Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||||
| 10126A | 03/01/2012 | 10043853 | Gm: see document search button for owner letter. special coverage adjustment- check engine light illuminated due to knock sensor on vehicles equipped with 8.1l v8 gas engine (l18). *js | 04/30/2012 | |
| 3187 | 06/01/2009 | PIP-3187A | 10010865 | Engine low power will not go over 2300 rpms. *eh updated 6/11/10. *pe | 12/15/2004 |
| ENGINE AND ENGINE COOLING - ENGINE | |||||
| PIP-4483B | 11/01/2010 | 10037514 | Ready | 05/25/2011 | |
| PIP-4483B | 11/01/2010 | 10037514 | Gm: there may be a misfire, engine noise, or a driveability concern. there are steps to determine the cause. *rm | 05/25/2011 | |
| SB-10126 | 06/01/2010 | 10033527 | Gmc/chevrolet: special coverage adjustment-check engine light illuminated due to knock sensor. vehicles equipped with 8.1l gas engine may notice the illumination of the check engine soon light and slower acceleration. maybe due to knock | 08/20/2010 | |
| SB- 09285 | 11/01/2009 | 10032324 | Gmc/chevrolet: service engine soon light illuminated-exhaust gas recirculation (egr) cooler plugging prevention. *pe | 03/05/2010 | |
| PIT-4838 | 04/01/2009 | 10030210 | Gmc/chevrolet: in rare cases when ignition key is turned off the engine continues to run. this could be caused by a voltage back feed through the a/c-wiper diode on kodiak/topkick t series trucks. (remove diode) *pe | 08/19/2009 | |
| TB-09-06-04-022 | 05/01/2009 | TB-09-06-04-022A | 10030110 | General motors: malfunction indicator lamp (mil) illuminated, intermittent dtc p0191, slow fuel rail pressure (frp) decay, wiring harness connections, voltage fluctuations/interruptions (follow correction information below). *pe | 08/03/2009 |
| ENGINE AND ENGINE COOLING - ENGINE - DIESEL | |||||
| PI-0474 | 05/01/2011 | 10038744 | Ready | 06/27/2011 | |
| PIP-4907 | 05/01/2011 | 10038755 | Ready | 06/27/2011 | |
| PIP-4907 | 05/01/2011 | 10038755 | Gm: service engine soon light is on with an internal trouble code stored when the vehicle is at idle. *rm | 06/27/2011 | |
| PI-0474 | 05/01/2011 | 10038744 | Gm: an 'engine power is reduced' message appears and there is a stored trouble code. this is caused by wear of the internal fuel injector. *rm | 06/27/2011 | |
| PIP-3504C | 11/01/2010 | 10037516 | Ready | 05/25/2011 | |
| PIP-3504C | 11/01/2010 | 10037516 | Gm: there is a diesel engine hard start when hot. starts fine when cold. there will be no internal trouble codes. *rm | 05/25/2011 | |
| PIP-4629 | 04/01/2009 | 10030207 | Chevrolet/gmc: diesel engine turbo dtc p2563 or p003a. may encounter a concern of ses light, reduced power, low power. *pe | 08/18/2009 | |
| SB-08289 | 10/01/2008 | 10028489 | General motors: on certain model vehicles, equipped with a 6.6l diesel v8 (rpo lmm) engine, may have the diesel idle engine shutdown system disabled. gm has decided to conduct a voluntary recall on these vehicles. csc letter was received | 05/05/2009 | |
| 3586 | 08/01/2009 | PIP-3586F | 10019434 | Diesel engine glow plug trouble codes. *tt updated 3/15/10. *pe | 03/14/2006 |
| ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - TURBO-CHARGER | |||||
| PIP-4372B | 07/01/2008 | 10026650 | Gmc: oil leak at turbocharger air intake pipe. initial inspection ma reveal a leak that looks as it is coming from the rear of the engine. *pe | 11/24/2008 | |
| ENGINE AND ENGINE COOLING - ENGINE - OTHER FUEL TYPES - TURBO-CHARGER | |||||
| PIP-4857 | 11/01/2010 | 10037499 | Gm: there may be reduced power and an internal trouble code in high temperatures or when near the towing limit. *rm | 05/24/2011 | |
| PIP-4857 | 11/01/2010 | 10037499 | Ready | 05/24/2011 | |
| PIP-4629 | 04/01/2009 | 10030207 | Chevrolet/gmc: diesel engine turbo dtc p2563 or p003a. may encounter a concern of ses light, reduced power, low power. *pe | 08/18/2009 | |
| PIP-4372B | 07/01/2008 | 10026650 | Gmc: oil leak at turbocharger air intake pipe. initial inspection ma reveal a leak that looks as it is coming from the rear of the engine. *pe | 11/24/2008 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE | |||||
| PIP-4705 | 09/01/2009 | 10032437 | Gmc/chevrolet: loss of power snow or ice in air intake. a dealer may encounter vehicle with loss of power due to snow of ice in air intake. vehicle may or may not have dtc p0101. *pe | 03/24/2010 | |