Q: When I try to accelerate it won't get up to speed and acts as if it's not getting enough gas. I changed my fuel filter and still nothing.

asked by on

when I press the accelerator car won't get up to speed, but getting off the accelerator it catch back up to itself, changed fuel filter, did a tune up still doing the same thing

My car has 120000 miles.
My car has an automatic transmission.

This sounds like you may be having a fuel delivery problem which us usually a result of the motor starving for fuel causing a lack of acceleration as you describe. This may be can be caused by many different things such as low fuel pressure, faulty or dirty fuel injectors, a faulty O2 sensor, a dirty or failing mass air flow sensor, a faulty or dirty idle air control valve, or a vacuum or intake leak. To eliminate the possibilities, I would recommend having an expert from YourMechanic come to your location to diagnose your poor running condition.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. When I try to accelerate it won't get up to speed and acts as if it's not getting enough gas. I changed my fuel filter and still nothing.

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: Brakes

One of the most common causes of the brake pedal going to the floor is a loss of brake fluid. Generally, this is easy to detect due to the fact that there is usually brake fluid leaking on the ground...

Q: How do you know which side to fix?

Hi there - beside eyes, ears and a stethoscope (yes, really), our mechanics are trained to understand how, and from where, sound and vibration originate when there is a problem. I recommend a [https://www.yourmechanic.com/services/grinding-noise-when-key-turns-in-ignition-inspection) performed by a mobile, professional mechanic,...

Q: Cranks but doesn't start

You have replaced lot's of things on your car. I'm not sure you replaced it all trying to fix a no start or if you replaced it all out of maintenance. When we replace this many parts at once we...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.