The issue
VEHICLES EQUIPPED WITH TURBOCHARGED V6 ENGINES. ENGINES MAY HAVE BEEN ASSEMBLED WITH AN INCORRECT VACUUM DIFFERENTIAL VALVE INSTALLED IN THE AIR SYSTEM. AN INCORRECT VALVE WOULD CAUSE THE ENGINE TO EXCEED THE EMISSION LEVELS SPECIFIED BY FEDERAL SAFETY STANDARD 1103 - EXHAUST EMISSIONS.
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged
Vehicles covered
| Make and model | Model years |
|---|---|
| Buick Century | 1979 |
| Buick Regal | 1979 |