I just took my car to the dealership today since my CEL light was on. They hooked it up on the computer and called me afterwards to tell me that I had multiple engine misfires.

Can anyone explain to me exactly what this means? They're keeping my car at least until Monday to see exactly what is wrong with it.

It's a 2006 Cobalt SS with around 57,xxx kms on it. I bought it less than 3 months ago.

Thank you

 

your car is misfiring on more than one cylinder. code is probably a p0300. basically something is causing the car to misfire or not properly light and burn the air fuel mixture in one or more cylinder at a given time. problem is, there are several things that can contribute to this. the basics are air, fuel or spark. common issues are dirty injectors, worn/damaged or faulty spark plugs, etc. could be a bunch of other things as well, but they will run through likely causes, and hopefully find your issue rather easily.