Relay trouble 83 ranger 2.8l v6 2wd automatic

[bshun]

Hi , I'm having trouble identifying a relay and connector that is bad so I can replace it. Engine compartment passenger side right under the starter solenoid in between the battery and the vacuum ports is a 5 pin relay with a brown connector. Wiring harness on that side should be for the emc but when I look the ecc relay has only 4 pins. So it can't be right. Someone jumped a wire on it before i owned it and now the connector is corroded and needs to be replaced.
Only relay I see online with 5 pins is fuel pump relay but mine is mechanical.
Im still learning and in need of help. I have all the books and can't find anything.

 

[franklin2]

It may be the relay for the electric choke. Does it have a purple, red, yellow, grey/white and maybe another red wires going to it?

 

[bshun]

 

[franklin2]

Looks like the grey/white may have been cut. My 84 was the same way. Someone had cut this wire(this is the one that feeds the choke electric) and re-routed it to the "S" terminal wire on back of the alternator. This will send about 7v to the choke when the engine starts.

If yours is wired like this, there may be no use replacing that relay, it's not being used. This may be the start of the road to getting rid of your computer system like everyone else does.

 

[bshun]

That blue jumper was being used to jump it to that red wire. So it's the choke not the fuel pump relay?
The inside of the relay and the connector r super brown and corroded. When I disconnected the jump it didn't start(when it was running)
Ill try to find it on the back of the alternator and see

 

[franklin2]

If you do not have a ammeter in the dash, but a "gen" light, then you will have a white/black wire already on the "S" terminal of the alternator. If that is the case, they may have intercepted this wire as it goes across the top of the engine and spliced the choke wire there. Don't know why Ford put the alternator on the pass side of the engine, but put the regulator on the driver's side fender. That puts the alternator that much further from the battery and it's more wires going across the top of the engine. I have been thinking about changing mine, though I just remembered, if you have the original setup your pass side fender is clogged with emissions stuff. So that might be why they put the regulator on the driver's side fender.

 

[JoshT]

So it's the choke not the fuel pump relay?

I don;t have diagram for the 83/84 model trucks, so I can't confirm if that is a choke relay. I did have an 84 model, but all of that stuff was long gone in deleting the computer as franklin2 mentioned. I can say this much...

The 2.8L used a mechanical fuel pump. As such, there is absolutely no reason for it to have a fuel pump relay or fuel pump related wiring anywhere on the truck.