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Throttle Body Injector

NOTE: Use care in removing injector to prevent damage to electrical connectors, fuel filter and nozzle. Injector is serviced only as unit.
  1. Remove throttle body cover and leave cover gasket in place. Using screwdriver and fulcrum, carefully pry injector out. Remove small "O" ring from nozzle end of injector. See Fig 1 .
  2. Carefully rotate injector fuel filter back and forth to remove fuel filter from base of injector. Remove and discard throttle body cover gasket. Remove large "O" ring and steel back-up washer from top counterbore of throttle body injector cavity.
Fig 1: Throttle Body Fuel Injector Removal
G5385Courtesy of GENERAL MOTORS CORP.