NO. When a engine is running it makes it's own vacuum. That's why there is no vacuum hose on that year regulator. It is inside of the engine.
It doesn't have a vacuum line attached to the fuel pressure regulator.
there is no fuel pressure regulator " sensor ", there is a fuel pressure regulator controled by vacuum located at the front end of the fuel rail.
Fuel pressure regulator is located on the driver side fuel rail.
Stock base fuel pressure is 42 psi. This is the pressure when the vacuum hose is removed from the fuel pressure regulator. The vacuum hose must be plugged when its removed from the regulator.
At idle or deceleration.
It is located in the throttle body.
NO nothing hooks to it.
Yes, a disconnected vacuum hose on a pressure regulator will generally lead to an increase in fuel pressure. The vacuum hose helps regulate fuel pressure based on the engine's load and demand; when it's disconnected, the regulator may not receive the necessary vacuum signal, causing it to maintain a higher pressure. This can result in poor engine performance, increased fuel consumption, and potential damage to the engine or fuel system components.
The vehicle does this on its own with a vacuum operated fuel pressure regulator.
On a 2004 Chevrolet Suburban, the fuel pressure regulator is typically located on the fuel rail, which is situated on the engine, near the intake manifold. It is often a part of the fuel injector assembly and can be identified by a vacuum line connected to it. Accessing it may require removing the engine cover or other components for better visibility. Always refer to the vehicle's service manual for specific details and procedures.
you have to use a vacuum pump and aply pressure to it and if fuel goes into the regulator then its working.
The fuel pressure regulator is located right on on the fuel rail, it has a vacuum line at one end and a fuel return line.