rough idle after engine warms??

[doc dilligaf]

Gentlemen I need some advise please. I have an 06 gt w 59k. Changed plugs about a month ago. Air filter as well and oil change. Since the plug change the car will rough idle after sitting at a red light. If I push in clutch and give it gas it goes away? It drives fine while moving. The fan is working fine. I was thinking cracked plug maybe? However it seems there would be a rough idle all the time,not just after it warms up. No fault lights are active on the dash. Thanks for any and all help in advance.

 

[07 Boss]

Hmmmm..... ever since you changed the plugs it's been idling rough. I wonder what it could be.

 

[Mikes06GT]

Sounds like a possible vacuum leak also. Check all hoses since you changes air filter also