Q: Q: Starts but won't stay running

asked by on

What can I do to keep it running

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

This may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve. Any of these possibilities relate to fuel delivery issues that will disrupt the normally balanced air/fuel mixture that would otherwise allow the motor to run smoothly. I would recommend having an expert from YourMechanic cometo your location to diagnose your rough idle problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Q: Starts but won't stay running

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: There's a detached tube behind my battery but also behind another box behind the battery.

Of course, nothing should appear disconnected under the hood. The best thing to do is have it inspected and the mechanic will determine what it is and where it goes and also make sure that no required retaining clips on...

Q: Car wont start - 2009 Hyundai Sonata

Hey there. The battery and starter are key components to starting the vehicle. If the battery is weak, it can cause a slow or sluggish cranking if it is not providing enough power to the starter. Also, the starter can...

Q: Radiator fan cover???

Thanks for writing in about your 2003 Infiniti J35. This is the radiator fan shroud upper and lower. They are the same as a radiator fan cover. If you need to have a technician inspect your the noise to verify...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.