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.

A: Hello. It sounds as though you have a misfi...

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

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: Vehicle idling rough once warm

This might be due to a vacuum leak. Vacuum leaks are common in older vehicles because of the age of rubber lines, gaskets, etc. The vacuum leaks alter the air fuel mixture and as the engine tries to adjust it,...

Q: Loud noise when car’s running, probably the exhaust

Many of these cars have issues with rusted exhaust pipes. The pipes seem to start rusting at the weld seams and can rust through in a few years, especially if the car is located in a state that uses salt...

Q: Car died and now cranks but won't turn over.

The problem could be your fuel pump. An easy way to check would be to listen underneath the car when you turn the key on. You should hear a faint humming for approx. 3 seconds. If you cannot hear this...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
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...