Skip the auto shop - Our mechanics make house calls

Q: Car idling roughly and loudly

asked by on

My car idles roughly and loudly. It also does not accelerate fast when I push the gas pedal.

Hello. It sounds as though you have a misfire present, and the engine is not running on all four cylinders. The lack of power would also be related to this. There are many causes for a misfire: a failure in the ignition system, a failed fuel injector, or an internal engine problem. The most likely failure would be in the ignition system. I recommend getting the aid of an experienced mechanic to properly diagnose your rough idle condition, since the ignition system uses high voltage that can shock a person.

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: After smoking, car will not hold coolant.

You may have a leak in your radiator. If you poured more coolant into it and it came right back out a leak exists somewhere. If the leak is that fast, it should be obvious to the eye without having...

Q: Check engine light - O2 sensor circuit + speed sensor circuit...

Hi there. O2 sensor low voltage can be caused my a number of things. Mass air flow sensor was only one of them. It can be a bad O2 sensor, coolant temperature sensor, or wiring issue. What should be...

Q: Car turns off after driving 20 miles

Hello there, a few different parts can cause the vehicle to stall out and die like you have described. The most likely are the fuel pumps, an intermittent wiring issue, a bad battery cable, a faulty EGR, vacuum leak or...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...