Mechanics

QUESTION ABOUT FUEL GAUGE

1999 GMC Suburban • 190,000 miles

I just bought a '99 Suburban that runs great. The only problem is the fuel gauge. When I turn the key to start it, the gauge literally goes all over the place, including off the fuel grid, pointing straight down. Once the truck starts it goes to "E" and stays there. I know there's gas in the truck so any suggestions and/or help would be greatly appreciated. Thanks.
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NYYGehrig
June 8, 2012.



Sounds like a bad fuel gauge sending unit. Do you have any codes?

Saturntech9
Jun 8, 2012.