Skip the auto shop - Our mechanics make house calls

Q: My car has a rough idle, cuts off sometimes at a complete stop, and hesitates during acceleration

asked by on

It idle low when stopped and sometimes cut off
My car has an automatic transmission.

A: Hi - this could be a problem with the idle ...

Hi - this could be a problem with the idle control valve, either dirty or failing. Leaking fuel injectors, clogged air filter, or low fuel pressure might also cause the symptoms you have noticed.

I would recommend having a certified mechanic, such as one from YourMechanic, complete an inspection to determine why the car idle is rough and suggest any needed repairs.

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: Have to accelerate slowly or dies

Hey there. This problem of stalls on acceleration is most likely caused by the carburetor accelerator pump is not pumping fuel into the engine when the throttle is pressed. This explains the vehicle running great at steady speeds and idles...

Q: Hesitation

Hesitation is a common sign of a failing mass air flow sensor. This is a unit that monitors the air flow into the engine as it is mixed with fuel to create the optimum air/fuel ratio. When this is not...

Q: Fuel pump

Hello. From what you describe it would appear that your fuel pump may be going bad or experiencing electrical issues. If the problem appears to be getting progressively worse, until the vehicle no longer starts then it may be possible...

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...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...