Q: My car sputters, what's wrong with it?

asked by on

My car sputter a lot when in park,as if it's getting like pockets of fuel or power at a time. It also sputter when I try to accelerate to fast and the sputtering becomes very rapid, it will also a cure randomly when driving but will go away if I accelerate very easily. I've already replaced the spark plugs and cords, also the fuel filter.

My car has 150000 miles.
My car has an automatic transmission.

You may have a faulty throttle position sensor that is causing a jerk when accelerating or erratic idle. Have the computer scanned to look at codes and data from the throttle position sensor for a good closed throttle position and smooth reading all the way up to wide open throttle with engine off. If it is bad, then replace it. If it is good, then have the injectors and combustion chamber cleaned using GM approved methods. If you need help with these checks, have a certified technician, like one from YourMechanic, diagnose the engine sputter firsthand for an accurate repair.

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. My car sputters, what's wrong with it?

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: Smoking exhaust on starts

The smoke coming from your exhaust may be from three things. The normal start up moisture in the exhaust is considered normal if the smoke looks white and is not too heavy and goes away within a minute. The next...

Q: my alternator as failed twice and i think due to oil leaking into it. i had the valve cover gaskets changed and i'm still getting

Hi there. It is possible for oil to soak into electrical components of an alternator and cause it to fail prematurely. If the oil leak still exists after completing the recent valve cover gasket changed, it's possible that the source...

Q: How do I use the keyless access system to lock the car?

The keyless access system can lock the vehicle for you automatically, so that you don’t have to go through the process of locking your car. After you have turned off your vehicle, your car will figure out how many remote...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...