air in fuel?

[layne]

well,i cleaned the filter housing real well and ran it for acouple more days ....... sure as @%$# right where the mounting base and the canister come together it is stained with fuel. not even enough to make your finger wet but it is fuel and it is on the wrong side of the housing(the outside).this is enough to cause problems? I had the same set up on our pete,but it got replaced with a metal unit.wasn't sure why at the time but now i know. my next question: do things like air intrusion,in need of egr tune up,bad injector,failing check valves,fuel solenoid issue ,,,have overlapping symptoms?so far my experience is yes and i'm strting to think its time to start shopping for diagnostic tool(s).if i'm not interested in changing parameters which system is best ?