Service bulletin 990601020
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 | 6088933 |
| Published by NHTSA | 2000-01-11 |
| Manufacturer's number | 990601020 |
| Manufacturer's date | 1999-10-01 |
| NHTSA component | ENGINE AND ENGINE COOLING:ENGINE:GASOLINE |
NHTSA's summary
VEHICLES MAY EXHIBIT A KNOCKING OR GRINDING NOISE WITH THE ENGINE RUNNING. *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 S SERIES | 1998 |
|---|---|
| CHEVROLET T SERIES | 1998, 1999 |
| GMC S SERIES | 1998 to 1999 |
| GMC T SERIES | 1998, 1999 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 030604014 | 2003-04-15. Service bulletin. OIL PRESENT AROUND TURBO AREA, OIL LEVEL LOW, OIL PRESSURE GAUGE MAY DROP. *TT |
|---|---|
| 020604060 | 2003-03-28. Service bulletin. AUTOMATIC ENGINE SHUTDOWN FEATURE. *TT |
| 020601024 | 2002-10-09. Service bulletin. ON CERTAIN VEHICLES, SUCH AS THE CHEVROLET AND GMC WT 5500 MEDIUM DUTY TILT CAB MODELS, THE ENGINES MAY EXPERIENCE ROCKER ARM DAMAGE OR ROCKER BRIDGE DAMAGE FOLLOWING OVERHAUL OF THE CYLINDER HEAD IF THE VALVE BRIDGE STUD INSTALLED DEPTH IS INCORRECT. *TT |
| 020603002 | 2002-06-10. Service bulletin. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. *JG |
| 020603002 | 2002-05-21. Service bulletin. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. *SLC |
| 020604006 | 2002-04-02. Service bulletin. SOME CUSTOMERS MAY COMMENT ON SERVICE ENGINE SOON LAMP ON, MALFUNCTION INDICATOR LAMP ILLUMINATIONS INTERMITTENTLY, DIAGNOSTIC TROUBLE CODE SET, BLOWN FUSES, AND ENGINE WILL NOT START. *TT |
| 000601023A | 2002-03-25. Service bulletin. INFORMATION USED WHEN DIAGNOSING NOISE CONDITIONS SUCH AS ENGINE RATTLE NOISE, SPARK KNOCK AT 2000 - 2500 RPM RANGE, UNDER A MODERATE TO HEAVY LOAD WITH A WARMED UP ENGINE. *TT |
| 99066D | 2002-03-25. Service bulletin. SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE ORHARD START DUE TO A DEPOSIT BUILD-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INUJECTOR (SCPI) POPPET VALVE(S). *TT |
| 000604003A | 2002-03-22. Service bulletin. SOME CUSTOMERS MAY COMMENT ON ROUGH IDLE AFTER START UP, ESPECIALLY AFTER SETTING OVERNIGHT. *TT |
| 010602011 | 2002-02-15. Service bulletin. INFORMATION REGARDING CHEVROLET AND GMC 6-7F MEDIUM DUTY TILT CAB MODELS WITH ISUZU DIESEL ENGINE, ENGINE OVERHEATS, TEMPERATURE GAUGE READS HOT, AUDIBLE WARNING ALARM SOUNDS, AND CHECK GAUGE LAMP ON. *YH |