Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
PIP-4138K01/01/201110037933Ready06/08/2011
PIP-4138K01/01/201110037933Gm: the service engine soon light is on, there is also a misfire or engine noise. there are multiple possible causes. *rm06/08/2011
PIP-4568K01/01/201110037941Gm: service engine soon light is on with a misfire and a possible tick noise. *rm06/08/2011
PIP-4568K01/01/201110037941Ready06/08/2011
318706/01/2009PIP-3187A10010865Engine low power will not go over 2300 rpms. *eh updated 6/11/10. *pe12/15/2004
ENGINE AND ENGINE COOLING - COOLING SYSTEM
PIP-482208/01/201010036364Chevrolet/gmc: possible engine overheat or loss of coolant. normal si diagnostics will lead to inspecting the water pump for proper operation. when water pump is removed, be sure to inspect the impeller. *pe03/14/2011
ENGINE AND ENGINE COOLING - COOLING SYSTEM - HOSE
08-04-19-00408/01/200810026624Gmc: correct front axle vent hose routing. the front axle vent hose is mounted in the left side of the engine compartment, and may not be correctly routed. *pe11/19/2008
ENGINE AND ENGINE COOLING - ENGINE
11-06-04-007B04/01/201210044229Gm: diagnosis and repair- malfunction indicator lamp illuminated, reduce engine power message displayed, dtc p2135 set. also included model sierra denali year 2010-2011 *js05/23/2012
SC-1130401/01/201210043505Chevrolet/gmc: see document search button for owner letter. illumination of check engine soon light may be caused by evaporative emission canister purge solenoid valve not functioning properly. *pe04/06/2012
PIT-4769B03/01/201110038624Gm: the air bag light is on with a stored trouble code. *rm06/24/2011
PIT-4769B03/01/201110038624Ready06/24/2011
SB-10-06-04-001C12/01/201010037912Ready06/07/2011
SB-10-06-04-001C12/01/201010037912Gm: the check engine light is on. there is condensation on the fuel tank pressure sensor causing an improper reading. *rm06/07/2011
PIP-3783C12/01/201010037809Ready06/06/2011
PIP-3783C12/01/201010037809Gm: the engine light is on and the vehicle lacks power. there are multiple possible trouble codes. *rm06/06/2011
PIT-504311/01/201010037572Gm: on some hybrid vehicles after updating software there is an internal trouble code stored and it won't go away. *rm05/25/2011
PIT-504311/01/201010037572Ready05/25/2011
PIP-4792A10/01/201010037127Gm: on a cold start there may be a hard start, brief rough running, black exhaust color, and an engine light. the symptoms diminish after running a while. *rm05/09/2011
PIP-4792A10/01/201010037127Ready05/09/2011
SB-07-06-03-002C07/01/201010036524Cadillac/chevrolet/gmc: information on inspecting top post battery cable bolts, clamps and nuts during pre-delivery inspection (pdi). *pe03/28/2011
PIP-4492P09/01/2010PIP-4492Q10036464Buick/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 3/21/03/16/2011
PIP-4492P08/01/201010036464Buick/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. *pe03/16/2011
PIT-502809/01/201010036324Pontiac/saturn/buick/gmc/chevrolet/cadillac/hummer: vehicle start and stalls after theft deterrent module replacement. model years 2006-2011. does not apply to vehicles with keyless access system. *pe03/14/2011
PIP-482208/01/201010036364Chevrolet/gmc: possible engine overheat or loss of coolant. normal si diagnostics will lead to inspecting the water pump for proper operation. when water pump is removed, be sure to inspect the impeller. *pe03/14/2011
SB-02-06-04-037109/01/201010035764Chevrolet/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). *pe03/04/2011
PIP-4489E01/01/201010034432Cadillac/chevrolet/gmc: service hybrid system message and or service engine soon lamp on. engineering would like information on vehicles with dtc p0c19, p0c1a, p0a78, p0a79, p0c0b, p0c0e, p0bfd, or p0bfe. retrieve and save the freeze fra11/15/2010
SB-10-06-04-00101/01/201010034369Chevrolet/gmc/pontiac: intermittent mil/check engine light on, dtc p0442, p0446, p0451, p0452, p0453, p0454 or p0455 (install fuel tank pressure sensor cover). this condition may be caused by normal water accumulation or condensation bloc11/08/2010
SB-08-06-04-054A01/01/201010034364Chevrolet/gmc: snow or ice ingestion into air cleaner element, malfunction indicator lamp (mil) illuminated, engine power is reduced message displayed, dtc p0101 set (perform repair as outlined). *pe11/08/2010
PIP-468608/01/200910032393Chevrolet/cadillac/gmc: hybrid driveability or customer concerns of flare, slip, stall at a stop, surge, lack of power, poor fuel economy, reduced ev range/limited electric propulsion, dtc p061b after campaign 09102b or dtc p061b prior to03/15/2010
