by Mark Nixon » Thu Feb 07, 2013 9:23 am
First and always CHECK GROUNDS and battery connections.
Besides the obvious larger ground on the battery, there are other, smaller grounds, 1 by the battery, at the core support, another behind the head at the fire wall.
2nd, if I read it right, it's possible you have burned a fusible link, there's a bundle of these near the grid heater solenoid pack, which is located near the driver's side hood hinge.
They are typically the "spaghetti looking" group of wires that's not wrapped in the harness.
Check them for burnout by looking for burned spots and by pulling on the insulation, if the insulation stretches, they are burned.
Another thing that happens, with an automatic, is the linkage gets worn and won't engage the starter in park, to check for this, try to start it in neutral.
Mark.