On the 1994 F350 7.3L IDI Ford Fuel system wiring diagram I have, some of the wire colors do not match the drawing I have. I am trying to replace the sending units in both tanks. I have the Bed off the truck and need the correct wiring diagram where I can troubleshoot the problem I have, which is both tanks register way past full regardless of what tank is selected.
Please if anyone has the drawing could you please tell me where you got it. Need ASAP
Thanks in advance .

 

the yel/wht goes to A5 on the cluster......

 

Thanks lonewolf

 

Greetings,

Lomewolf, sent the drawing I needed for my F350 fuel tanks and gauges. Amazing how a correct schematic can change your perspective on trouble shooting a problem

Found a ground missing on the front tank sending unit circuit and found the rear tank sending unit dirty and cleaned it real good since I could not find the rear unit anywhere.

Found shower head in both tanks had disintegrated and fallen off. Replaced both with new ones and put the tanks back together with original sending units and both tanks register as they should. Wanted to put new units in but unable to find any, hope they will become available in the future and will buy some for spares.

Thanks again to lonewolf for the drawings. Will mark this post closed.

 

I try to post proper information as requested by the original posters of a Thread.......

being as these trucks are very old now... sometimes different FTSV are used and wire colours don't always match due to Aftermarket products, but basic Pinouts should remain same.

or very similar... sometimes one needs to specify what Valve is being used and I can always help with those issues, as long as I know what you are dealing with.

anyway Thanx much for your appreciation of the diagram and I'm glad it helped ....

GOOD JOB on finding your issues and fixing them

those shower heads can be a PIA... I went Stainless years back..................





anyway Thank you again for the Positive Attitude...... that seems to be pretty short sometimes in these forums.........

 

I have a 99 F350 7.3L. I’m wiring in an aftermarket Fuel level gauge. I just need to know which color wire to connect from the sender. Obviously I can ground wherever. Any help would be much appreciated!

 

You're looking in the wrong place if you have a 99, we're the old school IDI's down here, try the next forum up with Powerstroke 7.3's