Thanks for having me fellas! I've been getting answers from posts here for quite a while so figured I'd join. Navigation here is still awkward for me. I run a small garage in Chickamauga ga. I have 5 blazers and 3 s-10's of my own. Friend of mine recommended I join.
I need help with a 98 4.3 60lbs.fuel pressure plummeting from Schroeder valve when the relay quits. Dead head pressure is holding 90psi. No visible leaks from pump to injectors. Pinched off return line during test and still leaks down with no leaks under upper intake or lines. Any ideas where pressure is going?

Thanks for any help and I hope I'm not violating any rules.

 

Leaking injectors, or leaking diaphragm in FPR. Pull the vacuum line going to the FPR and smell it for fuel. If no fuel smell, then leaking INJ's.

Is it harder to re-start hot, than cold?