Why is my car not accelerating?  
 

You step on your accelerator only to find that your vehicle doesn’t pick up speed as quickly as you thought it would. This problem is common, and a number of issues can cause it. It’s a good idea to have the problem corrected as soon as possible. Otherwise, you could be putting yourself in a dangerous situation if you can’t accelerate quickly enough to merge with traffic on the busy highway.

Faulty Oxygen Sensor

Your oxygen sensor should monitor the amount of emissions that are coming from your car’s exhaust system. This determines how much fuel will be needed inside the combustion chamber by looking at the fuel to air ratio. If your oxygen sensor isn’t working properly, this can cause improper fuel levels to burn off, affecting your acceleration rate.

Malfunctioning Air Flow Meter

Your airflow meter is attached to your air intake cleaner. As you have air flowing into your air intake cleaner, a meter will determine the overall mass of the air present. Your acceleration can be more sluggish if the correct information isn’t relayed to your engine control unit.

Timing Belt Problems

It doesn’t take much for a timing belt to cause a problem with acceleration rates. This belt needs to be free of any damage if you want to accelerate at an appropriate speed when you press down on your pedal.

Dirty Fuel Filter Issues

A fuel filter can become clogged with dirt and other particulates, which would prevent fuel from passing through in proper amounts. If you don’t have fuel entering the engine, you don’t have acceleration power.

Computer Problems

You don’t have to experience a physical problem to have slow acceleration rates. For example, your vehicle’s computer could be experiencing a malfunction that communicates the wrong emissions information. Your computer would limit the acceleration power that you have while driving.

Problems with Your Throttle Position Sensor

Your throttle position sensor will determine what angle your throttle valve should be open, and information will be shared with your engine. A throttle position sensor can become dirty or damaged, which would affect this process.

Reach out if you would like to schedule an appointment with our service department to determine what’s causing your slow acceleration. We’ll provide you with an inspection of the parts and potential issues that we discussed here, and we’ll get the problem fixed in a timely manner.