I had similar problem some months ago it turned out to be the pipe under wheel arch (corroded) where cap filler is.
my problem was solved by replacing pipe which is connected to rubber pipe fixed to tank and filler hose from filler cap.
tools neede llong large cross head screwdriver, small socket set ( 12 mm , 13mm , 14mm) 150 mm extension bar. to remove bracket bolts
possibly some new pipe clips as others may be corroded.
you will need to jack up car and remove wheel to gain access.
took me about 1 hr, somebody with competent DIY skills should be able to deal in couple of hrs
check with dealer as there are two different pipes on different models one is longer.
my one was the one with the piggybacked overflow pipe.
small hands are advantage
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I would double check that your fuel tank is sealed. Fuel fumes can be very bad for your health and can be very dangerous. Sounds as though the gas line may be leaking, or the fuel pump seal is leaking.
Being fuel injected, it would be spraying out if it were an external leak from the fuel pipes as they run under pressure. If definitely a petrol smell, I would check the top of the fuel tank where the pump fits- is it worse / same with a full tank?
Not to question you but is it a fuel smell or an exhaust gas smell? Reason for my question is that the rocams have a common weak spot of the exhaust flange sealing ring where the exhaust front pipe meets the manifold. They become worn and porous and start blowing under load or when accelerating as the motor tips back.
Usually, what you smell inside the car is coming thru the vent from the engine compartment. So it could be a leak around the engine or the vapor canister. Its possible the canister gets overloaded from time to time when the computer vents the gas tank to the canister. A very small leak can be a very strong smell inside the car.
Hi Paul, I cannot think of anything which would have interfered with the fuel line while fitting the caliper or pads. The fuel filter is fitted in the engine compartment against the firewall fairly low down. You may like to check and possibly replace it as sometimes the connections do leak. The other areas of concern are the seals fitted to the top and bottom of each injector, the feed connection into the fuel rail, and the return pipe to the tank. Make an inspection of all flexible pipes and joints, taking special note of all banjo bolt connections, making sure that all gasket washers are sealing correctly all the way to the tank. Regards John
Coolant smells like fuel, i think you need to find a new mechanic, obviously there is a problem around the fuel tank, does it do it all the time, what about when tank is half??? I would be checking the fuel tank breather, fill fuel right up to the top, go on a bumpy road or just do a sharp left and right (safe speed) and have a look underneath where the tank is to see if there are any wet patches, if there is a leak then you have found the problem, just need to find where the leak is. If there is no leak than i would deffinately have the breather checked out, one other thing to check would be your fuel filler cap, either way this problem should not be there and be fixed by Hyundai, it is a serious health problem!!!
Possible there is leak or a joint fault in the fill cap, the fuel tank filling hose clamp , the fuel line to the fuel pump , fuel filter.
Now since petrol is highly volatile a small gap can make the gas smell into the cabin. Please start your check from the tank to the pump and the return fuel pipe, checking for leaks which can be easily tightened or a faulty fuel line changed.
check for fuel leaks around filter or cracked gas line. best way to tell is wrap line with paper towel. run engine for a few minutes and then check towel for gas. move until you find area of leak. good luck
Gas or anitfreeze are both petrolium based prducts. Check for leaks on both. Antifreeze has a sweet smell and is either green or orange if using Dex Cool (look in resivoir to confirm color or if its low) to diffrentiate the 2.
I think you might be only intermittantly noticing it.
Check around the fuel injectors for signs of wetness as soon as you notice it again.
Failure of the metal-plastic junctions is pretty common.
Their expansion and contraction rates are different so eventually, the seal can fail.