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・Save up to 30%

Get a quote

What others are asking

Q: It's going 20 miles per hour in 3rd gear. The car was in reverse and wouldn't move but it will accelerate.

Hi there. The transmission is in limp mode to only go in 3rd gear. The reverse not working and then all of a sudden it works, but will not accelerate past 20 mph, then either the transmission is slipping or...

Q: Intermittent rough idle

This may be a result of a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

Q: Engine losses power when lights are on

Hello, thank you for writing in. There are a few different angles that we can look at this problem from. The first thing to discuss is that the battery performs very little once the vehicle is running. The battery is...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...