Also check to be sure the radiator isn't moving around. When I first bought my 99' used back in 2001 I noticed the top of the radiator could be moved a little front to back by hand. With the VX's bumpy ride and a loose radiator, I assume this could cause a crack along the way some where or possibly loosen a clamp. I simply tightend it up a bit at that time and never had a problem with it.