Engine - Turbocharger Housing Inlet Flange Cracks
INFORMATIONBulletin No.: 09-06-93-002
Date: May 27, 2009
Subject: Turbocharger Housing Inlet Flange Cracks in Partition Wall
Models:
2008-2009 Chevrolet Cobalt SS, HHR SS
2007-2009 Pontiac Solstice GXP
2007-2009 Saturn SKY Redline
2007-2009 Opel GT
2007-2009 Daewoo G2X
All Equipped with Engine RPO LNF
Please Refer to GMVIS
Important
DO NOT replace the turbocharger assembly for this concern.
The purpose of this bulletin is to address concerns with turbocharger housing cracks in the inlet flange partition wall. Vehicles diagnosed with various driveability concerns or turbocharger DTCs P0299 or P0234 after inspection, are revealing cracks in the inlet flange partition wall of the turbocharger housing. Turbocharger assemblies are being replaced based on the discovery of these cracks.
The pictures below illustrate typical cracks found in the turbocharger housing.
This illustration shows the location of the cracks in the partition wall of the turbocharger inlet flange on the left (1) and on the right (2).
This illustration shows a close-up of the crack on the left side of the partition wall (1).
This illustration shows a close-up of the crack on the right side of the partition wall (2).
These cracks are not uncommon and are considered a normal condition and should NOT be a reason for replacing the turbocharger assembly. The cracks will not affect performance. If the vehicle exhibits driveability concerns or turbocharger DTCs P0299 or P0234 are set, refer to SI and follow the established diagnostics for correction of the customer concern.
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