Hello,on the way home from work today the truck started vibrating bad,an the check engine lite came on,so i let up on the gas for a few seconds then feathered the pedal then gave it more gas an it went away.Since i have an edge i was able to read the code going down the road an it said(error coil g primary/secondary circuit).Does anybody know what that means,which coil is coil g.

thanks shadow

 

Depending on the miles the truck has on it you might need a tune up. As for the G, It might be #7 cylinder. It is on the left side as you are sitting in your truck. Or the drivers side. This would be the third plug back. It also might be a cop going bad too.