[apohn]

>I can't believe I didn't think of it, but... I didn't realize that older throttles could get stuck.

I had a 1991 Taurus SHO (manual) that did this. I'm pretty sure it wasn't the throttle assembly, but the cable would bind somewhere and it would keep the throttle open. I could never figure out where it was binding and neither could any mechanics.

I usually had to pull over to turn the car off and back on again.

The SHO accelerated very fast (at the time) so thankfully it never happened when I was facing a wall.

[Infernal]

Just here to say that my first car was a '91 SHO, champagne/gold with the fiberglass "Power Bulge" hood. Loved that car.