Hi, I'm new to the forum. My 2003 Partner 1.4 LPG gasoline vehicle was running late in the morning. I noticed a loss of pressure in the fuel hose, but there were no leaks anywhere. After confirming the return valve was fine, I thought it was the fuel pump and bought a new one. When I opened it for replacement, I noticed a hole in the ribbed hose between the pump and the outlet in the tank. This is where fuel was supposed to flow into the tank. I simply replaced the ribbed hose, and the problem was solved. If there's a loss of pressure in the fuel line and no leaks, this section inside the tank can be checked. Wishing everyone safe travels.
Arslanalp2000