Hi Kevin,

I have a 96’ Scout with an internal gas tank.

When I turn the ignition switch to on, the fuel gauge immediately pegs high (past full) and stays there.

Before I get too intrusive I was wondering if you have any suggestions?

Thanks,

Drew

Drew,

A pegged full fuel gauge usually means the sender is stuck in the “up” position or that there is a short in the pink sender wire.

Here are the steps I would take:

1. Disconnect the pink wire from the gauge. If the gauge is still pegged, replace the gauge. If not, reconnect.
2. Disconnect the pink wire from the sender. If the gauge is still pegged, the pink wire has a short in it between the fuel gauge and the tank. If not still pegged, the problem is the sender.
3. Remove the sender.Determine if it is a mechanical or an electrical failure. A mechanical failure will be obvious. To test for electrical failure, connect an OHM meter where the two wires were connected. You should read 33 ohms for full and 240 ohms for empty.

One of these steps will locate your fuel gauge problem,

Kevin

Kevin

Thanks for your quick response. 

Looks like a sender problem since I eliminated the gauge based on your comments.  I removed the sender yesterday and it looked in good shape but will need to go back and check the resistance. 

Again – thanks!