Need help with gas gauge

[RockBit]

There is a spade connection in the signal wire at the corner of the tank. I started wondering if the tank side of the connection is bad (I know the car side is good). Just checked, it's good.

[Bender]

Hi Chris.
I had a similar problem recently. If you have fibre or nylon washers on the bolts. The sender does not earth to the tank through the bolts. You need to connect an earth from the chassis directly to the sender unit base. Some sender units have an earth wire spade soldered to the sender unit base. Some don't. The earth wire if connected to the sender base by the bolts. You need the wire/ terminal to have direct contact with the sender base. ie no washers between the wire and the sender base.
Hope this helps and you can be out enjoying your ride.
Bender

[RockBit]

Originally Posted by Bender

Hi Chris.
I had a similar problem recently. If you have fibre or nylon washers on the bolts. The sender does not earth to the tank through the bolts. You need to connect an earth from the chassis directly to the sender unit base. Some sender units have an earth wire spade soldered to the sender unit base. Some don't. The earth wire if connected to the sender base by the bolts. You need the wire/ terminal to have direct contact with the sender base. ie no washers between the wire and the sender base.
Hope this helps and you can be out enjoying your ride.
Bender

There are no fiber or nylon washers, but there is some sort of thin gasket sealer under the metal washers and on the bolt threads. This bothered me, so I am pretty sure I checked the continuity from the installed sender base to the tank with my meter. Even so, I will try this. It will be a few days before I can get back to it.

Thanks for your help.