Hey guys I am new to this forum and i have a quick question about my truck. It is a 1997 Ram 2500 4x4 with the 5.9L V8 witha 170,000 miles on it. And it has just started to hesitate/ knock upon acceleration or going up hills. also when i start it up and let it warm up it idles fine but than idles really rough but never stalls out and on its own goes back to idleing just fine so i am a little confused. Any help would be greatly appreciated

 

sounds the the IAC sensor needs the be checked/clened/ or replaced...