Skip the auto shop - Our mechanics make house calls

Q: Engine warning light on

asked by on

My engine warning light came on a couple minutes ago. The car is vibrating more than usual even when idle. No other noticeable problems.

Car is well maintained and hasn't been in any accidents

My car has 74000 miles.
My car has an automatic transmission.

A: Your check engine light may come on for man...

Your check engine light may come on for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor, a bad catalytic converter, bad spark plugs or wires and many other reasons. Any of these types of things can cause the car to vibrate a bit due to a rough idle. Unfortunately due to the wide range of possibilities for the check engine light to come on, the best way to narrow down the scope of what may be causing this is to have the vehicle hooked up to a scanning tool to download any potential fault codes that may have registered in the computer. I would recommend having an expert from YourMechanic come to your location to take a look at your vehicle to determine what may be causing your check engine light to come on.

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: I received error code P0130. What do I do next?

For this vehicle with 4.6 or 5.4 liter engine, the code P0130 could be due to a problem with the computer program calibration. There is a technical service bulletin (TSB) number 13-3-5 dated March 6th 2013. The TSB pertains to...

Q: ENGINE OIL CONSUMPTION MORE

In order to see if your engine is consuming too much oil due to leaking piston oil control rings you need to have fresh oil change with correct oil. The drive for 1000 km and top off oil to see...

Q: I have a new battery but my car won't start

The solution will depend on the symptom you are observing as you try to start the car. I recommend a no-start diagnostic which will identify the root cause. There are a lot of possibilities but if the engine does turn...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...