My husband's E-150 van has had a miss and rough idle for several months. We finally resolved it by replacing most of the ignition parts... ie: wires, spark plugs, distributor cap, rotor, secondary ignition wires, coil and battery. Now the rough idle and miss are gone, but after driving it for approximately 45min to 1hour, it looses power and dies. When it dies, the dash guages (oil pressure) needles flutter and all turns off. Sometimes it does not die completely, but when you step on the gas pedal, nothing happens at all, or it starts to rumble hard and die.
Also fixed a minor leak in the gas tank seams, replaced the gas vent line and overhead valves. Along with a new muffler/tailpipe and tested the catalytic convertor, which tested fine.
Any ideas on what might be the cause of it dying?
And yes, I am starting to have a deep seated resentment towards american automobiles, of any brand or model.