Cleaning and Inspection Procedure - Conditional

WARNING: This page is about a different variant/trim than selected.

NOTE:

The following cleaning and inspection and/or overhaul steps are ONLY to be performed as determined necessary based on the condition of the part being removed with the intention of reinstallation. The labor time to perform any of these steps is not included in the base labor time and if required would need to be documented and submitted as Other Labor Hours for warranty claim reimbursement. A description of the repairs performed must be documented in the technician correction comments.

Courtesy of GENERAL MOTORS COMPANY

NOTE:
DO NOT soak or submerge the fuel rail or injectors in solvent.

Clean the exterior of the high pressure diesel fuel injection rail (4) and high pressure diesel fuel injectors in solvent.
Inspect the high pressure diesel fuel injection rail (4) and components for the following conditions:
1. Damage, debris, or restrictions to the high pressure diesel fuel injection rail (4).
2. Damage, debris, or restrictions to the fuel ports (2) at the high pressure diesel fuel injection rail (4).
3. Damage to the mounting area or threads on the high pressure diesel fuel injection rail (4).
4. Damage to the holes of the high pressure diesel fuel sensor (1) and fuel pressure regulator (3).