Express 3500 V8-6.6L DSL Turbo (2008)
Technical Service Bulletin # 11054
Date: 110412
Recall - Replace Exhaust Gas Temperature Sensor
PRODUCT EMISSION
Bulletin No.: 11054
Date: April 12, 2011
Subject: 11054 - Reduced Engine Performance and Emission Control - Replace Exhaust Gas Temperature Sensors
Models:
2010 Chevrolet Express, Silverado HD
2010 GMC Savana, Sierra HD
With 6.6L V8 Duramax Diesel Engine (LMM)
2007-2009 Chevrolet Express, Kodiak, Silverado HD
2007-2009 GMC Savana, Sierra HD, TopKick
With 6.6L V8 Duramax Diesel Engine (LMM) Serviced with a Suspect EGT Sensor
Condition
General Motors has decided to conduct a Voluntary Emission Recall involving certain 2010 model year Chevrolet Express, Silverado HD; and GMC
Savana, Sierra HD vehicles equipped with a 6.6L V8 Duramax diesel engine (LMM); and 2007-2009 model year Chevrolet Express, Kodiak, Silverado
HD; and GMC Savana, Sierra HD, and TopKick vehicles equipped with a 6.6L V8 Duramax diesel engine (LMM) that may have been serviced with a
suspect Exhaust Gas Temperature (EGT) sensor. On these vehicles, the circuit board welds on the EGT sensors in the exhaust system may not be to GM
specification. If a weld fails, the Service Engine Soon light will illuminate in the instrument panel, the exhaust gas may not be filtered properly, and the
engine power may be reduced.
Correction
Dealers are to replace both EGT sensors.
Vehicles Involved
Involved are certain 2010 model year Chevrolet Express, Silverado HD; and GMC Savana, Sierra HD vehicles equipped with a 6.6L V8 Duramax
diesel engine (LMM); and 2007-2009 model year Chevrolet Express, Kodiak, Silverado HD; and GMC Savana, Sierra HD, and TopKick vehicles
equipped with a 6.6L V8 Duramax diesel engine (LMM) that may have been serviced with a suspect EGT sensor.
Important
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the Required Field Actions section in the Global Warranty system.
Not all vehicles may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle identification number, customer name, and address
information has been prepared and will be provided to US and Canadian dealers through the GM GlobalConnect Recall Reports, or sent directly to
export dealers. Dealers will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor vehicle registration
data for any purpose other than follow-up necessary to complete this recall is a violation of law in several states/provinces/countries. Accordingly, you
are urged to limit the use of this report to the follow-up necessary to complete this recall.
Parts Information
Parts required to complete this recall are to be obtained from General Motors Customer Care and Aftersales (GMCC&A). Please refer to your "involved
vehicles listing" before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts should
be ordered on a CSO = Customer Special Order.
Service Procedure
