1997 Maxum SCR 2400 fuel gauge/sender not working

[Marcoz9]

Hello,

The fuel gauge on my 1997 Maxum SCR 2400 is stuck at 3/4 full
What should be the troubleshooting procedure and where the sender is located?

Thanks

[mmwjr]

The sender is in the fuel tank on the aft end which is exposed in the engine compartment. Look for a round plate on the top of the tank. The center wire is the sender feed, remove it and the gas gauge should read empty. Then ground it and the gauge should read full. If both of these pass the sender is bad.

[Marcoz9]

Thanks!! I will tray this weekend

[Marcoz9]

I did the ground test - the gauge works properly - now to replace / inspect do I need to empty the tank? is it wort to inspect the sender or is better to order a new one.

Thanks

[mmwjr]

Originally Posted by Marcoz9

I did the ground test - the gauge works properly - now to replace / inspect do I need to empty the tank? is it wort to inspect the sender or is better to order a new one.

Thanks

You can remove the sender with half a tank that way it’s well below the top where the senders located. Just replace it. They come in different arm lengths so you need to know the length of the existing one.

[Trey5684]

Maybe Mike can verify, but some of the "newer" type magnetic senders are a little steadier than float type, but as Mike said you do need to know tank depth.

[mmwjr]

Originally Posted by Trey5684

Maybe Mike can verify, but some of the "newer" type magnetic senders are a little steadier than float type, but as Mike said you do need to know tank depth.

Yup you’re correct. These have a vertical shaft instead of a float arm which has I higher tendency to bounce.

[Marcoz9]

I replaced the sender - all works now!

Thanks

[mmwjr]

Originally Posted by Marcoz9

I replaced the sender - all works now!

Thanks

Thanks for letting us know, enjoy.