Skip the auto shop - Our mechanics make house calls

Q: Car not idling

asked by on

My car does not idle after being started.

A: The fuel pump could be the source of your c...

The fuel pump could be the source of your concern. If the fuel pump is weak or failing it won’t be able to provide enough fuel at idle and the vehicle will die unless more gas is added by feathering the gas pedal. The vehicle may run while driving because at a higher rpm the fuel pump can put out enough fuel, as where at idle the fuel flow isn’t enough. A proper diagnostic should be carried out by a qualified technician in order to find the true cause of your concern, and replace your fuel pump if needed.

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: I'm having noises coming from the undercarriage when I drive

Hi there. The noise sounds like the transmission has a mechanical low/reverse clutch that is going out. This is determined by the noise going away when shifting or on its own and a ball joint will make a noise but...

Q: Okay so basically my car shakes and vibrates a lot while idle or at a stop light. And then when I go above 65 rides rough

The rough idle may be caused by a variety of things, but this happens most commonly when the mass air flow sensor or the idle air control module have failed. The mass air flow sensor is responsible for monitoring the...

Q: Everything works but brake light

Hi there. The complete circuit is powered from the stop lamp fuse in the instrument panel fuse block going to the brake light switch above brake pedal. When the brake is pressed, power comes out of the switch and then...

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 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.