Will your truck run rough if your coil pack is loose?

Will your truck run rough if your coil pack is loose?
Technically it will not cause the truck to run rough. Depending on what year the truck is. If its a 2000 or higher then it might have to be secure. But If your truck is running rough, it's either going to be spark plugs and wires, cap or rotor, coil pack, or fuel filter. I have just had this problem with my 1990 Chevy truck. The coil pack was loose, but that wasn't causing the problem. It was because the coil pack was bad. If you are having these problems check the minor things first. Mostly something electrical will be causing this problem.