I shoulda took a pick of the wire befor I replaced the fender on that side... anyway, I have a double yello wire that an eyelet broke off of when disassembled. Now can't remember if it is just a ground or? Any body got an underhood pic, or just know where it goes? Thanks

 

Oh yeah, it's a '81 f-350 All f-series that year should be the same. Thanx

 

They are not all the same unfortunately.

there are differences between gauges, and warning lamps, Camper specials, and trailer specials, and auxillery batteries.

Is your truck a Camper, or trailer Special, and does it have or not have dual batteries?


Circut 37 Yellow wire, primary Power circut.

Could have the words fuse link on it.

If it has an eyelit on it, this hooks up to the starter solenoid battery cable terminal, or the accessory feed junction block located on the RH front fender.

Need more info to narrow it down further.

 

Yellow wires are NOT ground.

I'd hafta look but I suspect it goes to the starter solenoid or maybe the alternator/
voltage regulator. Then again, my horns also have yellow wires going to 'em. Are
there any other colors besides yellow? Like, a black hash maybe? Do you have
an ammeter or idiot light on the dash?

Yes, you should have taken a picture.

-ct

 

It's a 1981 1 ton cab and chassis, I know it ain't a horn...I'm in no hurry to burn wires, been there before. It rained all day today, I'll look under da hood again in the morning. Thanks!

 

After you go look, tell us to where the other end of the wire leads.

 

Ground wires are always Black. Circut #57 Black wire

Horn wire is Circut #6 Yellow/Light Green. And is located on the Driver Fender, not passenger fender.

Like I said earlier...

Circut #37 YELLOW Wire. (No other color) Primary Power circut feed. Hooks directly to the battery via either the starter solenoid, (Protected by a fuse link of the same color, or a Black/Orange fuse link) or it hooks to the Accessory Junction block, where other Yellow wires, and possibly a RED wire, and BLACK/WHITE wire is also connected.

CIRCUT #37 YELLOW Powers the following,.. (if equipped)...

Accessory Saftey Relay (Dual Batteries)

Ignition Switch

Fuse Panel Fuses F-7 and F-8

Trailer Batter Feed

Trailer Lamps Relay

Fog lamp relay

Marker Lamp relay via Black/White wire and/or Camper battery feed Red wire from accessory Junction block.


It does NOT go to the altenator!

You described it had an eyelit on it. This suggests it hooks up directly to the starter solenoids battery cable connection, or the accessory junction block.

hope this helps.

 

ok here goes, the wire in question, comes out of the wire harness on the pass side inner fender, has a big black lead to + side of solonoid, a red wire goes to the round plug/disconnect, and the solid yello comes to the "loose eyelet" then to the cylindrical do-mahickey that mounts on the fender w/ the voltage regulator...By the way do-mahicky IS a technical term in my neck of the woods The truck does not have, or look to have ever had dual batteries, but may have had a plow w/ acc. lighting..It is a dump truck. Thanks again guys. F-ee

 

Ok, Check the color of the wire again.

The wire you are describing is yellow/white dash. It may be hard to see, or it has been faded off.

The Cylndrical thingmy is called a Radio Ignition suppression Capacitor, and is hooked to the bottom screw holding the voltage regulator on.

One end of this wire is hooked up to the Black Orange Fuse link, (which comes off the solenoid,) with a Red/Orange stripe wire if the truck has gauges.

the other end of this Yellow/White Dash wire is supposed to connect to the voltage regulator, and capacitor.

 

The yello wire in question does indeed have white marks on it. Truck has dummy lights, and had a CB at some point. I took a pic and will try to get it on here. Thanks, T

 

Photo posted on the gallery. 1981 1 ton dump. thanks

 

OK, you're holding that junction of yellow wires; your finger's in the way but it looks like
one of those yellow wires goes to the capacitor mounted on the inside of the fender.
Again, it looks like Circuit 36 Yellow/White Dash, and it looks like what you're calling a
broken eyelet may in fact be a connector broken off from inside a plastic housing.
Specifically, Connector 204, which plugs into the voltage regulator.

There are two such connectors, it depends on if you have factory gauges or not.

With gauges, the connector has the wires connected in the following order:

Orange-Light Blue
Light Green-Red
Yellow-White Dash (where your two wires prolly go)
A blue sumthin-or-other, perhaps the connector itself is blue,

Without gauges, the order goes:

Orange-Light Blue
White-Black
Yellow-White Dash (where your two would prolly go)
Light Green-Red

I would suggest looking on the connector on the voltage regulator and see if the wires
there match the above descriptions and if perhaps the yellow/white-dashed ones are
missing and there's a broken connector in the plastic housing.

-ct

 

If that yellow/white wire you are holding, is connected to the capacitor that is bolted to the voltage regulator, and you do not have a yellow/white wire coming out of the voltage regulator itself, then that is where it goes.

With warning lights you should have 5 wires plugged into the voltage regulator.

One: Circut #35 Orange/Blue wire

Two: Circut #36 Yellow/White wire

One: Circut #904 Light Green/Red wire

One: Circut #4 White/Black Wire.

 

Thanks Explorer, the connector to V-R did in fact have what looks like the other half of my "eyelet". I did get the broken portion out. I guess I could drill out the plug for that connection and just put a female spade end on there. I don't want to cut the plug off. Any idea if parts stores carry a square, crimp-on terminal like the one that broke, or just get another voltage regulator plug-in connector from a junk yard. What would you do? Thanks again, F

 

Ford used to carry electrical terminals, and connectors for wire repair.

Not sure if they would have the terminals or connectors you need anymore, but it would be worth a try.

If they do still carry the female spade connector you need, all you will have to do is crimp it back on the existing wire, then it will plug into, and lock in the back of the connector.

This is of course assuming the connector itself isn't broke too.

You can get connectors and terminals in quality parts stores too. Ask the salesman. And don't let him take you to the universal connectors and terminals, that's not what you want.

There are specific and specialised parts out there to fix wiring problems, like yours, without having to cut or splice any wire, and the finished job will look and function, exactly like it did coming off the factory floor.

This is the methods I'd use.