WenmarOpen by Wenmar Pro

Service bulletins for the 1998 Chevrolet T-Series

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.

69 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
0206040602003-03-28. Service bulletin. ENGINE AND ENGINE COOLING. AUTOMATIC ENGINE SHUTDOWN FEATURE. *TT
0206030022002-06-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. *JG
0206030022002-05-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. *SLC
0206040062002-04-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. 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
000601023A2002-03-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. 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
99066D2002-03-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. 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
000604003A2002-03-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON ROUGH IDLE AFTER START UP, ESPECIALLY AFTER SETTING OVERNIGHT. *TT
8665032000-12-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SOME VEHICLES MAY SET A FALSE OBD II WITH DIAGNOSTIC TROUBLE CODE P1404. *TT
0006040142000-10-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON HARD, NO, OR SLOW START, BACKFIRE OR KICKBACK DURING CRANK / START, GRINDING OR UNUSUAL NOISES DURING CRANK, DIAGNOSTIC TROUBLE CODE P0338. *TT
99066B2000-07-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START. **MR
990782000-04-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CERTAIN VEHICLES EQUIPPED WITH DIESEL ENGINES MAY EXHIBIT ENGINE AIR INDUCTION CONTAMINATION. *TT
864306A2000-04-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. FLUID LEAK NEAR FRONT WHEELS OR FRONT ENGINE AREA. YD
9906010202000-01-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ABOUT A KNOCKING OR GRINDING NOISE WITH THE ENGINE RUNNING. *TT
9906010202000-01-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. VEHICLES MAY EXHIBIT A KNOCKING OR GRINDING NOISE WITH THE ENGINE RUNNING. *TT
866503A1999-03-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SUBJECT REGARDING OBD II DIAGNOSTIC TROUBLE CODE (DTC) P1404 (REFLASH VCM). *YC
987760021998-08-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT ON ACCESSORY DRIVE BELT NOISE DUE TO POWER STEERING PUMP PULLEY MISALIGNMENT. *YC

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.