Q: Grinding and stuttering while accelerating

asked by on

I just bought my car a couple weeks ago from my sister and brother in law. It makes a grinding noise when I accelerate as well as stutters from time to time during acceleration. My sister did mention that the vacuum lines need to be replaced after having a diagnostic done when the check engine was on. The battery was recently replaced and the check engine light is now off. But I'm hearing the sounds I mentioned above. Any idea would these could be?

My car has 211190 miles.
My car has an automatic transmission.

The grinding noise could originate in the drive train, including wheel bearings, or could even be in an accessory drive. From your description, the noise is probably distinct enough that a certified mechanic could pinpoint the origin upon inspection. If you request a vehicle noise diagnostic, the responding certified mechanic will definitely find the origin of the noise.


Inconsistent or slow acceleration has a variety of causes. Fuel injectors can become clogged over time as the tiny passages become clogged. When an injector is clogged it can degrade the performance of the vehicle and the car may accelerate slowly or feel that it does not have enough power. Other symptoms include a rough idle, a vehicle that is hard to start and a decrease in fuel efficiency. A defective fuel pump will not supply enough fuel to the injectors. This can cause the vehicle to accelerate slowly, or even sputter and stall, especially at high speeds. A clogged fuel filter can also restrict the amount of fuel that reaches the injectors. A dirty airflow sensor can cause the wrong data to be be sent to the computer. A slow accelerating car is the result of this incorrect data. It may also trigger the Check Engine Light. Other causes of poor acceleration are vacuum leaks, a defective throttle position sensor and a defective idle air control valve. To get the underlying cause of the problem pinpointed and resolved, you can request an engine diagnostic for slow acceleration and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Grinding and stuttering while accelerating

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Why does my Echo rough idles at a red light or stop sign?

Hello, What you are describing is a common sign of a dirty or faulty idle control valve. The idle air control valve is a small valve on the engine's intake system that reads the air intake as it comes into...

Q: Car shut off when driving, 2009 Toyota Camry

Has the Check Engine Light illuminated after the stall? A loose battery connection can cause abnormal problems on many vehicles. Have the battery and charging system tested for issues and check your maintenance schedule to make sure services are up...

Q: My engine light came on code shoed P0037 its a Lexus is300 is it just changing the o2 sensor?

P0037 is an oxygen sensor code referring to bank 1 sensor 2. This is the right hand side of the engine and the second sensor on that side. The code may be caused by the catalyst on that side or...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.