I have a 85 Bronco II, 2.8L engine. Some time back, the ignition started cutting out when I'd hit a sharp bump. It picks back up immediately. At the same time that this started, my milage also went to hell in a handbasket. I've traced wires, checked timing, checked spark plug wires, ignition coil, etc. If anyone has any ideas as to how to correct this problem, I'd greatly appreciate that input. I'm at a loss.