Thought it was time to put her down. I was thinking something sinister like an injection pump. Pleasant $98. surprise. A faulty alarm that I hadn't used for 18 yrs. was the culprit. The service mgr at the Ford dealer said the faulty alarm had prevented fuel to flow to the injectors. Alarm removed. Truck starts instantly after "wait to start" light goes out. get some extensive rot repaired in October and hope to get 5 more years out of it. Have replaced so many things over the years I need a break