why is my engine idling rough?

One thing to keep in mind is that rough idling is not the problem - it is a symptom to an engine issue that has yet to be diagnosed. Your engine could be idling roughly due to a number of different reasons.

One reason for a rough idle is it could be time to clean out the fuel injectors or it could be time to change the spark plugs.


  • Exhaust Problems
  • Holes in the Air Intake Valve
  • A general loss of power in the vehicle
  • It may also occur in the winter months when vehicles have a more difficult time starting and may shake when the engine is turned over.

In order to prevent this problem from happening, you want to regularly schedule tune-ups for your vehicle. During a tune-up, the Technician reviews a number of areas within the engine to make sure that everything is working properly.

If your vehicle has already begun to experience this issue, it is recommended that you run a diagnostic check to pin point the exact cause of the rough idle. It is recommended that you bring your vehicle to an experienced and trusted mechanic to review and diagnose the problem. You can also go to an auto parts store and use a code reading device that they have available and proceed from there with repairs. A rough idle should be addressed right away as the longer this symptom occurs, the more damage could be done to your vehicle, which will ultimately be more expensive to repair.

Of course you can always bring your vehicle to our Service Center, and our experienced technicians will be happy to assist you in diagnosing and fixing any problems.