every couple of starts (maybe 1 out of every 7) my truck takes a couple of seconds to start. normal starting takes my truck about 1-3 seconds.... but every once and a while it takes 5-8 seconds. i tried double turning the key to help prime the fuel pump and still seems to do that. tried replacing the fuel filter just in case but that didn't help. any ideas on what to look at .... going to get an actual fuel pressure reading this weekend. will post results then. any other ideas besides fuel system...oh and forgot- i did a tune up a couple of months ago and that didnt help either.