ok i have a 2005 ss/sc and after i got my oil change i noticed that when i pull up to a stop that my car dose a weird idle its like the car drops rpms then shakes a little and then gose back to normal then just repeats but the rpm gauge dosen't move so i thought it was just a spark plug missing so then when i got home i just poped the hood and i heard this weird noise it sounded like my rockers so i thought they didnt put enough oil in my car so i cheeked and it was full so has anyone else had this proplem or heard of it? or is it just natural? o and when i take off i blow black smoke and i just got and oil change 600 miles ago so it should stop that but it didnt!! can anyone help me with eather of these?

 

bump... happens to me 2