Q: Check engine running rough
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?
Recommended Services
| Check Engine Light is on Inspection | $94.99 - $114.99 | 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
How do you calibrate the compass in a 2012 Honda Accord?
If you have an EX-L or an EX-L V6 without the navigation system, you may need to calibrate your compass periodically. There are several reasons your compass may lose its bearings, including a dead battery, or even driving near power...
How do I use the passenger airbag status light?
The passenger airbag status light lets you know whether or not the front passenger airbag is turned on. Your vehicle will automatically detect when there is a passenger in the front passenger seat. When there is a passenger, the airbag...
AC stops working, blows warm air
Hello. Your A/C system has multiple components and sensors. It is possible that the high pressure switch is faulty (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ac-pressure-switch). It is also possible that the blend doors for the hot and cold air are sticking and unable to open...
Car makes scraping sound and rattles
Hi there, thanks for writing in about your 2001 BMW 740iL. It sounds like you have more than one problem here, and the scraping noise can be something dragging or rubbing and can only be checked and diagnosed in person....
Engine is knocking and it shakes the car while idle.
It is possible that some internal damage may have happened to the transmission due to the low fluid level. Then the transmission is not performing properly, it can affect the way that the engine runs. I would recommend having your...
When I put the car in any gear nothing happens is this the clutch or transmission
Hi there. It does sound like you have a failed clutch. However, there is the possibility that the clutch is engaged and the input shaft could be broken. I suggest having a qualified technician perform an inspection to determine what...
Flashing lights after battery reattachment
The issue is the alarm system (security) is tripped on your vehicle. Try turning the key to the 'ON' position and locking and unlocking the doors with the key fob remote, that is if your vehicle has a remote. This...
I turn my car on it runs then turns off
You will need to have the fuel pressure tested to see if the pump stopped working or the fuel you put in contaminated the system and is not good enough to fire the engine. If you have spark and fuel...
truck wont go into gear and you can move shift selector without depressing brakes
Hi Ryan. Thanks for sending us your question today. It really depends on the condition of the transmission as to what might be causing your problems If you are restoring a 1988 Suburban and have not rebuilt the trans, or...
Related articles
How to Prevent Motor Oil Sludge
Regular oil changing in your car helps prevent sludge. Motor oil sludge can cause worse gas mileage, low oil pressure, and damage to engine parts.
What Does the Ignition Switch Warning Light Mean?
The ignition switch warning light could mean there's an issue with the ignition system or the car key. It could be due to a glitch or worn out key.
What Does the Parking Assist Indicator Light Mean?
A parking assist system helps your car park when it may be tricky to do so. If the light is flashing, dirt may be blocking the sensors from working.
Browse other content
Maintenance
Services
Estimates