My 1994 F150 V8 4x4, is currently having a problem. It will start and idle fine in neutral and park but once you shift into gear it dies. We put in a re-built tranny 2months ago, because the main seal/gasket blew in the old one. We drove it 3 hours, and then this problem happened. If you step on the gas as you shift, it will drive, but at stop lights you have to have your foot on the gas and brake at the same time. We pulled a code wich pointed towards a bad throttle position sensor. So we replaced that part, but the same problem is still occurring. Does anyone have any suggestions????