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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Engine Controls And Fuel - 5.3L (L83) Or 6.2L (L86) - Repair Instructions >> Repair Instructions >> Fuel Injector Replacement

Fuel Injector Replacement

Fig 1: Fuel Injector
GM3285274Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary Procedure 
Remove the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 1 , and/or Fuel Injection Fuel Rail Assembly Replacement - Bank 2 .
Special Tools 
EN-51097  Injector Retaining Clip Installer
For equivalent regional tools. Refer to Special Tools .
1 Fuel Injector Retainer
Procedure 
Remove and discard the fuel injector retainer clips by installing EN-51097 injector retaining clip installer and spreading both sides of the clip evenly.
2 Fuel Injector Collars
NOTE:

Always use NEW fuel injector collars supplied with injector when installing the new injector. If reinstalling the injector, it is not necessary to remove the collars unless the collars are being replaced.

3 Fuel Injector
Procedure 
Replace the injector seals as needed. Refer to Fuel Rail and Injectors Cleaning and Inspection .
NOTE:

Inspect the injectors to be sure that they are clean and free of debris prior to installation. Do NOT lubricate the injector seals. Rebuild the fuel injectors whenever the injector has been removed from the fuel injector rail.