Why Does My Car Shake When I Accelerate? [Ultimate Guide]

Why is your car shaking when u accelerate? and What to do about it?

I hope you will agree with me when i say:

 “A shaky ride can be the biggest enemy to your mental peace“ 

If you are driving an old sedan which you have spent your life maintaining, having it accompany you through the years flawlessly. Yet one day you pull out of the driveway, hit the gas and all of a sudden you feel jitters through the car and they are only getting worse as the needle tops 60-70.

Firstly you don’t need to panic car shakes can occur on various occasions and it happens to people more frequently than we would like. There can be many significant reasons as to why your car is acting this way, maybe its the age of the car having worn out parts or maybe its just some technical fault from a car service session.

We will discuss each possible cause and their optimal solutions in detail below:

1- Bent Axle:

Your Car Axle is one the most important and sturdy part of your car. Yet its still prone to minor bends or slight disorientations. Seemingly it could be caused by nothing serious such as bumping over a pavement going over a curb or just minor fender benders.  The axle can still get pushed out of shape by these day to day while causing major car shakes and jitters. Regular driving of car on rough terrains and bumpy roads can also cause this damage overtime.

Solution :

In case of a bent axle, your best option is contact a automotive professional as this sort of damage is out of your hands to mend.

2- Tire Imbalance:

Sometimes there is some sort of imbalance in the level of your tires. Maybe you just got your treads replaced or a new tire got fixed in and somehow the level of the tires was not left balanced in the process. Car shakes due to this sort of irregularity happens mostly between 50-65 mph faster than that u might not feel em the same. It could also simply happen due to lack of air pressure in one of the tires. But when the issue is more technical the whole width of your car will not be equally impressing over the tires and on side might feel more pressure than the other and since the car cannot move the ground below it, it will shake up the passengers.

Solution :

Lucky for you this sort of issue is more cheaper to deal with. Take your car to tire specialist and it wont take too much time re adjusting the tires back to optimal level.

3- Worn Out Spark Plugs :

Spark plugs are responsible for the ignition of your car fuel as it starts. The high temperature spark which ignites the fuel is produced by an electrode present inside the plug. Over time this electrode starts to wear out resulting in weaker and irregular sparks. Consequently when you will hit your accelerator the fuel will not be ignited properly hence causing irregular acceleration and shakes. This sort of behavior will happen randomly throughout your ride.

Solution :

This sort of defect can be discovered easily and the remedy is not daunting either. You just need to get your spark plug replaced.

4- Break Calipers stuck :

Brake Calipers sticking can be a very prominent cause of car shakes and sometimes serious too. Overtime these calipers get rust and debris stuck inside causing the piston to not be able to slide smoothly. As a result your brake calipers start to stick or even stutter. Moreover this sort of stuttering will only get worse as u go faster and at some point u might start sniffing a burning smell resembling the smell of tires burning.

Solution :

There are caliper rebuild kits available in the markets but sometimes the best and safe solution is to replace the entire caliper assembly altogether.

5- Loose Wheel Nuts :

This is by far the most minor issue which could be causing your car jitters. Sometime one or two bolts on your wheel could be left loose though a lousy tire job or could loosen up after riding through rough terrains frequently. Passengers can experience slight to hard jitters depending on how loose the bolts are. There will be trembling in the steering wheel particularly.

Solution :

To check whether the nuts need to be taut you can lift one side of the car slightly by a floor jack and shake the wheel by hand hard and see if its able to wriggle. If found loose they can easily be taut by a wrench or a spanner.

6- Ragged Ball joints :

The most effective and flexible suspension systems utilize ball mounts and joints. These ball joints are responsible for the smooth compressions and shock absorption in a car. Like any other metal parts these joints can also fall to corrosion and deforming out of shape overtime. Consequently ragging up your suspension and creating noticeable shakes in your ride.

Solution :

The only solution to this problem is to get your ball joints changed from a automotive specialist. You can also get new coilovers online (Check our guide on Coilovers here) and replace them with your current shock absorption assembly. It will make your life much easier and your rides smooth.

7- Hitting something hazardous :

Car shakes can also be caused by the damage of an unfortunate run over. These unnoticed potholes or low curbs can get your vehicle in trouble. Running over them seems a minor incident but it can have detrimental consequences one of which can be your car shakes. Mostly caused by messed up wheel assembly.

Solution :

This sort of issue requires the attention of a trained tire technician.


Conclusion :

We have provided all the possible issues your vehicle might have and its up to you to find out which one is it.

 “So now with all the knowledge provided you can get working on getting your car back to those smooth sailing days”. 


Explore : Best Coilovers for daily driving, Best Tool Sets for Cars

Leave a Comment