Technical 2003 Mk2 Punto Mia - Fuel Leak / Dripping

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Technical 2003 Mk2 Punto Mia - Fuel Leak / Dripping

Nosoi

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Hi all,

I am looking for a bit of advice. My 2003 Mk2 Punto Mia has recently started dripping petrol near the right rear wheel (in the area below the petrol cap). I first noticed this after a fairly longish trip back from the Coventry area back down to Kent, most of which was spent driving through the driving rain on the M1. It seems that once the car comes to a stop, it starts dripping petrol from that area and by the end of a working day, there is a dried patch of petrol on the ground. I've attached a photo to show - it was a bit wet yesterday, but you can see the patch of petrol.

When I first noticed this, I took it down to my local mechanic and he thought it could be one of two things - either the fuel filler neck or the fuel tank. Of the two, the cheaper option to try and remedy this was the fuel filler neck (about £100 for the new part from Fiat, as opposed to the £500 for a new tank). At this point, my petrol level was quite low (maybe a quarter of a tank or a bit less) and had actually stopped dripping at this point. I didn't fill it up before it got repaired, but after the work had been done, it wasn't dripping petrol any more and I assumed all was fine.

However, I filled up on petrol again and a few days later, it seems to be doing the same thing - and potentially at the same level of fuel (around half a tank this time). It's exactly the same issue once again and the new filler neck seems to make no difference. I'm going to get the car back to the mechanic to check this out, but as it's doing exactly the same as what it did before, I feel like it's just the same problem. I think the petrol is reaching a certain point in the tank and then leaking, but before I go for a new tank (probably from a breakers yard, rather than blowing £500+ on a car barely worth twice that), I wanted to see if anyone on here could think of anything else it could be apart from a new tank.

Does this sound like it needs a new fuel tank? Is it possible, for example, that there is simply something loose or it could be another part? If anyone has any opinions or advice, all would be welcome.

Thanks in advance.
 

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Take the wheel off and check the 2 pipes from the filler cap.

I had exactly the same problem and mine turned out to be the fuel breather pipe had a small hole. If i filled the car up to a quatre of a tank or below the car would be fine. If i filled it up past a quatre then it would drop leaving a patch on the floor.

I simply glued and wrapped the breather pipe where the whole was and it was cured.
 
Thanks for the suggestion SouLz. Sounds like you had a very similar issue.

I'll get my mechanic to look at this when he checks it all out and go from there. Obviously, a solution like this would be much cheaper and preferable to getting another fuel tank - particularly if there is nothing wrong with it.
 
I hate this attitude of mechanics of 'it's either this or that, so I'll change one and see what happens' If you don't know the fault then don't take on the repair.

In truth you've already paid the mechanic to fix the fault £100, if he did fix the fault then he is still liable to repair the fault for which he charged you, and for no additional cost.
 
i've got a similar problem with petrol leaking on a 52 plate active. It looks to me like the leak is coming from the pipe at the front, with a jubilee clip.

IMAG0489.jpg


any ideas on how to fix this? was just going to replace the jubilee clip or should i get a new piece of piping?
 
managed to get to a pit today and the leak is actually the pipe that is leaking (managed to dry it properly and see it coming from the pipe).

Can anyone tell me the name of this pipe and how cheap/expensive it is to replace.
 
bump. Can anyone help? Need to get it ordered so i can fit it this weekend. Also, does anyone know where it runs to (presumably the engine) and how to fit it? if not i will have a look in the Haynes tonight
 
If the pipe is black - it run to the engine yes

If its blue - it the fuel return via the Carbon filter on the driver side

Ziggy

Thanks Ziggy any idea of the name of the pipe? It is the black one at the front of the picture
 
any ideas on the name of the pipe/where exactly it runs to would be amazing as i need to get it ordered asap
 
Take the wheel off and check the 2 pipes from the filler cap.

I had exactly the same problem and mine turned out to be the fuel breather pipe had a small hole. If i filled the car up to a quatre of a tank or below the car would be fine. If i filled it up past a quatre then it would drop leaving a patch on the floor.

I simply glued and wrapped the breather pipe where the whole was and it was cured.

I have the exact same problem. How can I do a quick fix for the pipe? Will it work if I wrap it in duct tape?
 
I have the exact same problem. How can I do a quick fix for the pipe? Will it work if I wrap it in duct tape?

I would replace it because fuel is very dangerous. If its leaking in a garage for example and there is a source of ignition cigarette butt for example you will be in serious trouble just for the sake of replacing.
 
It doesn't leak now as I only fill up petrol to half tank. If I fill it above half a tank then it will start to leak once the engine is switched off.

I was hoping to find a way to patch up the hole as I find there's a slight smell of petrol around the car.

I live in Singapore and based on the government regulations here, cars can normally be used for up to 10 years only. This one is currently at 9 years, hence that's why I'm looking for a quick fix to last for the final year.

I went to a workshop before but they told me they did not have the part in stock and the best they could do is to remove the pipe and measure it, then look for a pipe that's similar and use that to replace it. I didn't like the sound of that, so didn't proceed to get it fixed.
 
It doesn't leak now as I only fill up petrol to half tank. If I fill it above half a tank then it will start to leak once the engine is switched off.

I was hoping to find a way to patch up the hole as I find there's a slight smell of petrol around the car.

I live in Singapore and based on the government regulations here, cars can normally be used for up to 10 years only. This one is currently at 9 years, hence that's why I'm looking for a quick fix to last for the final year.

I went to a workshop before but they told me they did not have the part in stock and the best they could do is to remove the pipe and measure it, then look for a pipe that's similar and use that to replace it. I didn't like the sound of that, so didn't proceed to get it fixed.

what?
 

Yup, that's how it works here. Hence this car is going to be scrapped in 1 year and that's why I'm looking for a quick fix that is sufficient to last a year.

Just some background, to renew the vehicle certificate for my car for another 10 years, that currently costs about 30k pounds (!!). So most people would rather scrap the car and top up 10-20k pounds to get a brand new car.

That's how the Singapore government controls the car population over here :bang:
 
what the ****

i thought u were ****in around but its true, thats the biggest fail i ever heard in any country LOLOLOLOLolo!



18:51 that car on right is older than 10 years for sure so he paid 50k just to buy it and another 50k cuz its more than 10 years old?
 
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The Toyota Crown is actually a taxi, so it's owned by a company and not a private vehicle.

Basically a lower end car will cost about 50k pounds and you can use it for 10 years. After that you can either scrap it or renew it for another 10 years for 30k, or buy another new car for 50k. It's called a Certificate of Entitlement: hxxp://en.wikipedia.org/wiki/Certificate_of_Entitlement

Anyway, still looking for an answer on how I can patch up the fuel pipe. I'm hoping it will help with the fumes. Even after patching it I don't intend to fill up over half a tank.
 
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