Fuel tank pressurised XKR

[BillXkr]

After driving if I go to open the fuel cap air rushes out sometimes with a spray of fuel.

I presume there is some sort of venting system that has got blocked? 
Any advice of where to find it and what to do.

I’ve replace the fuel filler cap with a temporary one from Halfords that doesn’t fit with a tight seal but obviously need to have the proper one back for a MOT.

 

Thanks for any help

[JOE-DOT-COM]

hi

there suppose to be pressurised

theres a vent valve that vents at a certain pressure, then usually through a carbon filter

it stops the fuel going off and stops vapors going to atmosphere

cheers

joe

[BillXkr]

Thanks I think mine must not be working correctly as it really goes with a rush of air and some times fuel when I open the filler cap.