165,000 wont start sometimes after driving it. sits 4-5 hours, it will start

Have a 97 nissan that does the same thing. Replaced starter 2batteries 4 altenaters v belts 3 times. Did not fix the problem. Mine is a straight shift. Solution: up under the clutch is a magic little button. Push it in instead of clutch. Truck starts right up. Eventually i may glue something to clutch to hit this button but not really worried about it now. I REALLY REALLY HATE THIS CRAPPY TRUCK. But its a free fix and its running.