I have a 97 SE and my fuel guage doesnt work right. It always sits on full when im driving. but i had it in the shop today and was lookin at it and it was workin jus fine. but if you would bump the car or rock it, it would jump right back to full. Im thinkin its just a loose connection somewhere. I was wondering if anybody has had this problem before and wat the solution is? once a lift opens up at our school shop im going to take it in and check all the connections on the fuel pump. any ideas? thanks

I would check your ground bus locations when you have it at your shop to start.

here is a link found here that will help
https://www.gmforum.com/t278980/

Also being that you said you just have to bump the car and it'* fine might just be a loose connection at the pump. That can be found on the top of the gas tank.

Hope this helps.

Todd.

yep should help. thanks. ill check the ground this weekend if the weathers nice enough n ill check the pump connections when a lift opens up at the school shop. thanks