Skip the auto shop - Our mechanics make house calls

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.

A: You may have a faulty throttle position sen...

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?

Need advice from certified mechanic? Get help now!

Over 1000 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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Sway bar bracket left front side

I would doubt it was done intentionally by anyone. The sway bar goes from one side to the other side of the vehicle and connects to each side lower control arms with the links. It's possible that you may have...

Q: Headlights wont turn on?

This could be as simple as a failed bulb or a failed fuse, or it could be a wiring issue. I would of course start with checking the bulb and fuse. There are either separate bulbs, or separate elements within...

Q: I can’t drive forward, what happened?

This sounds like a problem with the internal transmission seal leaking. The reason your truck worked in reverse is because it uses full transmission pump pressure and separate internal parts from the ones used for forward gears. You will need...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...