When i turn my key to check the fuel pump i hear and feel a loud vibrating noise on 2007 Chevrolet Tahoe

Ive been driving it like that going on a year , the vibration will stop but come on a whiles later if i stay driving , any ideas? And or is it normal? Im sure its not ,if u can help i would really apprecciate it ,please and thank you

by in Pasadena, TX on March 06, 2014
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2 answers 1 comment
ANSWER by , March 06, 2014
Were do u here the noise??
COMMENT by , March 06, 2014
I took the gas cap to listen to it and thats when i heard the vibrating coming from inside and at the end of the noise when it stopped air blew out
ANSWER by , March 06, 2014
If it is the fuel pump, several vehicles are still running with noisy pump, but sooner or later it will fail, when we don't need it to.