Fuel System Pressure Test: Notes
WARNING:
Begin fuel system trouble shooting and diagnosis with fuel system pressure test. Relieve fuel system pressure before disconnecting any components or installing fuel pressure gauge.
NOTE:
Fuel pressure specification on 7.4L engines should be 26-32 psi (1.8-2.2 kg/cm2
), and on all others is 9-13 psi (.63-.91 kg/cm2
).