Fuel Presure Regulator 94 Es300 Help Fast

[94 es300]

Ok guy's my Fuel presure regulator is allowing gas to enter the intake manifold. I been having starting issue's after driving the car then it sits for an hour or so. It would act as if it was flooded. I took a piece of clear vacumn hose attached it to the fuel presure regulator and then back to the vacumn rail. I drove the car for 1/2 an hour let it sit and watched the clear vacumn hose after 10mins fuel started to come out of the presure regulator go up the clear vacumn hose and go down into the intake manifold this continued for about an hour.

Is this how it is desined to work?? I think the presure regulator is bad. ?? Shoudn't the fuel be sent back to the return line.?

[Toysrme]

Replace the regulator, the diaphram is busted if it's sucking fuel in the vacuum line.

[94 es300]

Ok guy's my Fuel presure regulator is allowing gas to enter the intake manifold. I been having starting issue's after driving the car then it sits for an hour or so. It would act as if it was flooded. I took a piece of clear vacumn hose attached it to the fuel presure regulator and then back to the vacumn rail. I drove the car for 1/2 an hour let it sit and watched the clear vacumn hose after 10mins fuel started to come out of the presure regulator go up the clear vacumn hose and go down into the intake manifold this continued for about an hour.

Is this how it is desined to work?? I think the presure regulator is bad. ?? Shoudn't the fuel be sent back to the return line.?

Thanks I have ordered one. Do you know if there is a check ball or something in the regulator? Just wondering cause last night I taped on the regulator today I started the car drove around let it sit and now no fuel is going up the vacumn line and into the intake manifold. Strange isn't it. Well it getting replaced thats for sure.

[Toysrme]

inside is a diaphram with spring behind it.

the state of intake manifold pressure moves the diaphram around to keep it 37-41.5psi above manifold pressure.

[94 es300]

Here is the delima:

The Regulator stopped pushing fuel into the intake manifold.

If the Regulator had a hole in the diafram you would think it would leaking all the time?

Could there be a pressure build up causing the push back through the Regulator.

Haven't replaced the Regulator yet it hasn't arrived. I will though.

Could the charcol canistor or gas cap cause a pressure build up.?

Thoughts??????????????/