My fuel guage reads reverse when full reads empty etc. was like this when I got JEEP is it possible wires could be crossed somewhere or is there even 2 wires that can be crossed or just bad sending unit. THanks
I just did a quick search, and it looks like the stock sending unit should read 0 ohms when empty and 90 ohms when full. It sounds like someone put a junkyard pump/sending unit in the tank with different ohm readings. I don't think that you can just swap wires, but I am not an electrical guru either. Different manufacturers use different ohm readings on some sending units, i.e. 0 Full-90 Empty, 120 Empty-30 Full etc.
edit:What kik said, try switching wires first, it might work?
If the sending unit is a three lead potentiometer and you reverse the outside two leads, you would get the same effect as what you are describing. Reversing the indicator on the dash would cause it to go backwards from empty (unless it is a center zero type indicator). If it is a center zero type indicator, then you might get the effect you are describing by accidentally reversing the leads at the dash.
Participate in life....Keep movin'....Go there....JK'n it.........Do it! Jeep #1: Red Rock 08 JK Rubicon 4dr, 6 sp manual, Stock Mud Tires, MyGIG Upgrade, Hard Top, after sale BestTop SunRider Soft Top, Congo Cage Rack, Mopar slush mats Jeep #2 Black 08 JK Rubicon 2dr, 6 sp manual, both tops, some chrome...uggg (my wife's jeep) Jeep #3 White 92 YJ (my son's jeep) A great quote from a good friend: "All hail click clack and master jk'n." Click and clack are my idols!
disagree! it's not fun at all! it completly SUCKS......especially when your teenage helper decides to disappear and play black ops or something like that........
Well, I have to admit that I haven't put mine back in yet - I am waiting on a new sending unit. When that gets here and I try a one-man reinstall I may have to agree with you. But hey - a bad day working on a Jeep is still a good day right?