Skip the auto shop - Our mechanics make house calls

Q: My engine has a rough idle. It spits, sputters, and stalls out. Could it be a bad injector?

asked by on

Truck has rough idle,it spits and sputters and sometimes dies , also when it does this, it doesn't want to go, this only happens till it warms up then runs good could it be a bad injector

My car has 70000 miles.
My car has an automatic transmission.

Hi and thanks for contacting Your Mechanic. Yes an injector could cause an engine to spit and sputter or even stall out. Injectors over time can become dirty from the contaminate in the fuel tank that when passed the fuel filter. I recommend performing a fuel injection flush and putting a can of sea foam in the fuel tank to aid in the cleaning process. This will clean out the fuel system and clean the injectors. Then retest the situation to see if the problem continues or if the engine runs better. If you need further assistance with your vehicle, then seek out a professional, such as one from Your Mechanic, to help you with your engine spitting, sputtering, and stalling out.

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
  • Home
  • Questions
  • My engine has a rough idle. It spits, sputters, and stalls out. Could it be a bad injector?

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: Why the Fuel pump relay will not kick in using the key switch

Hello - The fuel pump power path includes the fuse, and the fuel pump relay (triggered by the ignition switch). The injectors are fired by the engine control module (PCM for Ford fans). There are 2 potentially separate issues here....

Q: Will not start back up

Hello there, many faults will cause your 1997 Chevrolet Cavalier to die and not be able to be restarted. The most common faults are with the battery, alternator, battery cable, fuel pump, fuel filter, wiring harness fault, or MAF sensor....

Q: Running lean and I can't find a vacuum leak. Sometimes vibrates at various speeds. I let off the gas and then there is a lack of power.

Hi there. For the vacuum leak, look at all of the vacuum hoses on the engine and brake booster. Check to see if the hoses are split, cracked, or unmounted. A vibration could be the engine running rough from the...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.