Odd gas gauge in my 2000 GTP

[SwiperDaFoxx]

I was wondering if anyone ever had a problem out of their gas gauge floating up and down before. Under acceleration it jumps to full, sitting for a few minutes it eventually floats down to nothing. I've been just comparing the miles driven to gallons used to keep track of it. Is this a common issue with a fix or do I need to just install a new sending unit in it and be done

 

[The Guz]

Sounds like the fuel pump sending unit needs to be replaced.

 

[SwiperDaFoxx]

Yeaaa...that's what I figured. Just checking and making sure its not a common issue

 

[Jhart5]

Yep sending until is going bad. Had same issue on mu Silverado i had. My dad's 01 Impala is doing same thing.

 

[Bronco Boy]

Fuel level sensor = common GM issue.

http://chrisb.users.superford.org/Grand_Prix/Projects/Fuel_Level_Sensor/Fuel_Level_Sensor.html

 

[K Slice]

^That's a good link! replacing just the sensor should be way cheaper than the whole sending unit.