2002 Hyundai Elantra Q&A

2002 Hyundai Elantra Question: When putting gas in the tank, it backs up the fill tube and kicks off the pump.

This problem is getting worse with each fill up. I now have to run the pump at the slowest possible rate and it still backs up and kicks off. Is it clogged or a venting issue or some filter that needs replacing? -
Answer 1
its a venting issue,poss evap or vent hose causing problem. seek diag from a good mech -