Our 2005 Liberty V-6 hesitates to start when warm. We start and stop it often when we are out Geocaching. It chugs, so I turn it off and then try again and it starts. The engine swallowed a valve seat last month and we had the engine removed and both heads done. Didn’t stop it from the starting issue. Had it checked for codes and low fuel pressure came up. It was suggested to replace the fuel filter, but the filter is in the tank. I’ve added fuel injector cleaner and that seems to help some. Going to try turning the key on for several seconds before engaging the starter to see if that helps. I should be able to clean the screen without replacing the pump I hope.