whistling noise

1991 FORD MUSTANG
170,000 MILES • 4 CYL • 2WD • AUTOMATIC
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JETFAN5
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  • 1 POST
1991 mustang makes a whistling niose near gas tank when running
Feb 18, 2011 at 4:36 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Chances are you hear the fuel pump. Remove the fuel cap to see if it stops. If it does, the cap may be bad. If it doesn't stop, listen to the filler tube to see if there is noise coming from inside. If so, it is most likely the fuel pump.
Mar 1, 2011 at 4:58 PM