9 to 13 LBS. No lower are higher are you will have starting and running problems.
The fuel pump is kaput.
We are going to need to know what engine it has.
It is in the throttle body.
60 to 66 psi
It is located in the throttle body.
where is the fuel pressure regulator on1991 lumina 3.1 /
38-44 psi with pressure regulator vacuum hose disconnected and plugged
50 to 60 lbs
It is important for the owner to know the fuel tank capacity of their vehicle. The fuel tank capacity of a 1991 Chevy 3500 pickup is 20 gallons.
A plugged up fuel filter, a faulty fuel pressure regulator or a faulty fuel pump.
Under the upper intake assembly
9 to 19 PSI. / LBS. NO lower are higher are you will have problems.