Skip the auto shop - Our mechanics make house calls

Q: Rough idling, check engine light on

asked by on

I've recently bought this car and it has some problems with the engine. The engine sounds rough during idling. Also, the check engine light comes on. I've also noticed that there is a slight pulling to the right side as I drive. What do you suggest I do to improve its performance?

First have an experienced technician, like one from YourMechanic, look the vehicle over and read the fault codes from the vehicle. The trouble code may unveil a problem causing the rough idle. Otherwise make sure the maintenance has been kept up. Oil changes, spark plugs, air filters, and such. As far as the pull, have the steering and suspension components inspected for any wear before having the vehicles alignment checked and adjusted if necessary.

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!
  1. Home
  2. Questions
  3. Rough idling, check engine light on

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: Car in limp mode, check engine light on

In this case you should have an experienced technician look at the vehicle. Limp mode is usually a term used for a vehicle with an automatic transmission which stays in second gear when certain faults arises. A certified technician, like...

Q: Car independently accelerates - 2013 Porsche Panamera

Make sure to stay in touch with Porsche on this issue. It is possible the Idle Air Control valve, which "adjusts" engine idle speed, is faulty, or is receiving an incorrect signal to raise the engine RPM (say for air...

Q: EGR valve and vacuum

If you got code P0401 for the EGR system malfunction, then the system would need to be tested to see whether or not the vacuum modulator valve is holding vacuum and can control the EGR valve. These tests are needed...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.