My 2000 sierra has been doing this for years.They say it is due to wore out contacts on the fuel gauge that is on the fuel pump which is in the tank. I just reset the trip meter when I fill up and go till about 300 miles or so and fill up again. I was going to fix it but never got around to it.

good luck

 

d_eggman2 is correct. My 03 Silverado did this too but unfortunately the gage stuck at a quarter tank for a couple of days and I ran out of gas on the highway. I got a new sending unit/fuel pump from GM, dropped the tank down and installed it in a hour or two. No problems since.

 

GM had a bulletin on this. The problem is the "wiper" on your fuel level sender gets some contamination on it with certain fuels. GM has a special cleaner you can add to the fuel tank to "clean" this part. I believe the bulletin mentions the part number but this stuff costs like 25 bucks a bottle.The easier way is to purchase some premium fuel from Shell or Mobil or any of the top tier fuel suppliers. It's also possible the wiper on your sender is worn too.

 

My truck does it to I just deal with it.

 

What would this forum be without your exceptional level of intellect and insight? High praise for a big helping hand. 💡🤤

 

Thanks for the replies. Like i said it just started recently so it hasn't been a real problem. I too have been resetting my trip meter when i fill up. I'll give the premium fuel a try.

 

My truck does it to I just deal with it.

thats what i do and my votec teacher told me just to replace the whole fuel pump which is what i plan on doing in the near future

 

If the cleaner or top tier fuel does not fix it, I'd just replace the whole fuel pump assembly with a new AC delco one.

 

@schuppdogg89 You do realize that the post you quoted is from 13 years ago, right? Also, that member has not been on this site for 9 years.