Removal (2.2L & 2.4L - Alero, Cavalier, Grand Am & Sunfire)
- Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Disconnect negative battery cable. Remove air cleaner outlet resonator (if necessary). Remove fuel rail bracket (if equipped). Disconnect pressure regulator vacuum hose. Remove fuel return line and "O" ring from pressure regulator. On 2.4L, remove fuel rail. See FUEL RAIL & INJECTORS .
- On all models, remove pressure regulator screws. Remove pressure regulator from fuel rail. Remove pressure regulator retainer and spacer assembly from fuel rail (if equipped). Remove fuel inlet "O" ring from pressure regulator. Remove and discard filter screen if dirty.