Skip the auto shop - Our mechanics make house calls

Q: Sputtering problems

asked by on

I have sputtering problems an lack of power on my truck some days is worse than others it never dies but acts like it wants to sometimes i replaced plugs wires cap and rotor and fuel filter but no change i cant seem to figure out why its doing it any suggestions

My car has 210000 miles.
My car has an automatic transmission.

Hello. Engine sputtering and performance issues can be caused by many things. If you have already replaced those components then I would move on to looking at a few other things. Issues with the ignition, engine management, or fuel systems can all cause the symptoms you are experiencing. A few other ignition system components to look at would be the ignition coil and ignition module. Both of these components are vital to engine spark and can cause performance issues if they go bad. Other things that can cause similar symptoms are faults with the mass airflow sensor, fuel pump, fuel injectors, as well as a few others. The engine management system functions using a series of sensors and components to deliver the proper amount of fuel and properly timed spark, and can experience problems if there is an issue with one or more of the various components. As the possibilities vary greatly, I would recommend having a professional technician, such as one from YourMechanic, come to your location to diagnose what may be causing your sputtering](https://www.yourmechanic.com/services/engine-is-sputtering-inspection).

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Truck starts. Idles fine. I give it a little gas and it wants to stall. I give half throttle or full throttle it runs fine.

Hi there. Since you're going to clean the EGR in a few minutes, that might be where your problems are coming from; that or the throttle body being coated with carbon build-up on the inside of the throttle blades. Try...

Q: Bad muffler sound that gets better after a few miles

If the engine was sputtering and then when the exhaust starts to come off it makes the engine run better, then there is either a plugged muffler or a plugged catalytic converter. To check this, put the exhaust back together...

Q: I need a website where i can find spare parts.

There are several such sites. If you are looking for used spare parts, the enormous catalog/database at www.car-part.com is one of the better ones. Obviously, if you are looking for new spare parts, such are already vended by VIN at...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.