SB- 0928511/01/200910032324Gmc/chevrolet: service engine soon light illuminated-exhaust gas recirculation (egr) cooler plugging prevention. *pe03/05/2010
SB-09-06-04-03508/01/200910032295Gmc/chevrolet: intermittent engine stall on deceleration during extreme high ambient temperatures (reprogram ecm). *pe03/01/2010
PIT-4846A05/06/200910030244Cadillac/chevrolet/gmc: locations of high speed gmlan wiring concerns. gauges inoperative, no crank, harsh transmission shifting, no transmission shifting, door locks cycling and indicators on. *pe09/02/2009
TB-09-06-04-02404/01/200910030111Diagnostic information on malfunction indicator lamp (mil) illuminated with dtcs p0442,p0446, p0451, p0452, p0453, p0454, p0455 and replacement of fuel tank pressure (ftp) sensor/module. *pe08/03/2009
TB-09-06-04-02205/01/2009TB-09-06-04-022A10030110General 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). *pe08/03/2009
08-06-03-00707/01/200810026007Gmc: no start, no crank, intermittent electrical operations (check for poor connections within engine wiring harness junction block). *pe09/23/2008
ENGINE AND ENGINE COOLING - ENGINE - DIESEL
PI-047405/01/201110038744Gm: an 'engine power is reduced' message appears and there is a stored trouble code. this is caused by wear of the internal fuel injector. *rm06/27/2011
PI-047405/01/201110038744Ready06/27/2011
PIP-3504C11/01/201010037516Gm: there is a diesel engine hard start when hot. starts fine when cold. there will be no internal trouble codes. *rm05/25/2011
PIP-3504C11/01/201010037516Ready05/25/2011
SB-08-06-04-054A01/01/201010034364Chevrolet/gmc: snow or ice ingestion into air cleaner element, malfunction indicator lamp (mil) illuminated, engine power is reduced message displayed, dtc p0101 set (perform repair as outlined). *pe11/08/2010
PIP-466406/01/200910032889Gmc/chevrolet: dtc p0101 with non gm air filter. may encounter concern of reduced power and ses light on. diagnostics may reveal maf (mass air flow) sensor dtc p0101. if diagnostics were inconclusive its possible dtc p0101 is setting du06/08/2010
PIP-462904/01/200910030207Chevrolet/gmc: diesel engine turbo dtc p2563 or p003a. may encounter a concern of ses light, reduced power, low power. *pe08/18/2009
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - TURBO-CHARGER
PIP-4372B07/01/200810026650Gmc: 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. *pe11/24/2008
ENGINE AND ENGINE COOLING - ENGINE - OTHER FUEL TYPES - TURBO-CHARGER
PIP-488803/01/201110038605Ready06/24/2011
PIP-488803/01/201110038605Gm: information on inspecting and replacing turbos. *rm06/24/2011
PIP-485711/01/201010037499Ready05/24/2011
PIP-485711/01/201010037499Gm: there may be reduced power and an internal trouble code in high temperatures or when near the towing limit. *rm05/24/2011
PIP-462904/01/200910030207Chevrolet/gmc: diesel engine turbo dtc p2563 or p003a. may encounter a concern of ses light, reduced power, low power. *pe08/18/2009
PIP-4372B07/01/200810026650Gmc: 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. *pe11/24/2008
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL
SC-1130401/01/201210043505Chevrolet/gmc: see document search button for owner letter. illumination of check engine soon light may be caused by evaporative emission canister purge solenoid valve not functioning properly. *pe04/06/2012
SB-02-06-04-037109/01/201010035764Chevrolet/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). *pe03/04/2011
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CRANKCASE (PCV)
PIP-4492P09/01/2010PIP-4492Q10036464Buick/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 3/21/03/16/2011
PIP-4492P08/01/201010036464Buick/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. *pe03/16/2011

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
03/31/201239000
 Excessive oil consumption at or above 1 quart of oil per 1,000 miles. all plugs fouled out at 39,000 miles and one plug cracked. i change oil every 3,500 miles and regularly top off oil. there is no leaking oil but it is somehow vaporizing rapidly. there was no reason for the vehicle to fail like this at this stage in its life. chevy has come to state in a bulletin concerning a tweak to the valve covers to keep the oil from vaporizing. chevy has even more recently come out with a recall as of 1/17/2012 to announce there is a legitimate issue with the oil consumption on this model chevy. this is unacceptable and gm should pay for any current damage to the truck, worn parts and all.
11/02/2011
 At 46,487 miles had to spend $415.75 to correct engine light coming on. now door chime comes on at random times when key is not in ignition.