Valve seat that is below the required retention force or not fully seated into one of the cylinder heads

Bulletin number

20U12

Component

Engine and engine cooling: engine: diesel

Summary

Some of the affected vehicles may have a valve seat that is below the required retention force or not fully seated into one of the cylinder heads. A valve seat that is out of position may cause the illumination of the check engine light and may lead eventually to engine damage and potentially resulting in engine failure.

Owners of these vehicles have filed 47 complaints in the engine category.