My 1991 Accord, driven by my daughter, suddenly quit running. Just like the key being turned off, with no warning, no dash lights came on, no odd noises, nothing. It will not start, but cranks normally. I had it towed home. I looked through the oil filler cap hole and saw where the camshaft sat by way of a mark on the cam casting. I cranked the engine just enough to reposition the crank, and checked the cam again. It had obviously turned. But I suppose, a few teeth could have sheared off on the belt allowing it to slip, so still not sure if the timing belt is the problem. When I turn the key on, I hear a hissing noise near the fuel injection unit, for a few seconds, and then it stops. As an aside, my daughter hit something on the freeway which dented and depressed the plastic rocker panel on the passenger side. Is there any fuel line that runs through there? What next steps can I take to determine why the car will not start (and quit so suddenly)? Thank you, - Phil