Yesterday after a car show, setting in the hot sun all day, was headed home, drove about 3 miles and the truck quit. Would no start, everything looked OK, had fuel and spark, but would not start. Let sit for about 20 min. then tried to start still no go, when remove the gas cap and the tank was under pressure, so I left the cap loose and let sit about 10 more min. put cap back on the it started right up drove it the rest of the way home with no more stalling. I thought the gas cap was a venting cap, new cap the box it came in said it was a vented cap. What is it suppose to be? 53 3100 235 root
