I am new to this site and my 95 Altima broke down. My fiancee was driving and said it stopped and she started it again and then it stopped, then it would turn over but not catch. I had one mechanic look at it and he thinks the timing jumped and bent the valves. He could not touch it and said to bring it to the Nissan dealer. I dropped it off at another mechanic. The car has over 130K. Has anyone experienced this? I don't know anything about valves or how much they cost. No one can tell me at this point.