Fuel System Pressure Test
CAUTION:
Begin fuel system trouble shooting and diagnosis with fuel system pressure check. Relieve fuel system pressure before disconnecting any components or installing fuel pressure gauge.
- Turn engine off. Disconnect fuel line at inlet to fuel filter assembly. Install low pressure fuel gauge to fuel line.
- Crank or run engine for 10-15 seconds. Fuel pressure should be between 5.8-8.7 psi (.41-.61 kg/cm2 ). If fuel pressure is not as specified, check fuel lines or fuel tank sending unit for restriction. If fuel lines or sending unit are okay, replace fuel pump.