306 fuel leak
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Thread: 306 fuel leak

  1. #1
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    Default 306 fuel leak

    We have a 2001 306 Rallye which leaks fuel from around where the filler hose joins the fuel tank when the tank is more than about half full. I have cut off the original clamp from where the filler hose joins the tank (non-adjustable) and fitted a screw clamp. Even though this clamp is really tight the leak is still there. Has anyone else had this problem? I am thinking I may have to drop the tank down to see exactly where the leak is coming from. It seems unlikely that there would be a crack in the tank itself since it is thick moulded plastic.

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  2. #2
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    I think this is probably a rare problem, and agree with your diagnosis that the tank has a hairline crack. Fixing it is probaby going to be a challenge. Might pay to get another one!!
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  3. #3
    Budding Architect ???? pugrambo's Avatar
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    Quote Originally Posted by pontarriere View Post
    We have a 2001 306 Rallye which leaks fuel from around where the filler hose joins the fuel tank when the tank is more than about half full. I have cut off the original clamp from where the filler hose joins the tank (non-adjustable) and fitted a screw clamp. Even though this clamp is really tight the leak is still there. Has anyone else had this problem? I am thinking I may have to drop the tank down to see exactly where the leak is coming from. It seems unlikely that there would be a crack in the tank itself since it is thick moulded plastic.
    find out if the car was returned for a recall for this problem and see if you can still get it done if not
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  4. #4
    Fellow Frogger! paulrb's Avatar
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    Icon9 Had this problem...

    Had this problem. It can be the join, as per the recall, can also be other issues.

    Remove the inner wheel guard and wash out with a high pressure hose. You get a lot of built up road dirt under there, over the filler hose and tank breather. you can then see if you have a leak in the filler hose, or the connector.

    Mine had had the fuller replace as per the recall a few years ago, and then developed another leak...

    I found a tiny hole caused by a stone working its' way in over time. The hole had a 1mm diameter, so i chose to fix/fill it rather than replace the whole thing. I used petrol proof gasket cement to fill the hole and wrapped the whole thing in cloth tape to hold it until the gasket cement cured. Left the car for 24 hours so that fuel didn't splash into the filler pipe, and it was perfect. Over a year later... still perfect.

    But I wasn't sure where the hole was until I removed the wheel and wheel arch, climbed under the car and had my wife pour petrol in via a jerry can. Then as it began to leak, I could finally work out where the hole was. The location of my hole meant dropping the tank to replace the whole filler line. Hence why a repair was worth trying. If your leak is further up towards the filler, you might only need to separate the join and replace the top section. If it is the top section, it might be the part that was supposed to be fix in the recall. If you go to a dealer, any Peugeot dealer, they can ring Peugeot Australia who can determine if yours had been fixed or not.

    But this is definitely a known problem with this car.
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  5. #5
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    Default Thanks for the advice guys

    Thanks everyone for your advice - checked with Peugeot Australia and our car has not had the recall fix, so we will book it in with a dealer and get the work done free!
    Good result!

  6. #6
    Fellow Frogger! BradlehGordz's Avatar
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    Is this just a common problem for the Rallye? Or the GTi6 as well? Just getting a general knowledge of the GTi6 so I can look out for common problems along the way (:
    Just figured that the Rallye is just the stripped version of the 6 that they would have identical if not similar faults.
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