Service bulletin PIT4979C
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10112597 |
| Published by NHTSA | 2017-08-15 |
| Manufacturer's number | PIT4979C |
| Manufacturer's date | 2012-11-21 |
| NHTSA component | FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, GASOLINE |
NHTSA's summary
This Preliminary Information communication provides information to the technician about vehicles that have a buzz or rattle type noise during light acceleration around 1200-2000 Revolutions per minute. Technician will need to reposition the fuel line and bracket down away from the floor pan.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Fuel system, Fuel hoses and lines
| CADILLAC ESCALADE | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
|---|---|
| CADILLAC ESCALADE ESV | 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE EXT | 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET AVALANCHE | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| CHEVROLET SILVERADO | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| CHEVROLET SUBURBAN | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| CHEVROLET TAHOE | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| GMC SIERRA | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| GMC SIERRA DENALI | 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| GMC YUKON DENALI | 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON DENALI XL | 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL | 2007, 2008, 2009, 2010, 2011 |
| GMC YUKON XL | 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| PIP5596 | 2018-11-13. Service bulletin. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation. |
|---|---|
| PIP3343F | 2018-02-21. Service bulletin. 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. 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. |
| PIP-4942-B | 2014-10-16. Service bulletin. GMC/CHEVROLET: AT BOTTOM OF FLYWHEEL HOUSING, A LEAK IS FOUND, CAUSING A FUEL ODOR, DUE TO HIGH PRESSURE PUMP TO HIGH PRESSURE LINE FITTING OR FUEL RAIL CONNECTION. 2010-2015 EXPRESS, SIERRA, SAVANA, SILVERADO. *PE |
| PIP-4942 | 2011-10-03. Service bulletin. CHEVROLET/GMC: AT HIGH PRESSURE PUMP TO HIGH PRESSURE FUEL LINES THERE ARE SIGNS OF FUEL LEAKAGE AND/OR FUEL ODOR. *PE UPDATED ON 5/2/2012. *KB |