Running fuel pressure at idle should be high 30s to lower 40s. Ideally 41-44.
31 gallons main fuel tank.
Look on top of the engine at the inlet side of the fuel line from the fuel tanj and you will fine a Fuel Pressure Regulator. have it checked. It sound like it is stuck open. It is suppose to open and close to regulate the proper pressure to each of the fuel injectors.
31 gallons give or take
31
31-36 psi
31 Gallons
31 US gallons.
Mounted on top of the tank.
31 psi
31 gallons per owners manual
It holds 31 gallons.
The full fuel tank capacity on a 2005 Chevy Suburban is 31 gallons. It averages 16 mpg.