135 ohms new, and will function properly down to 114 ohms.
The chart in the '86-'87 book shows:
Empty=110 ohms +/- 7 ohms
Full=3 ohms +/- 2 ohms
1/2 full= 32.5 ohms +/- 4 ohms
full 10 ohmss empty 80 ohms
0 Ohms empty, 90 Ohms full.
Check out www.fordification.com/fuel-sending-units.htm I think you will find your answer there.
20 ohms when empty, 220 ohms when full.
2o ohms to 200 ohms is what i'm getting on my 87 model
Ohms is a measure of resistance. When the electricity passes into the speaker, some of it is 'resisted.' The ohms rating of the speaker is how much is resisted, and an indication of how much energy it takes to drive it - the higher the ohms rating, the more difficult it is to drive.
Full position (up) - 7 ohms Half tank (middle) - 33 ohms Empty position (down) - 95 ohms
In the up position, it should be 20 ohms. In the down position, resistance should be 220 ohms.
The power rating of speakers has nothing specific to do with ohms. look at the Watts rating printed somewhere on the speakers
Check the glow plugs (ohms) and wiring for shorts
Usually is the input impedance of the load 10 times higher than the input impedance of the sender. So the sender's ohms is one tenth of the load.
The gas sending unit for a 1987 Jeep Wrangler typically has a resistance value of around 0 to 90 ohms. This means that when the fuel tank is empty, the resistance is close to 0 ohms, and when the tank is full, it reaches approximately 90 ohms. However, it's always best to verify with a service manual or specific part documentation for accuracy.