99 Sonoma fuel guage works then doesn't

Tiny
AUTOIMAGE1
  • MEMBER
  • 1999 GMC SONOMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 128,198 MILES
I have a '99 gmc sonoma fuel system/guage problem. When I turn on the key the fuel guage go's to full then after a a couple of minutes it go's to empty then after a while it go's to full again. Is it a griund problem, a guage, or the fuel level sending unit problem
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Friday, April 22nd, 2011 AT 1:50 PM

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Tiny
RASMATAZ
  • MEMBER
Check and test the fuel sending unit
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Friday, April 22nd, 2011 AT 5:24 PM

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