So I was going up mountain loop highway in Washington today in my 79 pickup and I started to here a clicking noise while my truck was in gear and I was accelerating but I just ignored it since my truck makes a bunch of weird noises anyways. But when my friend and I got to the top of a trial we found, my truck just died and I got a weird buzzing noise that I'd never heard before. The engine ran fine before, and it goes into gear just fine, it just won't fire. It was running fine the whole time going up there. Does anyone know what might be wrong? Should I just wait it out and see if it will start back up? The engine and transmission are out of an 81 pickup (22r and 5-speed).