Skip the auto shop - Our mechanics make house calls

Q: Sputtering/not starting when hot?

asked by on

Replaced already: distributor cap, spark plugs,vacuum hoses, air cleaner, fuel pump, spark plug wires, had an oil change.

The truck idles and runs rough. If you aren'tgently pressing the gas peddle it will sputter and struggle to accellerate. Sometimes it feels as if it will stall. It revs high when starting and if you try and start it while it is at normal running temperature it will turn over as if it's going to start but it will not start at all. The starting issue is constant. The sputtering and struggling varies day to day. Sometimes it runs great sometimes it's a pain.

My car has 250000 miles.
My car has an automatic transmission.

Hi there:

Usually when a vehicle is sputtering and hard to start and accelerate; it’s typically an indication of either a vacuum leak, air fuel ratio issues or an obstruction in the fuel flow. Believe it or not, most of the time, it’s simply the throttle body or fuel injectors that are clogged with excess carbon build-up that can cause this issue. Before you replace any more parts, I’d recommend to clean your throttle body and fuel injectors first to see if that clears up the issue. If not, check your EGR valve as this can also cause the sputtering issues you’re experiencing on your Nissan.

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

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: where is my blower motor or blower resistor?

The blower motor and blower resistor is located in the right side of the dash under and behind the glove box.

Q: will not shut off

Hello. The vehicle is continuing to run because the power supply to the engine has not been cut off by the alternator. Unplugging the alternator should cut off power to the engine if it is causing the problem. If unplugging...

Q: 93 Nissan will start but have to stay on gas to keep running

Hi there. In most cases, what you are describing is caused by an over rich situation (meaning the engine is getting too much fuel and not enough air). This can be caused by a damaged mass air flow sensor, O2...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...