The 4.3L engine in 2002 should have 60 to 66 psi of fuel pressure.
On the poppet bank under the upper intake manifold.
Inside the fuel tank.
Probably a faulty fuel pump.
probably no because Chevy changed the type of fuel injection and it probably operates at a different pressure.
60 to 66 psi.
Fuel pressure test.
It is most likely on the fuel pump
The mechanical fuel pump regulates the fuel pressure. This truck is not fuel injected. It has a carburetor.
60 to 66 psi
41 to 47 psi.
It is in the throttle body.
how do u replace fule pressure regulator in 94 blazer vortec