Installation Procedure

IMPORTANT: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.

Fig 1: Locating Fuel Pressure Regulator Components - 4.3L (RPO LU3)

Courtesy of GENERAL MOTORS CORP.

Lubricate the NEW injector O-ring seals with clean engine oil.
Install the fuel injector (3) into the fuel meter body injector socket.
NOTE: Refer to Fastener Notice in Cautions and Notices.
Install the retainer (4) and the injector retainer lock nuts (2).
Tighten: Tighten the nuts to 3 N.m (27 lb in).
Install the fuel meter body. Refer to Fuel Meter Body Assembly Replacement .