What are the resistance values of the Ford diesel fuel tank senders?

Both the front and rear tank fuel gauge senders read 145 ohms when full and 22.5 ohms when empty. Resistance is low (22.5 ohms) when fuel is low and high (145 ohms) when fuel is high.

What fuses power the diesel fuel gauge circuit?

A 15A fuse (hot in ACC or RUN) and a 10A fuse (hot in RUN or START) in the fuse panel feed circuit 640 (R/Y) to the instrument cluster fuel gauge.

What does the fuel tank selector valve do?

The fuel tank selector valve (labeled DIESEL) determines which fuel gauge sender, front or rear tank, will control the fuel gauge position.

What wire colors go to the front and rear tank senders?

The rear tank sender is fed by circuit 675 Y/LB through connectors C427F/C427M; the front tank sender is fed by circuit 673 DB/Y through connectors C421F/C421M. Both grounds are circuit 57 BK.

How does the fuel tank selector switch work?

The FRONT/REAR selector switch, powered by circuit 973 R (12V in ACC or RUN through C268), determines the direction in which the fuel tank selector valve motor will move via circuits 789 BR/W and 786 R.

Home/ Registry/ Ford/ Bronco/ 1980-1986/ “That dirty old truck”/ Photo supermotors.net/registry/media/1126307

Ford Diesel Dual Fuel Tank Gauge & Selector Valve Wiring Diagram

Diesel fuel gauge wiring diagram with color-coded wires, connectors and fuel senders

‹ ›

Reference · 1980-1986 BroncoAll 92 wiring diagrams

1994-1997 Ford Shift Lock Actuator Wiring Diagram - BOO Switch & Circuit 511

'92-96 dual tank switch wiring diagram with C268 selector switch pinout and fuel pump relay

'93-95 Lightning fog lamp wiring and installation diagram with relay and switch circuits

Ford Diesel Dual Fuel Tank Gauge & Selector Valve Wiring Diagram

'94-96 radio and amplifier wiring diagram with harness part numbers and radio delete inset

'96 7.3L glow plug control diagram with PCM, glow plug relay, EOT and BARO sensors and eight glow plugs

'92-94 and '95-96 wiper and washer wiring diagrams with multi-function switch and wiper control module

'78-91 wiper/washer wiring diagrams for 2-speed and interval systems with wire colors and connectors

92wiring diagrams1980-1986 Ford Bronco More reference

Ford accessories catalog page with cellular mobile telephone and 40-channel CB emergency radio

Brochure

Ford door certification label dated 11/95 with GVWR 6300LB, P235/75R15XL tires and VIN 1FMEU15H4TLA76236

Spec plate

1992-96 Ford F-150/F-250/F-350 2WD Front Sway Bar Diagram & Part Numbers

Exploded parts

1992 Ford E4OD Transmission Fault Code Diagnosis Chart - DTC List & Symptoms

Service procedure

Schematic

1996 Ford Bronco/F-Series Starting System - Section 03-06 Contents

Manual page

Trim panel hole layout photos for positions A, B and C with tape measure readings from the body line

Blueprint

Ford 1996 5.8L vehicle information decal with vacuum hose routing diagram and ASF-32P plug

Vacuum routing

Torque spec

'95 F150 fuse and relay chart with fuse panel layout, ATC and Maxi fuse amp tables

Fuse chart

Diesel fuel gauge wiring diagram showing color-coded circuits between fuse panel, instrument cluster, selector valve and tank senders.

Part of 1980-1986 Ford Bronco Wiring Diagrams

AI caption January 2018 · Photo 5648 of 6546

This document is a wiring diagram titled 'Diesel Fuel Gauge' showing the dual fuel tank gauge and tank-selection circuit for a Ford diesel truck. Power comes from two fuse panel circuits, a 15A fuse (hot in ACC or RUN) and a 10A fuse (hot in RUN or START), feeding circuit 640 (R/Y) through splice S215 and connector C251 to the instrument cluster fuel gauge. The gauge output leaves on circuit 29 (Y/W) through connectors C205 and C423 to the fuel tank selector valve (marked DIESEL), which determines which fuel gauge sender controls the gauge. The fuel tank selector switch (FRONT/REAR positions, fed by circuit 973 R, 12V in ACC or RUN via C268) controls direction of the selector valve motor via circuits 789 (BR/W) and 786 (R). Sender feeds are circuit 675 (Y/LB) via C427 to the rear tank sender and 673 (DB/Y) via C421 to the front tank sender. Both senders read 145 ohms full and 22.5 ohms empty; a note explains the sender is a variable float resistor. Grounds run on circuit 57 (BK) through splices S205 and S400 to grounds G201 and G100. Connector, splice, and wire color codes are labeled throughout.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What are the resistance values of the Ford diesel fuel tank senders?: Both the front and rear tank fuel gauge senders read 145 ohms when full and 22.5 ohms when empty. Resistance is low (22.5 ohms) when fuel is low and high (145 ohms) when fuel is high.
What fuses power the diesel fuel gauge circuit?: A 15A fuse (hot in ACC or RUN) and a 10A fuse (hot in RUN or START) in the fuse panel feed circuit 640 (R/Y) to the instrument cluster fuel gauge.
What does the fuel tank selector valve do?: The fuel tank selector valve (labeled DIESEL) determines which fuel gauge sender, front or rear tank, will control the fuel gauge position.
What wire colors go to the front and rear tank senders?: The rear tank sender is fed by circuit 675 Y/LB through connectors C427F/C427M; the front tank sender is fed by circuit 673 DB/Y through connectors C421F/C421M. Both grounds are circuit 57 BK.
How does the fuel tank selector switch work?: The FRONT/REAR selector switch, powered by circuit 973 R (12V in ACC or RUN through C268), determines the direction in which the fuel tank selector valve motor will move via circuits 789 BR/W and 786 R.