Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||||
| PIP-4568K | 01/01/2011 | 10037941 | Ready | 06/08/2011 | |
| PIP-4568K | 01/01/2011 | 10037941 | Gm: service engine soon light is on with a misfire and a possible tick noise. *rm | 06/08/2011 | |
| PIP-4138K | 01/01/2011 | 10037933 | Gm: the service engine soon light is on, there is also a misfire or engine noise. there are multiple possible causes. *rm | 06/08/2011 | |
| PIP-4138K | 01/01/2011 | 10037933 | Ready | 06/08/2011 | |
| ENGINE AND ENGINE COOLING - ENGINE | |||||
| 11-06-04-007B | 04/01/2012 | 10044229 | Gm: diagnosis and repair- malfunction indicator lamp illuminated, reduce engine power message displayed, dtc p2135 set. also included model sierra denali year 2010-2011 *js | 05/23/2012 | |
| SB-09-06-04-025 | 05/01/2009 | 10030725 | Saab/hummer/gmc/chevrolet: malfunction indicator lamp (mil) illuminated, dtcs p0300-p0306, engine runs rough (inspect for water intrusion in spark plug recess area, replace spark plug and ignition coil, seal ignition coil bolt hole vents a | 11/23/2009 | |
| SB-07-06-04-019A | 11/01/2008 | 10028831 | General motors: intermittent mil/ses/ dtc p2138 with reduced engine power (repair instrument panel (ip) to body harness connector). 2005-08 gm passengers cars/light duty trucks (incl. saturns). *pe | 06/01/2009 | |
| ENGINE AND ENGINE COOLING - ENGINE - DIESEL | |||||
| PIP-4574M | 08/01/2010 | 10036485 | Buick/chevrolet/gmc/pontiac/saab: excessive oil consumption and/or blue exhaust smoke-investigation update. in most cases did not start until the engine accumulated approximately 30,000 miles or more. *pe | 03/21/2011 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM | |||||
| PIP-4574M | 08/01/2010 | 10036485 | Buick/chevrolet/gmc/pontiac/saab: excessive oil consumption and/or blue exhaust smoke-investigation update. in most cases did not start until the engine accumulated approximately 30,000 miles or more. *pe | 03/21/2011 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE | |||||
| SC-11150 | 07/01/2011 | 10040504 | Ready | 08/31/2011 | |
| SC-11150 | 07/01/2011 | 10040504 | Gm service campaign: see document search button for owner letter. 2008-2009 trailblazer/envoy. the vehicles may develop a crack in the exhaust manifold. it could result in increased exhaust noise. *rm | 08/31/2011 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||
| 02/04/2013 | 47000 | 1 | |
| I started my vehicle on monday morning and it was unusually loud. after inspection, i found my manifold was cracked. *tr | |||
| ENGINE AND ENGINE COOLING - COOLING SYSTEM | |||
| 10/19/2009 | 1 | ||
| I purchased a 2008 envoy denali 7/08 during the middle of november while drive the temp gage drop to the lowest point and started cutting off hesitating to start. i then contact on-star they stated it was the cooling system and should be taken to the dealer on 10/19/09 i went and was told it was the temp senor which was replace that tuesday. thursday the same issue accord again i notified on-star they stated this time it was the transmission friday i went to the deal to be told they could not work on the car until monday. as i ws speaking to a tech they stated it sounds like the trans and the mgr approached and stated i am handling this and directed me toward the desk and stated he had a rental for me and arranged a ride for me. i truly believe there is something wrong with this car and to make this worse my navigation system has failed me twice as well. *tr | |||
| ENGINE AND ENGINE COOLING - ENGINE | |||
| 12/22/2009 | 1 | ||
| I having problems with my stabilitrak system the engine lights comes on and i just had the thermostat sensors change which took them three time to find the problem and my drivers window sensors was replaced and there a sudden thumb when you brake as thought you have been hit from behind. *tr | |||
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM | |||
| 09/17/2010 | 51000 | ||
| 2008 gmc envoy 51,000 miles exhaust manifold cracked i had it replaced and was told by dealer a 3 day wait would be necessary as they had used stock parts on another envoy with same problem . advised me not to drive because it may catch fire. | |||
| 08/05/2010 | 87000 | ||
| Bought the vehicle last november from georgian pontiac buick gmc in barrie ontario canada last november 2009. learned i had a cracked exhaust manifold on my 2008 envoy at 87 000 km. it has not yet been repaired. research is ongoing. | |||