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Petrol smell near carbon canister (EVAP)

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Old May 17th, 2019, 13:23   #21
Clan
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Hi,
I had the identical problem to Musicus of the split hose on top of the carbon canister. Whilst replacing that hose certainly reduced the smell, it didn't eliminate it, and my EML continues to shine yellow. As his picture shows, there is a 3rd outlet on the canister with no pipe attached to it. Is this correct? My S40 is the same, and I wondered if there was a hose connecting to something that should be there but isn't.
yes that vent pipe is normal . i have seen this problem before and the carbon canister was full of fuel effectively blocking it up . I can only assume this happened when the tank was over filled to the top on a cold evening , and the following day the outside temperature went up to 30+ C or so . The fuel has to expand and over 5 litres can be expelled into the breathing pipes and canister .
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Old May 18th, 2019, 23:58   #22
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Thanks Clan. Does that ruin the charcoal, or might the problem clear over time? I've only driven the car about 50 miles since replacing the pipe, and the smell is fairly slight now, but still detectable.
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Old May 19th, 2019, 09:03   #23
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Thanks Clan. Does that ruin the charcoal, or might the problem clear over time? I've only driven the car about 50 miles since replacing the pipe, and the smell is fairly slight now, but still detectable.
It saturates the charcoal with fuel blocking the breather so a new unit is the answer .
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