TB 2844: Engine Misfire or Lack of Compression on 2003-2011 Saab 2.0L Turbo Engines

摘要

The AERA Technical Committee offers the following information on engine misfire or lack of compression on 2003-2011 Saab 2.0L turbo engines. It is important to note that a lack of compression is most noticeable on a cold engine. Intake valve face erosion and cupping has been reported on these engines, generally after 80,000 miles but has been reported as low as 50,000 miles. Intake valve replacement is required to resolve this condition. Cylinder head removal is required and it is recommended a valve job be performed while replacing all eight intake valves.