Re: Solenoids, solenoids, and more solenoids...
It should be the same selenoid (which is actually a relay) on the 93 & 94. Ford used that same exact design for atleast 20 years. I know the Advance Auto Parts number is an "SS94". Most replacement selonoids have 4 terminals, where the originals only had 3.
Basically all of the wires go on the on large terminal that connects to the battery. Then one black wire goes on the other large terminal to the starter. Then a small wire clips on to the small terminal on top as it is mounted. If you wire the selonoid wrong, it should just blow the selonoid.
I'm going to say you have either a wiring fault in the harness, or had the selnoid wired wrong. I know I used my 91 as a referance when I did it on my 92 because the previous owner tried to rewire the starter and had it bass ackwards.
The amp light issue sounds like either the alternator is going bad or there is a short in the harness. I'd check where the smoke was comming from for melted wiring. You can also go to about any advance or autozone and have them do an alternator test while it is on the car.
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1991 Topaz GS (2.3/auto) (gone with the ex Wife; I'll miss that car)
1999 Grand Marquis GS (4.6/auto)