1985 E150 Dual Tank Wiring

[IM2HI2CU]

I have searched around trying to find a wiring diagram for the fuel delivery system. I have a 1985 Ford E150 with dual gas tanks. I have a Chilton Ford Pick-Up and Bronco 1976-1986 but the wiring diagram for the 1985 F150 does not match the color wires for the plug at the fuel tank switch.

 

I have a replacement switch that was produced by Ford (Motorcraft switch E6UB-9A050-AB) and the wire connector plug (Ford D9AB-14489-JD) to be spliced into the existing wire harness coming out from the center of the dashboard.

 

OK, here is my problem. The stock wiring connector has 5 wires going into the stock switch. The stock switch also has offset terminals so it will only go on one way.

 

My replacement switch has 6 symmetrical terminals. The replacement wire connector has 4 wires coming out of the back of the connector switch to be spliced into the existing wiring and two of the wires double back to other terminals for a total of 6.

 

The stock color wires are:

 

green/red

black/orange

red/yellow

orange

green

 

The replacement color wires:

 

black

red/yellow

red/tan

brown/orange

 

Autozone lists a switch for my year that have 6 screw connections (SW48) but I wouldn’t know how to wire that switch to my stock wiring, or what terminals doubled-back to another terminal.

 

Urgh!!!! I hope that I explained my problem with enough information. Thanks guys.

[IM2HI2CU]

I grounded both gages and both peg full.

 

Went to RS and got a switch DPDT 10A 6-pole toggle switch with center off position (#275-1533). Everything works! The additional perk is to have the central off position to turn both fuel supplies off. Oh, and it cost $4.27 including tax.

 

Just wanted to follow up the post.