Freeing a sticky gas tank float?

[Bungee]

When starting my 2000 Z71, the gas guage sometimes registers "Empty" for quite some time. Then after maybe a couple of minutes, it will kick up to where it should be.

I'm assuming this is due to a sticking float sensor. If this is so, what is a good way to remedy the problem? Again, this only happens once in a great while, not every time.

Thanks.

[brian_fthood]

I also just started having this problem in my '01 5.3 Z71... tips appreciated.

BJ

[jeffreyo]

My '99 silverado has fuel indicator problems. when tank is full, foot on brake at red light, the gauge will drop all the way down and low fuel message displays. this resets a few seconds after brake is released. It also ocurs when idling in park. I assume that sending unit needs to be replaced, just haven't done it yet. I did get some practice changing the sending unit in my '77 cj5. any advice would be appreciated!

[GMMerlin]

You will need to replace the sender assembly.
The high sulfur content in some fuels degregates the card causing intermittant operation