My '04 Silverado Duramax LLY just broke 100K miles. It has been a great truck, but recently started something that has be a bit confused. When I park it with the front higher than the back, even slightly, it gets air into the fuel system and I have to bleed it at the filter housing to start it. If I park it with the front end lower, it starts right up.

I read several threads here including this one:

http://www.thedieselpageforums.com/t...uel+filter+air

I also took it to a shop that specializes in Duramaxes and he told me the same thing. He said that I could replace the filter housing and all would be cured. But he suggested that I install a FASS auxiliary lift pump and NOT replace the housing. I am reluctant to go blow a bunch of coin without knowing for SURE what the problem is.

Am I on the right track here in terms of the problem and should I replace the housing or just install an auxiliary lift pump?

Thanks in advance for the help....