Fuel Injector Installation

Special Tools 

EN-45059-A  Angle Meter

Equivalent regional tools: Special Tools 

Fig 1: Cleaning Tool
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

Refer to EN-47632 Cleaning Tool Rotation Caution

1. Clean the 4 injector sealing surfaces in the cylinder head with a suitable cleaning tool (1) in the following procedure:
   1. First take the brush side to loosen the dirt.
   2. Accordingly take the sponge side to remove the dirt.
Fig 2: Fuel Injectors And Washers
Courtesy of GENERAL MOTORS COMPANY
2. Remove the closure caps from the 4 fuel injector nozzles.
3. Install NEW Fuel Injector Washers (2) (Qty: 4)
4. Install Fuel Injectors (1) (Qty: 4)
Fig 3: Fuel Injector Brackets And Bolts
Courtesy of GENERAL MOTORS COMPANY
5. Install Fuel Injector Brackets (2) (Qty: 4)
6. Install NEW Fuel Injector Bracket Bolts (1) (Qty: 4)
CAUTION:

Refer to Fastener Caution

7. Tighten Fuel Injector Bracket Bolts (1) (Qty: 4) in sequence
   1. First Pass: 10 N.m (89 lb in)
   2. Final Pass: 60 degrees, use the EN-45059-A  meter