Fuel tank noises

Tiny
HYUNDAI OWNER 97
  • MEMBER
  • 1997 HYUNDAI ELANTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 88,000 MILES
Thumping noise in fuel/gas tank & hissing out of gas spout/cap
Friday, February 18th, 2011 AT 8:17 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,858 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.
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Monday, March 14th, 2011 AT 3:39 PM

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