I didn't respond to this suggestion because I already ruled this out. The tester has a bleed port and pressure returns to the 39-40psi after discharging. The fuel pressure is making it past the shrader valve.
No the core is still in place.
I decided to pressurize intake system to see if there were any leaks. The pcv system is leaking badly and all of the pressure was blowing out the driver side valve cover oil fill hole.
I blocked off the pcv that goes into lower rear of intake manifold and...
I applied air pressure and the fuel pressure increased.
The fuel pressure gauge is brand new and I have it screwed into the shrader valve. Whenever the vacuum was applied with the mighty vac, I was expected the pressure to decrease but it didn't.
Okay, I will check lines again tomorrow. The end that plugs into the regulator has strong vac.
I even hooked the mitey vac to pull vacuum on the regulator. It did not affect fuel pressure.
My 87 GN is not building boost so I am going through it to check the basics. Haven't seen it going over 1-2psi with my analog boost gauge.
Fuel pressure at idle (w/ vac line attached) : 39-40psi
Fuel pressure at idle (w/0 vac line) : same
Should the pressure drop whenever the vacuum is...
I have a CK performance tranny with low miles and it has leaked ever since it was installed. The pan area was wet so I replace the pan gasket. Still leaks....
Saw a pooled up area on the driver side of the tranny (see pic). Is there an o-ring that seals around this connector?