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Service bulletins for the 2003 GMC Sierra

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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
000601012F2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES.
UIB-1172015-08-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GENERAL MOTORS: AN OPTIONAL ENGINE BLOCK HEATER PLUG IN FOR ONBOARD AC POWER AND WITH CONTINUOUS USAGE WILL RESULT IN SHORTING OF WIRES, OVER HEATING SYSTEM, ELECTRICAL FAILURE AND COMPARTMENT ENGINE FIRES. MODEL 2003-15 EXPRESS CUT AWAY VANS, SILVERADO CHASSIS CAB, SAVANA CUT AWAY VANS, SIERRA CHASSIS CAB. *PE
SB-080604003-C2014-11-08. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). GMC/CHEVROLET: ENGINES, WITH EGR SYSTEM, HAS LEAKAGE FROM EGR COOLER ENGINE COOLANT INTO THE COMBUSTION CHAMBER. MODEL 2002-15 SILVERADO, SIERRA, 2004-09 KODIAK C4500-C5500, TOPKICK C4500-C5500, 2006-15 EXPRESS, SAVANA. *PE
PIP-4138K2011-06-08. Service bulletin. ENGINE AND ENGINE COOLING. GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE. THERE ARE MULTIPLE POSSIBLE CAUSES. *RM
PIP-4492P2011-03-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SAAB: OIL CONSUMPTION AND/OR EXHAUST SMOKE-POSSIBLE PCV BAFFLE OR LIFTER CONCERN. UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. *PE UPDATED 3/21/11. *PE UPDATED 5/9/11. *PE UPDATED 5/25/11. *PE UPDATED 06/16/2011. *KB UPDATED A SECOND TIME ON 06/16/2011. *KB UPDATED 6/27/11. *PE
SB-02-06-04-03712011-03-04. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:ENGINE. CHEVROLET/GMC: CHECK ENGINE LIGHT ON, FUEL TANK HARD TO FILL, DTCS P0442, P0446, P0455 OR P0449 SET (REPLACE EVAPORATIVE EMISSION (EVAP) VENT VALVE SOLENOID ASSEMBLY AND ADD/RELOCATE FILETER BOX USING SERVICE KIT). *PE
PIP33432008-04-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). POSSIBLE ENGINE OIL LEAK DUE TO PCV FREEZE-UP, EQUIPPED WITH THE 4.8, 5.3, 6.0, AND 6.2 V-8 ENGINES. *NJ
070572008-03-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CHEVROLET GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT - ENGINE GLOW PLUG ON CERTAIN VEHICLES WITH 6.6L DIESEL V8 (RPO LB7 - VIN 1) ENGINE & CALIFORNIA EMISSIONS (YF5/NE1) OR CLEAN FUEL EMISSIONS (VCL). CSC WAS RECEIVED. *NJ
0706010092007-06-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. DIESEL ENGINE CYLINDER HEAD GASKET MISSING THICKNESS GRADE MARKINGS. *KB
42312007-02-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE VME. SUPPLEMENT TO 00-02-35-003L. UPDATE ON NEW I-SHAFT. *KB
0306930012007-01-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC INFORMATION ON TURBOCHARGER MALFUNCTION DUE TO LACK OF ENGINE OIL FOR LBZ, LB7, AND LLY DURAMAX DIESEL ENGINE. *KB
34012006-07-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. TURBOCHARGER OIL FEED LINE KINKED OR RESTRICTED. *TT
0506040772006-03-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LACK OF POWER LU3 ENGINE) AT HIGH AMBIENT TEMPERATURES ONLY (IF NECESSARY, REPROGRAM PCM WITH NEW SERVICE CALIBRATION).*AK
0606010032006-03-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON LONGER MAIN BEARING CAP BOLTS REQUIRED FOR CERTAIN 2001-2006 LB7, LLY, LBZ DURAMAX DIESEL ENGINES. *TT
3691B2006-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GENERATION III V8 ENGINE PISTON REPAIRS. *TT
0506010342006-01-12. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE OIL LEAK AT REAR COVER ASSEMBLY AREA. *TT
0506040072005-11-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. POOR ENGINE PERFORMANCE - MISFIRE, ROUGH IDLE, STALLS, ENGINE CRANKS BUT DOES NOT RUN, SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0300 SET. *TT
0506010142005-11-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LEAK UNDER EXTREME COLD TEMPERATURES (-34 DEGREES C) (-30 DEGREES F) OR COLDER). *TT
0506040082005-11-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC TROUBLE CODE (DTC) P1172 OR P2636, FUEL GAUGE READS EMPTY, SERVICE ENGINE SOON (SES) LIGHT ON. *TT
0506040292005-11-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. FLEXIBLE FUEL (RPO L59) ROUGH IDLE, MISFIRE, MALFUNCTION INDICATOR LAMP DIAGNOSTIC TROUBLE CODE P0300. *TT
33432005-10-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL DIPSTICK UNSEATED OR OIL LEAK. *TT
33172005-10-28. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE. HARD START / NO START OUTSIDE TEMPERATURES BELOW FREEZING. *TT UPDATED 7/13/09. *PE
33142005-10-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. DURAMAX DIESEL ENGINE HARD START, NO START, STALL OF DIAGNOSTIC TROUBLE CODE P0093, P1093. *TT
33122005-10-28. Service bulletin. ENGINE AND ENGINE COOLING. NO START, HARD START, LOSS OF POWER, OR WHITE SMOKE. *TT
32672005-10-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC TROUBLE CODE P0128 OR ENGINE WILL NOT REACH OPERATING TEMPERATURE. *SC

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