Fuel pump wiring

[Eagle]

9 hours ago, Eric sicca said:

Funny

 

You thought he was kidding?

 

You're making sparks right next to the gas tank ...

[Eagle]

https://archive.org/details/88FSM

[Minuit]

It's all fun and games until your truck is a burning heap next to the road.

 

As someone who has played with wiring and electronics on one or two occasions, nothing about that picture you've posted is funny. Every single wire in that hacked together harness needs to be traced out and compared with both the original harness and the donor vehicle. The splices need to be done with insulated heat shrink crimp terminals at a BARE MINIMUM. Soldered or uninsulated crimp connections backed up with adhesive-lined heatshrink are better. Even better is to not have splices at all, even if it means replacing the connector and running new wiring. The crimps in that picture are barely suitable for interior work, let alone mission critical wiring under the vehicle in close proximity to a tank full of fuel. I don't see the strain-relief crimp either, so chances are those connections were made with a pair of pliers.

 

Also, if you're going to post a help thread, we need to know every detail you can tell us about this truck. We can't help you if we have to beat every detail out of you. We are here to help, but you've gotta give us what we need to help.

[Eric sicca]

37 minutes ago, Minuit said:

It's all fun and games until your truck is a burning heap next to the road.

 

As someone who has played with wiring and electronics on one or two occasions, nothing about that picture you've posted is funny. Every single wire in that hacked together harness needs to be traced out and compared with both the original harness and the donor vehicle. The splices need to be done with insulated heat shrink crimp terminals at a BARE MINIMUM. Soldered or uninsulated crimp connections backed up with adhesive-lined heatshrink are better. Even better is to not have splices at all, even if it means replacing the connector and running new wiring. The crimps in that picture are barely suitable for interior work, let alone mission critical wiring under the vehicle in close proximity to a tank full of fuel. I don't see the strain-relief crimp either, so chances are those connections were made with a pair of pliers.

 

Also, if you're going to post a help thread, we need to know every detail you can tell us about this truck. We can't help you if we have to beat every detail out of you. We are here to help, but you've gotta give us what we need to help.

Are you missing the picture? I said gas guage not anything else. I've  welded next 100s of tanks I'm not worried about 6 volts 3 feet from tank

 

[shelbyluvv]

Here's a hint.

90 and lower use 3 wires with a common ground. 91+ use 4 wires with 2 separate grounds.

Find the grounds in the 4 wire plug. There will be 2. Tie them together and use your last wire for the sender.

[Ray Rodriguez]

Question:

 

If i connnect the wires backwards on the fuel pump, will it make it work backwards? Blowing instead pulling... I'm an electrician and reversing polarity sometimes does that.