Cleaning and Inspection Procedure - Required
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
- Clean the fuel injector bores.
- NOTE:
DO NOT soak or submerge the fuel rail in solvent.
Clean the exterior of the fuel rail (1) with a clean cloth and solvent.
- Inspect the fuel rail and components for the following conditions:
- Damage, debris or restrictions to the fuel rail
- Damage, debris or restrictions to the fuel ports in the fuel rail
- Damage to the mounting area for the fuel rail
- Damage to the fuel rail mounting bolts or mounting bolt grommets/isolators
- Damage to the threads on the fuel rail feed fitting
- Damage to the threads in the fuel pressure sensor bore
- Damage to the fuel pressure sensor connector, threads, or sealing face
- Inspect the fuel injection fuel rail pressure sensor for damage.
- Dry the fuel pressure sensor bore in the fuel rail with a lint free cloth.
- Inspect the fuel pressure sensor bore in the fuel rail. The bore should be free of fuel, debris, and burs.
- Lubricate the fuel pressure sensor bore in the fuel rail with one drop of clean engine oil.
- Lubricate the threads and sealing area on the fuel injector fuel rail pressure sensor with one drop of clean engine oil.