Is your car facing acceleration issues?? Unintended acceleration? Here’s the list of symptoms that signal problem with acceleration!


Is your car facing acceleration issues?? Unintended acceleration? Here’s the list of symptoms that signal problem with acceleration!-Brought to you by PartsAvatar auto body parts online.

It can be alarming as well as frustrating when your car won’t speed up when it is needed to.

There can be various potential car problems related to this sluggish motion or no motion of your car and you should be able to diagnose what is really causing the problem so that you can replace car parts that have been causing trouble.

Some problems are easy to address and are a DIY thing but still if you are a rookie or not sure then better take assistance!

The key solution to every car issue is its regular maintenance. Remember never to miss regular maintenance and inspect your car from time to time! If you are looking for replacement auto parts online then PartsAvatar can be your suitable option!

Let us see some potential car problems that might be triggering acceleration problems.

Bad spark plugs

The foremost job of car spark plugs is to ignite the fuel in the combustion chamber. They create spark that ignites the air-fuel mixture inside the combustion chamber. Spark plugs require routine maintenance and need to be replaced every 30000 miles.

Worn spark plugs will target your car’s acceleration. When the igniting material in the spark plug begins to lose its power and starts to wear out, the impact can be seen in spark plugs’ performance. This can reduce the acceleration of your car because of improper ignition or sometimes no ignition depending on the condition.

Call your trusted mechanic and replace spark plugs on his recommendation.

Faulty timing belt

Timing belt not only operates the camshaft but also causes the valves in the engine to open and close timely. Damaged timing belts can cause grave problems with car engine and you vehicle will have hard time starting up.

Misplaced timing belt’s effects can be seen in sluggish motion of your car. Make sure that your car’s timing belt has been installed properly because sometimes even after replacement problem persists which is generally the fault of improper installation.

Keep an eye on timing belt’s condition and don’t forget to visit mechanic for regular maintenance.

Stuck emergency brake

In some vehicles, the parking brake can get stuck if left engaged for a long period of time, or if subjected to overzealous application.

Poor or sluggish acceleration may be sometimes due to stuck emergency brakes. This can be driver’s fault that he forgot to disengage the brakes after engaging them which is probably why they are not letting the car to properly accelerate.

Clogged car fuel filter


Car fuel filters may seem trivial to maintain and replace but if ignored they can trigger potential car issues that can be very expensive to handle.

Dirty fuel filter will also impact car’s performance and acceleration. Fuel filter screens out the dirt and various impurities getting into fuel tank. Clogged or dirty fuel filter will definitely not give optimum performance of screening the dirt out of fuel tank hence resulting in sluggish behaviour of car.

With time metal shavings, dirt, dust and other particles would start collecting in the fuel tank and fuel won’t be able to move properly to the engine resulting in improper acceleration.

For a better performance of your car and good fuel economy, it is suggested to check and replace dirty fuel filters.

Sometimes other fuel system components may have been damaged and need replacement and they also have grave impact on car’s acceleration. Clogged supply line, malfunctioning fuel pump, bad fuel nozzle can stop your car from speeding up.

Make sure you keep an eye on these components and visit a professional for proper diagnose.

ECU problems

Bad or failing ECU will lead to potential problems like car will not start or difficult in starting it. If it fails completely, it will leave the vehicle without engine management control and will stall as a result.

It’s best to get the help of a professional technician to determine the exact cause. Sensors in the ECU should work properly because bad sensors will give incorrect input thus affecting acceleration.

Faulty oxygen sensor

The oxygen sensor sends data to vehicle’s PCM to maintain optimal air fuel ratio for your engine. Bad oxygen sensor results in rough idling of vehicle or engine misfiring. Bad oxygen sensors prevent in controlling engine timing, air fuel ration and combustion chamber.

It can result in either too much or too little fuel, which is not good for car’s performance.

Air filter issues

Air filters provide engine with a clean air to be used for air fuel mixture to be sent in combustion chamber to burn. If the air filters get dirty or clogged, inaccurate air fuel mixture will be achieved resulting in sluggish response and bad acceleration.

It is recommended to replace them every 10000 miles because they tend to get dirty easily due to environmental or road conditions.

Bad Throttle position sensors

If the throttle position sensor starts to malfunction, engine speed cannot be controlled by accelerator pedal resulting in fluctuating speed of engine without even pressing the pedal.

In modern vehicles, throttle control airflow in the engine. If the system begins to malfunction, computer will shut down the throttle opening as a precautionary measure. In this case, as a result check engine light will illuminate and vehicle may not exceed a certain speed limit.

Bottom line? Regular check and maintenance is the key. Whatever your car’s model is, you must maintain its top performance and condition by using only heavy-duty and reliable Car parts and accessories from one of the best suppliers of Car parts- Parts Avatar Auto Parts Toronto.


Leave a Reply

Your email address will not be published. Required fields are marked *

Enhanced by true google 404 wordpress plugin