Hi guys, read but dont post much here. I have been scratching my head with my 1998 5.7, a/t, 2500HD, 4x SCLB. It wont start on 1st crank. 2nd fires nearly immediately. My brother thinks we need to pull the tank and R+R the pump. BUT I dont know for sure. On a TBI truck its so obvious. Turn key on 2x and vroom on the 3rd. This on turning the key on for a bit then cycling it again dont really help. Has to be cranked 2x. Pump or get guages? BTW filters newish and everything else appears fine. Thanks