Skip the auto shop - Our mechanics make house calls

Q: My car idles roughly and wants to die when I give it gas what could this be?

asked by on

My car will hesitate to start but when does will continuously idle roughly wants to die when I give it gas will rev up if I it at a certain point but will bog out as soon as I let go of gas but does not die I have had it floored and won't go anywhere but when the pedal is about halfway push down will start to rev up but goes in and out but will still bog out when I let go of pedal.

My car has 160000 miles.
My car has an automatic transmission.

A: With this kind of engine issue, I would ima...

With this kind of engine issue, I would imagine that your Check Engine Light is on, indicating that the built in diagnostics have logged and error and a diagnostic trouble code. It will be important to know these codes to pinpoint the exact component that is failing. It could be caused by a faulty mass airflow meter, throttle position sensor, it could also be a fuel delivery issue or timing issue. I suggest having a certified technician, like one from YourMechanic, determine the exact cause of your rough idle concern.

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: When I start the car and put it on drive it turns off

This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear or engaging the brakes). The Manifold Absolute Pressure (MAP) sensor senses engine load...

Q: Jdm bg5 ej20 twin turbo boost issues

Oil in the intercooler is generally a sign that a turbo seal has let go. Most likely one or both turbos are due for replacement or rebuild. Have a professional come look into the Check Engine Light code and smoke...

Q: Car won't crank and light in cluster stay on when key is turned

Hello, thank you for writing in. The vehicle is likely having an issue with the battery or the starter. When dealing with a no-start, these are the first components to check. If the battery is dead, you may be able...

Related articles

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...
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...
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...