My 1993sable won't start has new fuel pump and new fuel 1ilter new fuel pressure regulator and no pressure on the fuel rail but it will start if you use starting fluid and run fine all day long?

Answer 1

try changing the fuel pressure regulator which is located on the front fuel rail. when you put the new one in make sure you put some lubricant on the o ring to keep from damaging it.

Make sure the vacuum hose going to the fuel pressure regulator is good. The vacuum hoses wear/collapse and break - they can start acting up with just a leak and intermittent problem, but ultimately break all the way => no-start.