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Author Topic: Overfilling your tank?!  (Read 532 times)

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Diamond Black Geezer

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Overfilling your tank?!
« on: 22 June 2019, 00:40:37 »

So here's a new thing (always learning)...

 'brimming' your tank by giving it a click 'for luck' can damage your carbon canister evap system on modern cars...

So how common knowledge is this? And if you have, how serious is it - have 'stuffed' your evap system irreperably?  :-[ ???
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dave the builder

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Re: Overfilling your tank?!
« Reply #1 on: 22 June 2019, 02:03:09 »

has anyone ever replaced a carbon canister or even given it a second thought ?
unless they throw a code for evap purge leak  ;D

I never brim a tank
usually put half a tank in my omega 40 or 50 quid depending on how low it is.
my old mum keeps her tank full and hardly ever goes anywhere  ::)
I have to ban her putting petrol in in march so it has fresh fuel for mot ,in June  :D
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TheBoy

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Re: Overfilling your tank?!
« Reply #2 on: 22 June 2019, 08:40:45 »

As a (ex)motorcyclist, I always stop at first cutoff, unless I don't believe it.  An old habit from the old days when overfilling a transit just meant it all came out at the first roundabout.
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Re: Overfilling your tank?!
« Reply #3 on: 22 June 2019, 09:32:22 »

The only people on here rich enough to fill an Omega up to the brim No longer own one, He owns a Sigmund, and a jaaaag.
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Andy B

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Re: Overfilling your tank?!
« Reply #4 on: 22 June 2019, 11:01:27 »

I always brim a car when I fill it & then to the next £pound (50p for Smarts) .... never had a problem apart from when the so call Smart specialist replaced the fuel pump/sender & reused the old seal & it leaked.  :-X
It does hurt when a ML costs over £100 to fill from the instant the light comes on   ???
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2boxerdogs

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Re: Overfilling your tank?!
« Reply #5 on: 22 June 2019, 11:21:44 »

Know exactly when to stop , easy been doing it for 48 years it's called commonsense..😀
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Re: Overfilling your tank?!
« Reply #6 on: 22 June 2019, 12:40:29 »

The only people on here rich enough to fill an Omega up to the brim No longer own one, He owns a Sigmund, and a jaaaag.

Signum owners are the poorest of the poor..... :-\ :( :)
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Diamond Black Geezer

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Re: Overfilling your tank?!
« Reply #7 on: 22 June 2019, 13:57:43 »

This is non-omega, just to clarify. It just surprised me, soon as I start googling there's a ton of info about the dangers of doing it, you'll knacker your canister, cause massive garage bills etc.

And yes the evap warning light is now on! Hope if there's any contamination in the canister it'll evaporate off in time...
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jimmy944

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Re: Overfilling your tank?!
« Reply #8 on: 22 June 2019, 14:00:50 »

I must be the only person here who has no idea what a carbon canister is / does?!  ???
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Nick W

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Re: Overfilling your tank?!
« Reply #9 on: 22 June 2019, 14:09:44 »

I must be the only person here who has no idea what a carbon canister is / does?!  ???


You're not.
But it really isn't important to how you use the car. Any car.
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Diamond Black Geezer

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Re: Overfilling your tank?!
« Reply #10 on: 22 June 2019, 14:31:50 »

It doesn't... So long as you don't contaminate the filter with petrol... Then you get worried you've buggered a car that's been back from the garage less than an hour!

I just hope it'll sort itself out, the petrol will evaporate, like I say...  :-\
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Nick W

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Re: Overfilling your tank?!
« Reply #11 on: 22 June 2019, 14:35:45 »

It doesn't... So long as you don't contaminate the filter with petrol... Then you get worried you've buggered a car that's been back from the garage less than an hour!

I just hope it'll sort itself out, the petrol will evaporate, like I say...  :-\


You know that it's supposed to be a sealed system, that vents into the engine's intake(when that's running)?
It isn't like an old car where the tank vent was a length of fuel pipe that ran up the roof pillar, turned through 180degrees, back down the pillar and emptied onto the ground
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TheBoy

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Re: Overfilling your tank?!
« Reply #12 on: 22 June 2019, 14:59:50 »

Obviously, currently, I can't brim cars due to the £99 limit at pay at pump.  They need to raise that.
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Diamond Black Geezer

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Re: Overfilling your tank?!
« Reply #13 on: 22 June 2019, 17:14:09 »

It doesn't... So long as you don't contaminate the filter with petrol... Then you get worried you've buggered a car that's been back from the garage less than an hour!

I just hope it'll sort itself out, the petrol will evaporate, like I say...  :-\


You know that it's supposed to be a sealed system, that vents into the engine's intake(when that's running)?
It isn't like an old car where the tank vent was a length of fuel pipe that ran up the roof pillar, turned through 180degrees, back down the pillar and emptied onto the ground

Ta Nick, so if petrol has got into the canister - will it 'sort itself out' or does it need taking out and purging/blowing out, then?  :-\
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Nick W

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Re: Overfilling your tank?!
« Reply #14 on: 22 June 2019, 17:45:02 »

It doesn't... So long as you don't contaminate the filter with petrol... Then you get worried you've buggered a car that's been back from the garage less than an hour!

I just hope it'll sort itself out, the petrol will evaporate, like I say...  :-\


You know that it's supposed to be a sealed system, that vents into the engine's intake(when that's running)?
It isn't like an old car where the tank vent was a length of fuel pipe that ran up the roof pillar, turned through 180degrees, back down the pillar and emptied onto the ground

Ta Nick, so if petrol has got into the canister - will it 'sort itself out' or does it need taking out and purging/blowing out, then?  :-\


How would it have got into the canister? They're usually right in the top of the tank, with somesort of valve that only allows them to work with the engine running. You'll have fuel gushing out of the filler neck and not have a problem with the evap system.


You would be far better worrying about the condition of the fuel filter.
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BazaJT

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Re: Overfilling your tank?!
« Reply #15 on: 22 June 2019, 18:31:23 »

I don't even come close to filling any of mine.Got into the habit of not having more than half a tank at a time from the days when tanks were metal with a top half and a bottom half welded together with a seam round the middle where a lot of them used to rust through and leak.
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Diamond Black Geezer

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Re: Overfilling your tank?!
« Reply #16 on: 22 June 2019, 18:46:11 »

Ta.  :y

Sorry Nick, I was just going by what a load of people are saying on the web about the 'dangers of overfilling your tank' etc... because this is a new car in the family, which was fine until we stopped, filled up, and then the evap light (of which the code had been cleared) came on as soon as I restated the car in the petrol station. Too much of a coincidence, so its either the petrol cap not sealing, causing the issue, or some excess fuel. They (Volvos) seem susceptible to it.

 :)
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Phil

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Re: Overfilling your tank?!
« Reply #17 on: 24 June 2019, 09:21:15 »

EVAP control solenoid failure is a common issue on the Z28 engine Vectra C / Signum.

Not sure what causes the fail, could be linked to brimming the tank, but the diagnosis is stop, fill with fuel (to any level) and then it takes quite a while to start
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