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Thread: Pressure in Fuel Tank

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    Default Pressure in Fuel Tank

    Assalam-o-Alikum.

    Dear members, I have recently bought Cultus. From pas few days, while opening the fuel tank cap, pressure is released. The same was never occured previously.

    Please guide in this regard.


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    Default

    AFAIK, due to movement of fuel in tank and the heat absorbed from surroundings, the fuel slowly vaporizes. This vapor creates pressure in tank. There is usually a vent hole somewhere near the cap so you should check if it is blocked or clogged with dust or something else.

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    Default

    normal
    nothing to worry about
    Life is short and very unpredictable just like a Quarter mile .....

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    Default Pressure in Fuel Tank

    The vapors of un burnt carbon is harmful for the environment. Hence the charcoal canister is provided the to absorb them in euro compliant cars. It is located in The fuel tanks.

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    is it pressure or suction?
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    Quote Originally Posted by Xulfiqar View Post
    is it pressure or suction?
    While filling petrol it came out.


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    Quote Originally Posted by aa78 View Post
    AFAIK, due to movement of fuel in tank and the heat absorbed from surroundings, the fuel slowly vaporizes. This vapor creates pressure in tank. There is usually a vent hole somewhere near the cap so you should check if it is blocked or clogged with dust or something else.
    I am not able to locate it? I am new to cars.


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    Quote Originally Posted by hash4u View Post
    normal
    nothing to worry about
    Isn't it's dangerous for car n passangers?


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    Quote Originally Posted by omairomer View Post
    Isn't it's dangerous for car n passangers?


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    no
    relax

    just imagine u r opening a chilled can of coke
    Life is short and very unpredictable just like a Quarter mile .....

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    its normal nothing to worry about.
    Two of the best quotes of Punjabi : 1. Rull tan gae aan! Per Chass aa Gae ai!, 2. Gal Pya Dhol Ty Wajana Penda ay.

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    under the car is a one way vent valve for the tank, it usually gets clogged with dirt, clean it out. If its a euro II or something like that it may have a charcoal canister and vent, in which case the canister acts like a vapor trap and can be either pressure regulating or vacuum assisted depending on how much "emmissions compliant" suzuki are.
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    Name:  ImageUploadedByPW Forums1444901694.771922.jpg
Views: 249
Size:  159.9 KB What is this black thing in Engine Compartment.


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    Quote Originally Posted by omairomer View Post
    Name:  ImageUploadedByPW Forums1444901694.771922.jpg
Views: 249
Size:  159.9 KB What is this black thing in Engine Compartment. Sent from my iPhone using PW Forums
    charcoal canister
    BReady GReddy I'm the way. //TRD wheels are burning all night & day��..


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    Quote Originally Posted by omairomer View Post
    Name:  ImageUploadedByPW Forums1444901694.771922.jpg
Views: 249
Size:  159.9 KB What is this black thing in Engine Compartment.


    Sent from my iPhone using PW Forums

    charcoal canister
    BReady GReddy I'm the way. //TRD wheels are burning all night & day��..


    "life begins at 8000rpms" - Blacktop 20v

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    Default Pressure in Fuel Tank

    @Xulfiqar Is breather vent their?


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