# Service bulletin 14581 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. - Type: Service bulletin - NHTSA id: 10089979 - Published by NHTSA: 2017\-01\-31 - Manufacturer's number: 14581 - Manufacturer's date: 2015\-05\-14 - NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER ## NHTSA's summary 14581 \- EMISSION RECALL. GENERAL MOTORS HAS DECIDED TO CONDUCT A VOLUNTARY EMISSION RECALL INVOLVING CERTAIN 2008 CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, AND TAHOE; AND GMC SIERRA, YUKON, AND YUKON XL VEHICLES EQUIPPED WITH CALIFORNIA BIN 4 EMISSIONS RPO NU5. THE DESIGN OF THE FUEL CONTROL SYSTEM DID NOT ADEQUATELY CONTROL CARBON MONOXIDE EMISSIONS UNDER CERTAIN OPERATING CONDITIONS. DEALERS ARE TO REPROGRAM THE ENGINE CONTROL MODULE WITH A MODIFIED FUEL CONTROL CALIBRATION. ## The document No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number. ## Components Engine, Turbocharger or supercharger ## Vehicles listed - 2008 CHEVROLET AVALANCHE - 2008 CHEVROLET SILVERADO 1500 - 2008 CHEVROLET SILVERADO 2500 - 2008 CHEVROLET SILVERADO 3500 - 2008 CHEVROLET SUBURBAN - 2008 CHEVROLET SUBURBAN 1500 - 2008 CHEVROLET SUBURBAN 2500 - 2008 CHEVROLET TAHOE - 2008 GMC SIERRA 1500 - 2008 GMC SIERRA 2500 - 2008 GMC SIERRA 3500 - 2008 GMC YUKON - 2008 GMC YUKON XL - 2008 GMC YUKON XL 1500 - 2008 GMC YUKON XL 2500 ## Other bulletins for the same vehicles and component - [PI0653A](/bulletins/10190955.md), 2021-04-26, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center A Service Agent \(Dealer\) during vehicle service may need to replace an engine turbocharger \(TC\). Any turbocharger that is returned to the Warranty Parts Center \(WPC\) will be inspected by engineering for root cause failure. The Warranty Part Center \(WPC\) has received turbochargers returned by Service Agents that have been disassembled, damaged during removal from the engine, electrical harnesses or connectors that have been cut or removed from the turbocharger and/or improperly packaged turbochargers resulting in shipping damage. - [PI0653B](/bulletins/10138688.md), 2018-05-29, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo\-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers. - [PI0653C](/bulletins/10126343.md), 2017-12-22, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin provides dealership personnel with policies and procedures regarding damaged, disassembled or improperly packaged turbochargers returned to Warranty Part Center. - [PI0653D](/bulletins/10118979.md), 2017-10-15, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo\-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers. \(New models and RPOs added\) - [03\-06\-04\-017K](/bulletins/10116586.md), 2017-08-31, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. This Informational Bulletin provides information on availability of Diesel Fuel additives. - [PIP4568Q](/bulletins/10111986.md), 2017-08-15, Service bulletin: ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. This Preliminary Information communication provides information to the technician that some vehicles may have a Service Engine Soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Technician will follow service information diagnosis first. If service information diagnosis does not isolate the cause of this concern perform a cylinder deactivation active fuel management system compression test in service information. If the running compression of the misfiring cylinder stays below 25 Pounds per Square Inch regardless of the active fuel management solenoid being commanded on or off, an active fuel management lifter is mechanically collapsed/stuck or unlocking as soon as the engine is started. Replace all active fuel management lifters, and all plastic lifter guides. Also perform the cylinder deactivation active fuel management Valve Lifter Oil Manifold Diagnosis and Testing in Service Information. If it isolates a concern with the Valve Lifter Oil Manifold, replace it and reevaluate the concern. The active fuel management lifters can also be monitored for proper operation by carefully inspecting the cylinder 1, 4, 6, and 7 rockers and valves while cranking or briefly and safely running the engine with the valve covers removed. If the valve or valves of an active fuel management cylinder stop moving while doing this test, the active fuel management lifter is causing the concern. For 2008\-2009 Full Size Truck/SUV or a 2007\-2009 Chevrolet Tahoe with the Police Package reprogram the Engine Control Module. On the 2008\-2009 Pontiac G8, 2010\-2011 Camaro, and 2007\-2010 Full Size Trucks with active fuel management, also determine if the active fuel management pressure relief valve shield that is listed in the latest version of 10\-06\-01\-008 has ever been installed. On passenger cars with the LS4 engine, determine if the updated oil pan gasket that is listed in the latest version of 11\-06\-01\-007 has been installed. - [PIP\-4888](/bulletins/10038605.md), 2011-06-24, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. GM: INFORMATION ON INSPECTING AND REPLACING TURBOS. \*RM - [PIP\-4857](/bulletins/10037499.md), 2011-05-25, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; FUEL SYSTEM, DIESEL. GM: THERE MAY BE REDUCED POWER AND AN INTERNAL TROUBLE CODE IN HIGH TEMPERATURES OR WHEN NEAR THE TOWING LIMIT. \*RM - [PIP\-4629](/bulletins/10030207.md), 2009-08-19, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. CHEVROLET/GMC: DIESEL ENGINE TURBO DTC P2563 OR P003A. MAY ENCOUNTER A CONCERN OF SES LIGHT, REDUCED POWER, LOW POWER. \*PE - [PIP\-4372B](/bulletins/10026650.md), 2008-11-25, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 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 JSON: [/v1/bulletins/10089979](/v1/bulletins/10089979) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2014581&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10089979&vehicle=Service%20bulletin%2014581)