Fuel System Pressure Test
WARNING: This page is about a different variant/trim than selected.
CAUTION:
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. See FUEL SYSTEM PRESSURE RELIEF under A-7, BASIC FUEL SYSTEM CHECKS (GASOLINE).
- Turn engine off. Disconnect fuel line at inlet to fuel filter assembly. Install low pressure fuel gauge to fuel line.
- Crank or run engine 10-15 seconds. If fuel pressure is not 5.8-8.7 psi (.41-.61 kg/cm2 ), check fuel lines and fuel tank sending unit for restriction. If fuel lines and sending unit are okay, replace fuel pump.