New to the forum stuff. But i do need some help. I’m having rough idle issues in park and in gear. No check engine light is on and the idle gets much worse when the ac system is on. I checked both vacuum lines they seem to be connected properly. Already changed maf sensor and still having same issue. Could it be bad spark plug coil packs? I replaced one. Don’t know what else to look for or do. Should i just have it towed to a dealer? I also just replaced the radiator, could i have pulled something off somewhere out the fan shroud back? Please help