I drove my '91 vert yesterday and noticed that it was running fine but nothing else was working...no radio, turn signals, power windows, power top, etc. I got it home, shut it off, played with the key position, and got everything to work. I knew right away it was the notorious ignition switch. It's a popular item...the parts store had one on the shelf for $16.
Anyway, it's got two of those little ba****d anti-tamper screws...it's a torx bit with the tiny post in the middle of the torx hole. Why the h*** did Ford put those in there??
I was able to get them out with persistance and small vice-grips. I didn't have normal screws to put back in. So, while I had them out I ground four flat spots on each screw head so that I could use a 10mm wrench to tighten them. (And get them out again if I have to.) What a PITA!
The old switch was definitely bad. The plastic plug part was beginning to separate from the metal part, and the spades had burn marks around them where the plastic had gotten really hot. I'm assuming that this was never replaced in the recall years ago.
It all took less than an hour and I'm driving the car today. All's well that ends well. )
'73 Convertible, 351C 2V
'91 LX Convertible 5.0
Member: Valley Forge Mustang Club
"I may not have gone where I intended to go, but I think I have ended up where I needed to be."