Skip the auto shop - Our mechanics make house calls

Q: Car has rough idling, occasionally seems it would stall

asked by on

My car has around 170,000 miles on it. After I had some bigger repairs done on the car at the dealership, some issues started happening. The car started running differently. For instance, it would occasionally idle as it would stall, especially when stopped at the traffic light. I went to the dealer again for this issue, but they couldn't solve it. There were no error codes. They had the fuel injectors checked. They are in good condition according to them. I tried putting fuel injector and fuel line cleaner and when the latter is in the gas tank, there are no issues. I was suggested to have all the fuel injcetors replaced. Could you give me some advice as I am not sure I want to spend that kind of money if it's not neccesary?

A: Hello. Replacing the fuel injectors will no...

Hello. Replacing the fuel injectors will not cause this. If it only stalls at idle, I would clean the throttle body first. If it is dirty, then this will occur. If it is fine, then it may be an air flow sensor or possibly a crank sensor. Both are common failures on this vehicle. I usually use a scan tool to monitor these sensors when the engine stalls to see what changes. If you need to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your rough idling problem and determine what actions should be taken.

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: Car is misfiring on cylinder 4, 5, and 6.

Check the harness to the fuel injectors to the cylinders 4, 5, and 6. There could be a loose connection or the injectors could have failed. Put a noid light on each injector and see if there is power to...

Q: Car dying without warning

Hi. There could be several possibilities that are causing your problems. A faulty fuel pump relay that is heating up would disable the fuel pump and therefore starve the engine of fuel. A fuel pressure test, during steady cruise, will...

Q: The car idles up and down. Replaced throttle body temperature sensor, mass airflow sensor, and oxygen sensor.

Hello. If you have taken all those steps and the idle is still not at the correct speed, then the next thing I would look at is the idle air control valve. The idle air control valve is the component...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...