Engine Help me figure out what this is?

limp · Jan 25, 2022

This "valve" or "Solenoid" sits on the drivers side fender well next to the master brake cylinder.... It has electric and vacuum going to it, although the vacuum line was NOT there when I started on this car, so this is a guess...
83 GLX, 4 speed manual, 5 liter......
What the heck is it?? I am assuming its part of the nightmare vacuum/electric pollution control system on this car that is going on a garage shelf, but I just don't know.. I have not traced the electrical yet, so I cannot say where the two black wires go and I have spent too much time trying to unhook the electrical connector in the lower right hand side of this pic. I have not found it in my electrical/vacuum manual ( probably in the supplement LOL)
Any help here? Thanks

limp · Jan 26, 2022

Nobody? I am guessing its carb cars only stuff and everyone on here has FI or a newer car... Wondering if maybe it plugged into the Air cleaner and actuated something on it??
Two black wires? I thought black wires designates ground, but both can't go to ground?
I am going to delete from the car, but I would like to know what the heck it did/does???

General karthief · Jan 26, 2022

When you take it off look for a part number.
I remember seeing that on another ford from the 80's.

limp · Jan 26, 2022

General karthief said:
When you take it off look for a part number.
I remember seeing that on another ford from the 80's.

Thats a good idea.... thanks

7991LXnSHO · Jan 26, 2022

@General karthief great idea on the part number. It does not look familiar from my 79, but I sold it (mumbmemumble) years ago.

limp · Jan 28, 2022

Here are some pictures..
Funny, while this part only has two black wires to the connector, the other side of the connector has a green and white that goes to the TAD or TAM, so it must be emissions control..
Only numbers I could find on the part.... 1253,

Bree · Jan 29, 2022

Maybe its a "your hood is open" sensor?

limp · Jan 29, 2022

Bree said:
Maybe its a "your hood is open" sensor?

I figured it out. it alerts you when the muffler bearings are going bad..

nickyb · Jan 29, 2022

That's a whatcha McCall it do hicky thing

7991LXnSHO · Jan 29, 2022

limp said:
I figured it out. it alerts you when the muffler bearings are going bad..

Are your emissions stickers long gone by now? Without a diagram from a book, that sticker is my next hope.

Bree · Jan 29, 2022

limp said:
I figured it out. it alerts you when the muffler bearings are going bad..

Oh yes.... I see it now! I had my phone upside down before!

limp · Jan 29, 2022

7991LXnSHO said:
Are your emissions stickers long gone by now? Without a diagram from a book, that sticker is my next hope.

I ordered an emissions repair manual last week.. I want to figure this out...

General karthief · Jan 29, 2022

Please keep us posted, I've got a headache looking for an explanation and even foned a friend. Nothing!

limp · Jan 30, 2022

General karthief said:
Please keep us posted, I've got a headache looking for an explanation and even foned a friend. Nothing!

Biggest problem is the car is outside as my garage is FULL.. I dont want to tear into the car until I get it inside ... With the prices and demand of used cars up I am going to sell my BMW and my car trailer.. The dodge is going on Ebay soon too... Then I can move the mustang into the garage...
I have bought alot of parts and rebuilt the engine so I have been 'Preparing " for the day it comes inside....
Anyone looking for a really nice car trailer?? You rarely see featherlites for sale... $6500....

90sickfox · Jan 30, 2022

That's a really nice trailer with a rock shield. I wish I had the money because it would be in my driveway.

limp · Feb 4, 2022

90sickfox said:
That's a really nice trailer with a rock shield. I wish I had the money because it would be in my driveway.

SOLD for asking price......

limp · Feb 4, 2022

So after ordering my Ford 83 Engine emissions diagnosis manual from just north of Atlanta ( I live directly south in Central Florida) it was shipped to Memphis and sat there a day or two, and I finally got it today..
Looks like this is called a Wide Open Throttle vacuum switch... One manifold vacuum line comes into it and one wire goes to the tad/tab switches.... Probably will not need it with the new carb that is going on it.....LOL
AFter going through this manual I tip my hat to the guys who kept these pre computer, Save the Whales pollution devices... What a nightmare....

7991LXnSHO · Feb 4, 2022

So …

limp said:
So after ordering my Ford 83 Engine emissions diagnosis manual from just north of Atlanta ( I live directly south in Central Florida) it was shipped to Memphis and sat there a day or two, and I finally got it today..
Looks like this is called a Wide Open Throttle vacuum switch... One manifold vacuum line comes into it and one wire goes to the tad/tab switches.... Probably will not need it with the new carb that is going on it.....LOL
AFter going through this manual I tip my hat to the guys who kept these pre computer, Save the Whales pollution devices... What a nightmare....

What is the function of the WOT vac switch? Any idea what it does to the Tad or Tab?

General karthief · Feb 4, 2022

It prolly turns off the emissions stuff and dumps the air from the air pump straight to the exhaust.
just guessing.

limp · Feb 4, 2022

I will read up on it in the near future.... A good manual.. All sorts of step by step diagnostics on he carb, distributor and the electrical system.... Step by step to check coil, Duraspark control etc......

Engine Help me figure out what this is?

wrap a little cheese around it and its a done

wrap a little cheese around it and its a done

wonder how much it would cost to ship you a pair

wrap a little cheese around it and its a done

wanna catch the space herp

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Active Member

wrap a little cheese around it and its a done

I gotta say i never painted my nuts, Never Ever

wanna catch the space herp

Active Member

wrap a little cheese around it and its a done

wonder how much it would cost to ship you a pair

wrap a little cheese around it and its a done

Wasn't a pretty sight...and I've got big hands

wrap a little cheese around it and its a done

wrap a little cheese around it and its a done

wanna catch the space herp

wonder how much it would cost to ship you a pair

wrap a little cheese around it and its a done

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