Silverado 2500 4WD V8-6.6L DSL Turbo (2010)
16. If necessary, remove the fuel injector bracket pins.
17. Remove and discard the copper washer from the fuel injector bore.
18. Remove and discard the O-ring from the fuel injector.
Fuel Injector Cleaning and Inspection
Note: If reusing the old injectors perform the following:
1. Use a soft bristle non-metallic brush and Top Engine Cleaner, GM P/N 1052626 or equivalent, to remove any deposits from the nozzle tip (1) and
the copper washer sealing area (2) before re-installation.
2. Inspect the fuel injector nozzle tip (1) for any signs of discoloration (dark yellow, tan or blue) due to excessive heat.
3. Replace the injector if any damage is found.
