Removal Procedure

WARNING:

CAUTION:

When working on the fuel rail and fuel injectors, always maintain a clean work surface. Failure to maintain a clean work surface can result in contaminant on the injector seals and cause leaks.

Remove Fuel Injection Fuel Rail Assembly Removal and Installation

Fig 1: Plate, Bolts And Supports

Courtesy of GENERAL MOTORS COMPANY

NOTE:

The EN-51146 - 2 - 5 calibrations tools must be installed.

Remove the 8 plate bolts (1) and remove the EN-51146-1-2 plate (2), counterhold with a wrench (4) at the EN-51146-1-1 supports (3).
Remove the 8 EN-51146-1-1 supports (3).

Fig 2: Fuel Injection Fuel Rail, Fuel Injector And Wiring Harness

Courtesy of GENERAL MOTORS COMPANY

Disconnect Fuel Injector Wiring Harness (2)
Remove Fuel Injector(3)@Fuel Injection Fuel Rail(1)

Fig 3: Fuel Injector And O-Ring

Courtesy of GENERAL MOTORS COMPANY

Remove O-Ring (1) @Fuel Injector (2) and DISCARD

Cleaning Procedure

Clean the fuel injector bores. If the fuel injectors will be reused, clean the fuel injectors. Fuel Injection Fuel Rail Assembly Removal and Installation .
Inspect the NEW fuel injector. Fuel Injection Fuel Rail Assembly Removal and Installation .