Fuel Injector and Fuel Injector Bore Cleaning and Inspection
WARNING: This page is about a different variant/trim than selected.
 Courtesy of GENERAL MOTORS COMPANY
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Component Name |
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Preliminary Procedure
- Use EN-47909
cleaning kit to clean the fuel injector bores.
NOTE:
Do not soak or immerse the fuel rail or injectors in solvent.
- Clean the exterior of the fuel rail and injectors with solvent.
Special Tools EN-47909
Injector Bore and Sleeve Cleaning KitFor equivalent regional tools, refer to Special Tools . |
| 1 |
Fuel Rail Assembly
NOTE:
Do not remove the EN-51146
remover unless fuel injector replacement is necessary.
Procedure
- Inspect for damage, debris, or restrictions to the fuel rail and fuel ports.
- Inspect for damage to the mounting area for the fuel rail.
- Inspect for damage to the fuel rail mounting bolts.
- Inspect for damage to the threads on the fuel rail fuel feed fitting.
- Inspect the fuel rail pressure sensor for damage.
- Inspect the fuel injector for damage to the harness connector.
- Inspect the fuel injector tip, tolerance ring, and seal locations.
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| 2 |
Fuel Injector Combustion Seal
NOTE:
Discard the seals and use NEW seals upon installation.
Procedure
- If present, remove the calibration tool on the fuel injector tip.
- Remove and discard the fuel injector combustion seals.
- Reinspect each fuel injector tip once the seals are removed.
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