I have a 95 ranger 2wheel drive 4.0 5 speed manaul. my truck is having problems starting after sitting a while.

i have recently put a new computer in because the last one failed, which was the thought at first of it not starting. we put in a new one and it still wouldn't go. Also has a new fuel pump, fuel filter, new control relays, new IAC, new coolent temp sensor. i haven't tried the crankshaft sensor yet, but i haven't seen any improvement in the starting.

it almost seems like it is building pressure and it will the start right away after the fuel pump is running for awhile. once it starts you can turn it off and it fires up right away. the truck runs great when it starts, never bogs down or anything.

anyone have any ideas???