My 96 Bronco has 84k and I am the 3rd owner, for 15 years. Never had a starting issue until a month ago. It would turn over but not start. I cycled the key 4-5 times and it would start and run fine. After sitting for more than an hour it would do the same thing. Changed the fuel filter and fuel pump, no change. Changed the ignition module and still no change. Could it be the PCM? Thanks for any suggestions.