The truck starts and runs fine, does not appear to be overheating. Just got through running it for about 10 miles, put fuel in it and then it sputters and dies. Cranked and cranked, and it will sputter a bit, but will not continue to run. Chem tool sprayed into the port, and it will not continue to run. Just replaced fuel pump, and filter. That did not fix the problem, when it sits overnight, it will start up again the next morning without any problem, seems like it gets to operational temp, and then it dies and does not want to start back up. Anyone with any clues?