SOURCE: fuel gauge bounces up and down
need a new gauge for the fuel tank/ If you need to drop fuel tank try to make it with less than a qtr tank they are pretty heavy to dop out/ Please rate my response thank you very much
SOURCE: Bouncing fuel gauge
make sure your ground from the sending unit in the tank is good. it is usally rusty a few years from being on the road. you will need to remove it. put a new end on it and reattach it if it is rusty. if it is not rusty you need a new sending unit in the gas tank.
SOURCE: fuel gauge bouncing on 2000 chevy tahoe where is fuel pump relay
I had previously replaced the failing fuel pump on my '98 K2500 when it went out entirely. I was ready to replace my 2000 K3500's fuel gauge as it was acting up.
When I started the engine, the gauge would bounce from the middle to way past full then back. It would also jump sporadically while driving on level ground.
I checked the electrical connections at the tank and made sure the frame ground strap located nearby was making good contact. Nothing changed until I removed the instrument panel and cleaned the connections on the back. The fuel gauge seems to be operating correctly now.
There are videos on YouTube that show how to remove the instrument cluster if in doubt. Mine dash has a pop-in plastic bezel followed by 4 screws to hold the cluster in place. It took about a half hour to inspect & clean the dash connection vs. $250 to replace the pump/sending unit combo. Hope this helps.
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