Here is some more info. I checked for voltage at the four pin connector at the coil pack by checking each recepticle to ground and each to each of the other recepticles in turn. None showed voltage. Yes the key was on. Then I ohmed three fuses that had to do with ignition even though they looked good from the outside. They checked OK too. So I tried to start it. It fired up on the first try, but missed and ran at 2200 RPM. AS it settled down it seemed to run OK. Then it started to pop through the intake. I shut it off and restared it. It ran ok part of the time and popped part of the time. I do not hear any vacuum leaks hissing. Unless someone has a good theory about this thing, I’ll probably tow it to a pro tomorrow. I should have mentioned that it is the 3.5L OHC V6.