I think that is your cruise control cable.
DUUUUDE, don't drive it like that!!!!! Is your car still an automatic? If so, that is your Throttle Valve Cable, without that it will quickly burn up the AOD trans. If you don't have an automatic trans and went to a 5 speed you can get rid of it.
But if it is still an automatic, don't drive it, smell the trans fluid (to see if it is burnt), go down to the ford dealer and get a new TV grommet for the throttle body.
How long has it been like that?
If the fluid smells burnt, the damage is done, and the trans needs to come out and needs a rebuild.
Oh, and the new grommet is a couple of bucks, and it goes in the hole in the TB, and the cable "tit"(lack of a better word) goes into that.
Teah, smell the fluid on the dipstick, if it's not burnt, you're probably good. The TV cable tells the trans how much pressure to apply and when to shift due to the throttle position. The speedometer sounds like a gear problem, did you possibly put a lower(higher number) ring and pinion in it? Or know if it ever got a lower gear installed? Sounds like a 3.73 gear or something got put where the 2.73 factory gear was, and needs a different driven gear on the speedometer cable. It's a relatively easy swap, pull the old one off and swap on the new one.
There are several sites online that have speedometer gear calculators
Try this: http://www.sccoa.com/faq/speedgr.html
If a lower gear was put in, you will need a different driven gear to compensate for the new gear.
I had to do the same thing to my '73 Merc, the grommet and gear for my AOD swap, it ended up being about $10 for both.
Yeah, check the gears, you probably have a lower gear that needs a new speedo gear. Smell the fluid, if it's burnt it will smell like someone lit it up(kinda' like one of those "tell me this don't stink" sort of things)
Personally, I'd stick with the old cable as long as it doesn't bind or anything, I got my cable for my swap from the junkyard.
I'd personally get a gauge and set the TV just to be sure. Change the fluid out with some good fluid, do the gear if it needs it, and go for a test drive, and you should be as good as gold. Just as long as the TV didn't burn it up, but you'll be able to tell by taking a smell of the dipstick, and checking the color of the old fluid.
Red -> Dark reddish brown=good
Brown -> Black= Forkd up
Oh P.S. the cable is supposed to have a little "preload" stretch on it, to mainly get the slack out of it.
And yes, that is where it should go.
Yep, the pressure at the TV test port should be about 30 psi with the ford tv spacer tool installed, the more the better, but not over 36 psi for a non-modified car. It should be 0-5psi at idle. The higher the TV pressure, the firmer and later the shifts will be.
The best way to tell is with the 0-100 psi gauge. This will probably be a one time thing, if you don't have a gauge, if you know somebody that will let you borrow a gauge, it beats buying one, but buying a gauge is cheaper than a whole trans.
I'm not meaning to scare you by any stretch, but I've been there, I've seen quite a few of these transmissions fail because of this.
Also, if you can find the thickness of the Ford TV spacer tool, you can fab your own for cheap.
I've got one around here somewhere, I'll find it and measure it if you can't find the thickness.
A good quality DexronIII/Mercon fliud will work great. I wouldn't get the cheap stuff though. I'd say stick with a name brand you like.
most auto parts stores that carry or have a "help" section have the plastic bushing that goes on the throttle body for the cable. You can also get one from the ford dealer for a few$$. There is a updated bronze bushing that ford has or you can get it from 50resto.
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