06 Hyundai Sonota Gas smell coming in through the vents when you hit a certain speed. The smell is never there until i hit 55mph. You can not smell it when the car is off. And as long as you drive above or below 55 its never there. No traces of gas on ground or around any of the fuel lines. And the gauge never seems to be lower than its suppose to be. Why would I only smell gas at a certain speed?

SOURCE: SMELLS GAS BURNS GAS

P0440-This Relates to System for Evaporative Emission.You will need to check the purge cannister that is in the engine bay and connects as a vent to fuel system and fuel tank.Loosen the fuel cap and roadtest,should change the faults or eliminate.Get back to me with your findings and we can work towards a solution.I hope that this helps.

SOURCE: Strong gas smell when weather hot- Volvo s90

Inoperative purge valve in EVAP system

SOURCE: hello my grandis loses power

fuel pump or fuel pump relay .....

SOURCE: 94 grand am Head Gasket?

Check ur spark plugs for wetness, if u have water in ur cylinders, you have a gasket problem. 94-95 grand am had a problem with intake gaskets, but my grand am also had a manufacture error on the head gasket too. The dragged the heads over it putting the heads back on and smashed the rings..

SOURCE: My gas hand has flipped around to bottom of fuel

Fuel pump!perhaps not working!sit in car turn ignition on do not atempt start or crank engine you should hear a grunt sound from back seat area like a GRRRRR if not fuel pump not working!