Service bulletin 3121A
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 | 10009936 |
| Published by NHTSA | 2004-11-03 |
| Manufacturer's number | 3121A |
| Manufacturer's date | 2004-01-01 |
| NHTSA component | ENGINE AND ENGINE COOLING:COOLING SYSTEM |
NHTSA's summary
EXHAUST VIBRATION RESONANCE OR MOAN 99-05 FULL SIZE TRUCKS AND UTILITY VEHICLES WITH GEN 3 V-8 ENGINES. *TC
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Engine, Cooling system
| CADILLAC ESCALADE | 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
|---|---|
| CADILLAC ESCALADE ESV | 2003, 2004 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE EXT | 2002, 2003, 2004 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SIERRA | 1999 to 2003 |
| CHEVROLET YUKON | 1999 to 2003 |
| CHEVROLET YUKON XL | 2000 |
| HUMMER H2 | 2003, 2004, 2005 |
| HUMMER H2 SUT | 2004 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 000602006 | 2005-03-10. Service bulletin. DEX-COOL ENGINE COOLANT INFORMATION. 2004 AND PRIOR PASSENGER CARS AND TRUCKS. *TT |
|---|---|
| 3121 | 2004-11-08. Service bulletin. EXHAUST VIBRATION RESONANCE OR MOAN IN VEHICLES WITH GEN III V8 ENGINES. *TC |
| 02013 | 2004-05-26. Service bulletin. COOLANT LEAK FROM HEAD CUP PLUGS ON GEN III ENGINES. *MR |
| 01339 | 2003-11-19. Service bulletin. HVAC BLOWER MOTOR FAN STAYS ON IN THE HIGH BLOWER POSITION. SERVICE VME. *TT |