Service bulletins for the 2004 GMC Sierra
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
927 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Fuel hoses and lines are shown. Show all
| PIP3343F | 2018-02-21. Service bulletin. COMMUNICATION; FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430. |
|---|---|
| PIP3343E | 2017-08-15. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430. |
| 3208 | 2004-12-15. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. CERTAIN 2004 6.6L LLY DURAMAX DIESEL ENGINES MAY HAVE AN ISSUE WITH THE HIGH PRESSURE FUEL LINES THAT PREVENT THEM FROM ACHIEVING THE PROPER TORQUE UPON REINSTALLATION AFTER A REPAIR. *TT |
| 01678 | 2004-06-04. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. 6.6 LLY DURAMAX DIESEL ENGINES HAVE AN ISSUE WITH THE HIGH PRESSURE FUEL LINES THAT PREVENT THEM FROM ACHIEVING THE PROPER TORQUE UPON REINSTALLATION AFTER A REPAIR. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.