Exterior Semi-Tech General discussion of exterior for the Ford Ranger.
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Dimensions for fuel float

  #1  
Old 02-20-2019
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Location: Collinsville, IL
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Dimensions for fuel float

I have a 94 ranger with the 4.0 v6. Could anyone help me out with the dimensions of the Fuel Float Cylinder? Mine is leaking and I've decided to 3d print one, but I don't really want to pull the bed to get the old one out, then pull it again to put new one in.Thanks!
 
  #2  
Old 02-21-2019
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Depends on what material you use

It needs to be air tight and have enough buoyancy to lift itself and the metal arm against resistance of the sender

I would think 1" x 3" would be plenty

You can just go to a wrecking yard and get one from pretty much any vehicle, and nylon zap strap it to the arm

Years ago I used 4 ping pong *****, lol

Have you tested OHMs on the Yellow/white stripe wire from the sender?
16ohms empty, 160ohm full is expected

If fuel gauge stays on Empty all the time it is more likely to be the Anti-slosh module on the back side of the instrument cluster than a sender or float issue
This module is a well known failure point on Fords

You can access the Yellow wire back by the gas tank, use a sewing needle to pierce this wire, then test OHMs to Ground, depending on fuel level in the tank it should be between 16-160ohms, if it is then float and sender are OK
If its 16 ohms and there is gas in the tank then sender is OK and float is bad
If ohms are 0 or above 160 then sender is bad,
If 0 ohms then sender or yellow wire is shorted to ground somewhere between gas tank and dash
 
  #3  
Old 02-21-2019
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I'm confident it's the float. It has a hole and fills with fuel. I tried to patch it up a while ago because I didn't have time to deal with it, but it failed again. When I unplug the sending unit the guage reads full, since there's no resistance, so everything between the sending unit and the gage works fine.
I designed the new one as a hollow cylinder a 1.25" x2". We'll see what happens.
 
  #4  
Old 02-21-2019
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Good testing

That size should be fine

Make sure the material you use is Ethanol friendly/resistant
 
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