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Service bulletins for the 2004 Chevrolet Avalanche

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.

766 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
30872004-12-17. Service bulletin. ENGINE AND ENGINE COOLING. CRANK NO START, STALL, HARD START, AND NO CRANKING RPM. *EH
31932004-12-04. Service bulletin. ENGINE AND ENGINE COOLING. EXCESSIVE OIL CONSUMPTION. *EH
30562004-11-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT
31212004-11-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. EXHAUST VIBRATION RESONANCE OR MOAN IN VEHICLES WITH GEN III V8 ENGINES. *TC
31072004-11-05. Service bulletin. ENGINE AND ENGINE COOLING. P0420 AND P0430 DTSC IN THE DETROIT, MICHIGAN AREA WITH GEN III V-8 ENGINES. *SC
31192004-11-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. ENGINEERING INVESTIGATION - CATALYTIC CONVERTER REPLACEMENT. *SC
31212004-11-04. Service bulletin. ENGINE AND ENGINE COOLING. EXHAUST VIBRATION RESONANCE OR MOAN. (2004-2005 GMC DENALI) *SC
30552004-10-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT WITH A P0300 MISFIRE DUE TO MISFIRES MAINLY ON CYLINDER 7. *TT
3022A2004-10-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 04 FULL SIZE TRUCKS AND UTILITIES WITH VIN G, N, T, V AND U ENGINES MAY HAVE A HIGH ALTITUDE, HIGH AMBIENT TEMPERATURE STALL. *TT
30872004-10-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CRANK NO START WITH NO CRANKING RPM SPARK OR INJECTOR PULSE. *TT
30862004-10-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. WHISTLE NOISE FROM THE THROTTLE BODY AREA ON LIGHT THROTTLE ACCELERATION ON VEHICLES WITH GEN III ENGINES AND ELECTRONIC THROTTLE. *TT
30252004-08-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 04 MODEL YEAR 4.8.5.3.7.6.0 GEN III ENGINE PISTON PIN INFORMATION. *MJ
30182004-08-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE CYLINDER HEAD CUP PLUG COOLANT LEAK. *MJ
15300762004-08-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VEHICLES AND HUMMER H2 WITH A HIGH ALTITUDE STALL. *MJ
013532004-07-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION. *TT
020542004-07-09. Service bulletin. ENGINE AND ENGINE COOLING. ELIMINATION OF LOW COOLANT MESSAGE FROM DIC. SERVICE VME. *TT
015862004-07-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 8.1L CHANGES IN HEADS, BOLTS AND GASKET FOR FOR 2004 1/2 ENGINES. VARIOUS MODELS INCLUDING THE CHEVROLET AND GMC 2500HD/3500 MY2001-2004 AND 2001, 2002, AND 2003 GMT 560. *MJ
002662004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOSS OF POWER, HESITATES ON ACCELERATION ON 4.8, 5.3 AND 6.0 ENGINES COUPLED WITH THE 4L60E OR 4L65E TRANSMISSION. *TT
019722004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ERRATIC OIL PRESSURE GMT 610 OR GMT800 WITH CODES P0522 OR P0523. *TT 01972A REPLACED AND UPDATED 01/01/04. *SC
020132004-05-26. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. COOLANT LEAK FROM HEAD CUP PLUGS ON GEN III ENGINES. *MR
030605008B2004-03-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. ADVANCE SERVICE INFORMATION - EXHAUST SYSTEM POPPING/SNAPPING NOISE WHEN VEHICLE IS HOT, AT IDLE OR IMMEDIATELY AFTER VEHICLE IS SHUT OFF. *TT BULLETIN 03-06-05-008, DATED 11/01/2003 REPLACED. *TT
0306040602004-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON NEW SPARK PLUGS AND GAPPING. VARIOUS MODELS INCLUDING PONTIAC GTO 2004. *TT
0306010232003-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. HIGHER THAN EXPECTED OIL CONSUMPTION <8500 GVW. VARIOUS MODELS INCLUDING 2003-2004 CHEVROLET KODIAK (C4500-C5500 SERIES MODELS)AND GMC TOPKICK (C4500-C5500 SERIES MODELS). *TT
030603001A2003-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. STARTER CRANKS AFTER KEY IS RELEASED (NORMAL CONDITION). *TT
00634A2003-11-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GEN III ENGINE NOISE AFTER HOT SOAK RESTART. *TT

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