Hi every one again
My next problem with jaguar is gasoline now.
Just put full gas tank of fuel and after couple miles I smell the gas. When I come back to my house and open gas tank cap, gas coming out from there, about 2 or 3 cups. When car on the sun couple hours and I open the cap, lot of air coming out. So it is normal or I have problem?
Thanks for any answer.

 

Like most everything gas expands with heat.Also the tank might not be venting properly.

 

How I can check the ventilation?

 

Where I can find the vacuum diagram for emission system? I don't have any fault codes, if something like purge valve is bad "check engine" light should go on right?

 

Here is some info for checking your system

bob gauff

 

Its looks impossible without couple thousand dollar tool

 

In a different thread I found jaguarclassicparts.co.uk. You will find all of the parts of the Evaporative Emmision Control System. Could the purge valve be plugged?

 

That website not work
If I have problem in the emission system light should come on?

 

Genuine Jaguar Parts and Jaguar Accessories for Classic Jaguars
I am not as skilled as many of the experts here. Maybe this will work. I am sure someone with more experience can comment about codes and lights.