I have to fill my tank very very slowly or fuel will come back out the filler when attempting to fill the fuel tank what,s going on..."??????
Unfortunately it's a manufacturing or maybe design fault. They all do that. It's the way the filler pipe and it's breather pipe are shaped. After the tank gets to about 9 liters before being full, the fuel covers up the breather pipe, so the air pressure builds up in the tank, compressing the air, and blowing the fuel back out the filler. It used to take about 5 minutes to fill the last 9 or 10 liters. If you do it slowly, which is difficult due to the auto switch off of the bowsers, it can be done without getting fuel all over your feet. It's a small price to pay for an otherwise great car!
Still running could be back pressure. If off could be restriction in fill line.
SOURCE: Spitting gas out
There is a sleeve in the tube that the gas nozzle goes in..Just pull it out a bit and that will let air in around the nozzle when filling up.
SOURCE: 2003 KIA Sarento - trying to pure gas in filler tubr to gas tank
your gas tank has one part the releeses fumes @kia 2004 is reecal
SOURCE: 2005 kia sorento Fuel Gauge says empty with 1/2 tank of gas.
Fuel sensor is not working well. Just changed mine today for the same problem.
I can't see the T/Belt giveing that problem however if the T/Belt is due it should be done ASAP because if the belt breaks it can cause pistons to hit valves (Very expensive to fix) but could be the catalytic converter or a number of other things. My thought would be to undo the o2 sensor in the exhaust & run car this will allow exhaust to escape without going through the catalyst. If car stops slowing to a stop you know that the catalyst is blocked. Or remove the catalitic converter & look through it it should look like honey comb you can see through. P.S your car posibly won't go without the o2 sensor in.
SOURCE: how do i replace the fuel level sensor on a 2005 kia sorento
What You'll Need:
Before you begin, disconnect the negative battery cable to be sure no electrical sparks are possible. You're dealing with gas which is highly flammable!Your fuel tank sending unit is located in the top of the fuel tank, but is accessible under your back seat (or under the carpet in your trunk) on some models. The sending unit will be protected by an access cover, usually held on with a couple of screws. Lift your back seat or trunk carpet and locate the access cover for your fuel tank sending unit. Remove the screws holding the cover in place and remove the access cover to reveal the fuel tank sending unit.
Safety Note: Gasoline is highly flammable. By removing the fuel tank sending unit, you are opening the gas tank. Be sure there are no sources of spark or flame nearby.
With the access cover removed, you'll see the fuel tank sending unit right there on top. It will have a wiring harness plugged into the top (this tells your gas gauge how much fuel is in the tank). Unplug the wiring harness and move it safely to the side. If your fuel tank sending unit is screwed or bolted in place, remove the screws or bolts. Some sending units are a "twist-lock" type. They work like the old twist-lock gas caps. You'll see a few notches along the outer ring of the sending unit. Place the tip of a sturdy flat head screwdriver in the notch and gently tap it counter-clockwise. The sending unit will rotate until it's loose. (the picture above shows the fuel tank out of the car to illustrate the fuel tank sending unit's location). Now you can remove the fuel tank sending unit in one piece. Attached to it is a long rod with a float at the end, so you might have to try a couple of different angles to get it out. As usual, installation is the reverse of removal. Don't forget to plug the new sender in or it won't send you anything!
Possible causes
- Missing or Defective Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
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