Having a hard time diagnosing the starting issues on my 98 5.7 silverado. when the engine is cold, it takes a while to start and usually only works on a quick turn of the key after a few attempts. last year i did a tune up of plugs, wires, cap, rotor, fuel filter, battery. of course suspected the fuel pump, so got a gauge and on the first turn of the key pressure gets to right around 60, give or take 1-2 depending on temp. if I cycle a few more times before starting, can get to 63 or so, but even at that point doesn't fire right up and takes a few attempts. anybody else had this issue? once warm it starts back up pretty quick. not sure of the most common sensor issues or regulator possibilities, or if it's usually the pump, thanks for any advice! ---------- Post added at 09:52 AM ---------- Previous post was at 09:47 AM ---------- also forgot to mention, had a friend with a shop scanner take a look and he said everything checked out, no CEL or codes to pull. also the pressure does drop slightly over time once the pump stops, but less than 1 psi per minute.