Can anyone tell me whats going on?
Fuse box by my battery has a white wire going into the
Bottom of it. Some times loses connection an then the whole truck
Has no power. Have to wiggle the wire around in order to start my truxk
Someone help??
How do i fix?

 

Sounds like it's the main power feed to that fuse box and you have a loose connection. Open it up and see what you have to do to fix the connection.

 

That wire is bolted fast.

It either vibrated loose or the crimped on lug is broken but from being loose has now arced so bad it is only time to a complete failure.

 

Sounds like your fusible link. I will have no power if it looses connection.


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Here is a picture of the Fusible Link. It is connected to 80 amp fuse and to the positive battery cable. The white part is the actual link. Took me awhile to find this out.


Here is the Fusible link attached.


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Here is a better update of the Fusible Link..
When I ran into this on my 88, I thought someone had did a cheap repair job, but it is actually a factory Fusible Link. Chef helped me figure this out back then. It is crimped to the Positve pigtail coming off of your Postive Post.


All of the other fuses lift up and out. The 80 Amp you have to pry this tab to the firewall and push out the bottom.


Here it is mounted to the Fuse. It mounts behind the wires. I usually have to take a 8mm socket to the screws the first time. They can be TIGHT.

 

Here's how you bump a dinosaur. Does anyone know the part number of the fusible link so I can order it from Toyota or at least find a comparable one? Mine broke on my '88 right at the ring terminal on the battery side. Thanks!

 

I found mine at NAPA auto I bought a roll if you were close I would give you some ,it was blue in color

 

If it is the battery side just solder another terminal on.

 

I appreciate that - I ended up buying a pre-made one from Advance (http://www.dormanproducts.com/itemde...7&SEName=85623). I'll swap the bullet connector for a ring terminal.

Well, the PO previously "repaired" it, I think. A new wire was needed. Good call, though.

 

I really hope that works .

It does not give any current carrying capacity if it opens you will find out