What I thought would be a simple job of replacing the crankshaft position sensor has turned into a huge headache. I can't get the single bolt holding it to the block removed and I think it may be rounded off fairly good at this point. Anyone had this problem or have any suggestions on how I can get this bolt removed? There is much room in there but I was thinking about loosening the subframe bolts on that side to try and gain some additional room to hammer on a smaller socket. Anyone ever tried this on the CKP sensor before?