fuel gauge

Mess · Jun 3, 2015

My fuel gauge does not work on my 4020 either, and I was wondering if it is more common for the gauge to malfunction, or the sending unit to be faulty and how to determine which it is going wrong

Steve@Advance · Jun 3, 2015

Find the wire going to the sending unit. With the ignition on, ground the wire. The gauge should read full, remove from ground, the gauge should return to empty. (Some work backward). This test will prove the dash unit is good. Also make sure the tank and sending unit housing are grounded.

If the gauge did not move, check for voltage to the dash gauge. Most are 12v but some use a regulator to reduce the voltage, but there should be some voltage to the gauge. Again ground the sender wire. If the gauge has power, and the sender terminal is grounded, it should move. If not, the dash gauge is bad.

tim s · Jun 3, 2015

If it has been changed to 12 volt negative ground you will need a RE53664 gauge and a AR26434 sender, be sure you look at the gauge terminals closely a ground wire is needed , a switch (positive)and the sender wire, the Deere replacement does not fit well, you will need to fudge with it to make it fit.

fuel gauge

Mess

New User

Steve@Advance

Well-known Member

tim s

Well-known Member

Similar threads