ensure that they all have enough, and equal pressure. Most people love driving fast and wouldn’t like it if the car shakes when accelerating.