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Service bulletins for the 2004 GMC Envoy

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.

744 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
30182004-08-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE CYLINDER HEAD CUP PLUG COOLANT LEAK. *MJ
0406030052004-08-13. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE. PROPER CONNECTION INFORMATION TO AVOID BLOWN 125 AMP FUSE AND VARIOUS INTERIOR ELECTRICAL SYSTEM CONDITIONS WHEN JUMP STARTING VEHICLE. *TT
0406010032004-08-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON 2ND DESIGN BALANCER HUB. *TT
0406010152004-08-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NEW DESIGN OIL PICK UP TUBE AND FRONT COVER. *MJ
013532004-07-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION. *TT
02064A2004-07-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. A DIM SERVICE ENGINE SOON (SES) LIGHT MAY BE NOTED WITH THE IGNITION KEY IN THE ACCESSORY POSITION. *TT
021292004-07-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ROUGH IDLE OR IDLE SHAKE AT TIMES. *TT
00156A2004-07-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.2L LL8 ENGINE ROUGH IDLE - RUN POSSIBLE P1345 OR P0016. *MJ *TT
016722004-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL PAN DRAIN PLUG THREADS - INFORMATION. *TT
020232004-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT NO CRANK NO START. SECURITY LIGHT MAY BE ON OR OFF. 4.2 LL8 ENGINE. *NM
00411D2004-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LACK OF POWER AND ENGINE LIGHT ON (03-04 GMT 800,820 AND 830). *NM
016762004-06-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. 4.2 4L60E ENGINE COOLING FAN CONTACTS SHROUD AFTER REPLACING RADIATOR. *MR
017622004-04-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.2 LL8 ENGINE ELECTRONIC POWERTRAIN CONTROL MODULE (PCM) RESTRICTION. *MR
017462004-04-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.2 5.3 LL8 LM4 ENGINE WITH DIAGNOSTIC TROUBLE CODE P2120 OR P2122 OR P2123 OR P2127 OR P2128. *MR
017452004-04-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.2L LL8 ENGINE- NO CRANK, NO START. *MR
00969A2004-02-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE WHISTLE NOISE. *TT
00810A2004-02-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. TICK NOISE AT IDLE. *TT
015262004-02-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. BELT SQUEAL. SIT BULLETIN 1406354. *TT
015792004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL PAN BAFFLES DELETED. SIT BULLETIN 1413402. *TT
015782004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. COOLING FAN OPERATION. SIT BULLETIN 1413381. *TT
00540B2004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL LEAK AT INTAKE GASKET. SIT BULLETIN 1412496. *TT
01526A2004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. BELT NOISE SQUEAL OR SQUEAK. *MN *MJ
0810B2004-02-24. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TICK NOISE AT IDLE. *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
0306040552003-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, MISFIRE OR ROUGHNESS, DIAGNOSTIC TROUBLE CODE (DTC) P0300 SET. *TT

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