Service bulletin 121202
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 | 10002749 |
| Published by NHTSA | 2003-09-12 |
| Manufacturer's number | 121202 |
| Manufacturer's date | 2002-12-12 |
| NHTSA component | ENGINE AND ENGINE COOLING:ENGINE |
NHTSA's summary
ENGINE BACKFIRES WITH SUFFICIENT FORCE TO DAMAGE THE ENGINE AIR INTAKE SYSTEM AND THE AIR CLEANER FILTER ELEMENT. CERTAIN CHEVROLET AND GMC MEDIUM DUTY TRUCKS AND SCHOOL BUS CHASSIS. *TT
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
| CHEVROLET C SERIES | 1999 to 2000 |
|---|---|
| GMC C SERIES | 1999 to 2000 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.