I remember replacing it in my 96 ranger 2.3 that I used to have. Took me forever to find it, but its really not that hard to get to. I think there was a wiring harness or something you have to unclip to get to it. Like the other person said, its right under and behind the alternator. You probably won't be able to see it, but you can reach it with your hand. Mine didn't have AC, but if your's does then it might be harder. The PCV valve that i got at AutoZone was obviously not the right part (it was a PCV valve, but for some other engine), so i just took the old one out, did the shake test, and put it back in.