fuel tank noises

1997 HYUNDAI ELANTRA
88,000 MILES • 4 CYL • FWD • AUTOMATIC
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HYUNDAI OWNER 97
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  • 1 POST
thumping noise in fuel/gas tank & hissing out of gas spout/cap
Feb 18, 2011 at 8:17 AM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
First, it is normal for the fuel tank to be pressurized to an extent. The banging isn't normal. It sounds like either the fuel pump is going bad or it has come loose. Check both. Also, if you hear a hissing without removing the gas cap, check for problems in the EVAP system.
Mar 14, 2011 at 3:39 PM
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