I have an 07 f150 4.6 and just installed a k&n cai. There now seems to be a vibration every now and then and only at idle. It runs fine but the vibration is noticeable. Anyone have any ideas what the vibration is? It almost feels like timing or something but the truck runs fine. I dont have any codes or anything but would like it to go away. I have a gryphon but took it off to see if thatbstopped the vibration....it didnt. Any ideas would help

 

It may a slight miss due to the oil in that filter contaminating your maf. Pop it out and clean it with some maf cleaner.

 

Thanks for the reply! Forgive my ignorance but what is maf cleaner? Is it a special cleaner? Or just like carb cleaner? While it is off should i use the same cleaner to clean the throttle body?

 

NO Don't use carb and Choke cleaner on it.

Its sold at orileys, autozone, ect. It is just a cleaning fluid. I wouldn't worry about the TB now.