Question about 2004 Nissan Sentra

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2004 Sentra gas cap broken

After filling up my tank a part of the cap broke off and the "lip" preventing debris is no longer there. I have looked EVERYWHERE to find out what the name of the part is and can't find out. What's the deal?

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Go to walmart buy a new one few dollors

Posted on Feb 23, 2009


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Posted on Jan 02, 2017


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Fuel leaks out and tank is not full

Remove the back seat by just pulling up on the bottom cushion hard. then look at the service cover for the fuel tank. remove that and look and see if the seal is leaking for the fuel pump aND THE HOSES ARE RIGH THERE TOO SEE IF YOU SEE GAS LEAKING. IF NOT WITH THAT ALL APART DRIVE TO A GAS STATION AND FILL IT UP AND SEE IF YOU SEE WHERE THE LEAK IS FROM.

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You may have a fuel tank vent valve that isn't working. This valve lets air into and out of the fuel tank as fuel is added to the tank and then later used by the engine. If the valve won't open or is plugged with dirt/dust/debris then it's becomes very difficult to add fuel to the tank. This problem would also cause the EVAP system to fail a self test and turn on the check engine lamp with a related service code. Often there is more than one reason a particular code like this can be set, a loose fuel cap being just one of them, and it takes a bit of testing to determine the exact cause. A good service facility should be able to test the system and determine what is wrong fairly easily on this one. Good luck, hope this helps.

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Two things come to mind. You broke the pressure seal to the fuel system when you took off the gas cap. The fresh gas rushing in disturbs any dirt or debris on the bottom of the tank.
Next time you use the car when you arrive at our destination, simulate what you do when you fuel up. This will mimic everythig except the new fuel rushing in. If it is still hard to start you know it's something to do with the evaporative fuel system. If not, you need the fuel tank inspected .

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Key no longer works in ignition. I stopped to gas up and the key I normally use would not open the gas cap door. I re-entered the car and the key would not turn the ignition. The key unlocks the steering...

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2001 Nissan Sentra "check engine soon" light comes on after gas fill up, goes out when tank is about half empty. It is not the gas cap.

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When I go to fill my gas tank on my 2004 nissan sentra it back flow....I have to pump it very slowly...can some one help me pleaas

It is likely that the screen inside is plugged with something, After gas runs down again, You can pull the feeder tube off and clean the screen.

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2004 Ford Taurus takes 15 min plus to fill fuel tank, help!

theres a problem with the pipe that goes from the gas tank to the gas cap.Look under neath and see if the hose is pinched or bent.Another cause could be who ever owned it before had the tank out and they messed up the hose when they put it back in but that is differently the problem..

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Service engine soon/gas tank issues

can you tell us the NO. of DTC when you check it by diagnoses scan tool
that is very helpful to fix the problem
so generally my be the problem in fuel tank vent pipe or the ventilation valve
that work with the (EVAP) evaporate emission control system

give us more information to help you

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