I have a 99 and I had my timing cover off to replace the crank seal. 200k miles and the dowel pin was at least an 1/8" into the hole, so nowhere near falling out. Just to be on the safe side, since I was in there, I took a center punch and staked around the hole in several places. Now I don't have to worry about the dowel pin falling out and it didn't cost a dime. You just need to move the metal around the hole in a few places just a small amount towards the hole. Then the opening is smaller than the dowel pin and that sucker isn't going anywhere.