Q: Check engine running rough

asked by on August 09, 2016

My oil light came on dashboard saying my oil was low, so I added oil. Then the check engine light came on. Suddenly my car started sounding like the engine wasn't running on all cylinders. It was running extremely rough! Do you know what could have caused this? What should I do?

Check Engine Light is on Inspection $79.99 - $89.99 Get a Quote

You may have overfilled your engine with oil and the excessive oil started to foul out the engine cylinders. Have the oil level sensor checked by having a mechanic diagnose the problem and Check Engine Light to see if oil fouling was the cause. Sometimes the oil level sensor goes bad and will not register correct oil levels causing an overfill.

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

What others are asking

About engine

Hey there. This involves the often heard notion and fallacy of "perpetual motion." Yes, if you or something imparts a big enough force to a powerful enough rubber band you can actuate a piston. But due to the Law of...

No leak, still losing tons of oil

It is typical for vehicles with higher mileage to use or burn some oil due to normal wear and tear, however it is abnormal for a vehicle with twenty thousand miles on it to burn through quarts of oil between...

Gears slipping.

If your automatic transmission is slipping, either the fluid is low or you have internal transmission problems (failed front pump, faulty pressure regulator, etc.). Even checking transmission fluid can be a difficult task, so this is one best left to...

Car wont start just cranks after overheating because of no radiator cap on a 06 Toyota Camry LE.

Hi Michael. When a cylinder is losing pressure or specifically, "engine shoots water from the two middle cylinders out of the spark plug hole and radiator top hole when doing a head gasket check", that's typically an indication of a...

Engine knock and hesitation

The poor acceleration and misfiring can definitely be tied to the[clogged catalytic converter, but something had to clog the converter. In many cases, oil entering the exhaust or too rich of an air/fuel mixture can overwork the catalytic converter to...

Throttle Position Sensor

An engine not starting may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. For...

Relay for engine management doesn't work unless the magnetized plate is pushed in. Please help!

Generally speaking, there are two separate circuits inside of a relay. One circuit is, what I'll refer to for the sake of this writing, as the "supply" side, and the other is the "signal" side. The supply side has a...

I have a 06 Bmw m5 car was parked for 7 months. Started it yesterday and it's saying low engine pressure, noise from lower engine

Hi there. One of the problems with letting a car sit for extended period of time is the fact that the engine will lose a lot of it's lubrication; especially on top of the motor. When you go to start...

The front wipers doesn't work

Hello. The best thing to do is to further test the system for the voltage supply. You need to locate the component or wire that is dropping the voltage. If the motor is not receiving any power on any speed...

Related articles

Does the Viscosity of Your Oil Affect the Filter You Should Use?
Most Most people who drive a vehicle know that an engine needs oil to operate smoothly. Oil lubricates the various surfaces and components of the engine’s system to help it run as efficiently as possible. Not everyone, however, knows that...
How to Read a Motor Oil Label
Read an oil label to know the right type of oil to use in your car. Some new engines require synthetic oil, while older engines use conventional oil.
What Is the Shelf Life of Motor Oil?
If you plan on storing your oil, it's good to know how long motor oil lasts. Store your motor oil in a cool, dark place to make your oil last longer.