Hey guys I have a little issue with my 2.2, I know these aren't the norm around here being mainly a 4X4 forum. But I was changing my spark plugs last night(trying to get rid of the putt putt during idle) I couldn't get the last number 4 spark plug to loosen! I wasn't going to bear down on it to loosen it cause I surely didn't want to mess up the head. I have never messed with an aluminum head. I have changed many spark plugs but in they were in cast heads and have never been this hard to turn. My question is this normal and is there a possibility of messing something up by loosening it? I know you can strip stuff by tightening too tight but I'm not sure about loosening. So now i have 3 new plugs and one old one in the truck has 73K miles on it. I replaced the air filter and fuel filter trying to get rid of this putt putt. And just for the record it still putt putts during idle after replacing 3 of the plugs. It didn't develope this until I ran it on a hill almost out of gas. I'm a big dummy I didn't even think about it almost being empty when I was doing it. I have also ran tanks of gas with fuel injection cleaner in them through it. What do ya'll think?? <img src="/forums/images/graemlins/confused.gif" alt="" />