if battery is okay and charging system ok, a most common on this engine MY 2004 4.4 would be a faulty ignition switch, does the coolant temp gauge ped red? this indicates a faulty PT-CAN. The ignition switch on this car wakes up PT-CAN. No DME communication will not transmit coolant temp to the Cluster, and No Crank Sensor Signal to the Transmission, which will give you Trans Failsafe.