Mine stopped working
One time in a rain. Unplugged the four wire electrical connector at the tank and re connected it. Has worked ever since.
I just checked the sender from my 92. I replaced the entire assembly when I put in a new fuel pump. The resistance goes from 160 ohms full to 15 ohms empty. This is reverse of how many of these senders used to work where typically problem was somewhere around half full it shortly goes to empty. Now a broken sender must send the gauge to full, though havent tried it.The sender is a ceramic resistance element. Sender wire is yellow/white and if you bring it to ground it will read full. If you are unsure of connection, bring it to ground through a 120 ohm resistor, available at Radio Shack, it will still show about 3/4 full. This will test the dash gauge. Use an ohm meter to check the sender in tank.
