I was driving along a couple days ago around 70mph. All of the sudden the engine just let loose. Almost as if the engine lost connection with the transmission. I "think" I was able to rev the engine up after that happened, I was busy trying to get safely to the side of the road. In any case, when I pulled over I attempted to start it several times. The starter sounded odd, not grinding or anything, but it was just cranking and cranking. I towed it home and pulled the oil filler cover off and had the engine cranked over and saw nothing moving in the top half of the engine. I'm concerned this was a timing belt issue. It's got around 165,000 miles on it. Any suggestions as to where to start? And what, exactly, am I in for if this is a timing belt issue. Thank You!