Ok, driving home tonight my car (1999 GXE) started missing. When I come to a stop it rough idles (have to put car in neutral with foot on gas to keep it from turning off). Lights are not dimming or anything like that so I don't think its the altenator. Service Engine light has been on since I bought it, but tonight it started blinking. Would do this 10-12 times and stop. I noticed it only did this when it was not in over-drive. Any clues as to what it can be??

 

What year is your car ?? 99 ??

My first guess would be your Coils. A blinking CEL means multiple misfires

-matt

 

You are correct sir.
Get the code checked to make sure though.Could be other issues that can cause that but the most common is coil packs.

 

I just talked to my friend from on here, and he suggested the same things.

 

We had the code checked at Autozone and it came back as the #4 coil that was misfireing....anyone have a clue which one this is?

 

It's a 99 Max, it must be the coil.

Don't ask me how do I know. I have a 99, too.

 

It's under the decorative cover at the front of the engine, and it's the middle one.