I have a 1979 LUV 4x4 with 121,000 miles on it. I recently had the fuel pump replaced and the carb rebuilt. I live in Las vegas, and this week has been super hot, around 115 to 120 degrees on the road. So while I am driving home in the afternoon, after about 20 minutes or so, my truck sputters and dies, and then it will only turn over and not start. It has done this for 2 days consecutively at roughly the same time. After sitting for 10 to 20 minutes it starts back up, and gets me the rest of the way I need to go. Then when I drive it at night and morning, it runs like a champ. Now the car is not overheating, as the temp gauge is reading as normal as usual, and there is no steam present. So now the question: Is this consistent with vapor lock? I was thinking that down near the fuel lines it is getting hotter than usual with the weather being what it is. Does anyone else have this sort of trouble in the heat? What other heat related problems could I be having besides vapor lock?
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