This article supersedes TSB 08-1-9 to update Vehicle Applications, Service Procedure and Part List.
The engine build date can be read on the left hand cam cover information sticker.
To remove spark plugs without damage, it is necessary to adhere exactly to this procedure before removal is attempted.
Spark Plug Removal Procedure
Separated/Broken Spark Plug Removal
If the spark plug separates after following the Spark Plug Removal Procedure, it will fail in one of three modes. Refer to the appropriate removal procedure as required.