Kenworth t600 fuel tank issue

I have a 2005 c15 Kenworth t600 having issues with diesel.

the passenger side tank empties out into driver side and truck shuts off. I open the driver side tank and it overflows and spills and passenger tank is complete empty.

I have gotten pipes cleaned the breather tube replaced and most recently they replaced the small valve and still nothing.

many help would greatly be appreciated as I’ve been stranded 4 time now do to this issue and every time I have to siphon diesel to reach a truck stop.

 

I have a 2005 c15 Kenworth t600 having issues with diesel.

the passenger side tank empties out into driver side and truck shuts off. I open the driver side tank and it overflows and spills and passenger tank is complete empty.

I have gotten pipes cleaned the breather tube replaced and most recently they replaced the small valve and still nothing.

many help would greatly be appreciated as I’ve been stranded 4 time now do to this issue and every time I have to siphon diesel to reach a truck stop.
It keeps over flowing from driver side now