Does anyone know the reason why fuel and air blows out of my fuel cap every time I open it ?

It only happens after driving the car, even for a short journey.

I have had a new fuel tank fitted under warranty due to a split at high level resulting in a petrol leak. I have owned my 4/4 one year now and always experienced a sudden rush of air escaping when opening the fuel cap, even before the new tank was fitted. I thought this was normal with petrol cars, as my other cars have all been diesels.

I did explain this to the dealer during the new tank install, and it was told it’s all working as it should do when the tank was fitted. The rollover valve was operating as it should, but it wasn’t in the best location so the mechanic repositioned it.

Anyway, I have just returned from a short drive in this lovely weather, I opened the fuel cap and got sprayed with petrol !!

My next plan is to ring the dealer on Monday, but I just wanted to know if anyone else has experienced this ?


Last edited by Craig Jezzard69; 14/04/18 04:53 PM.

Craig Jezz