There have been 2 technical service bulletins issued for the 1990 Oldsmobile Cutlass Supreme.
| Bulletin Date: | Oct. 1, 1999 |
| Component: | Suspension. |
| Bulletin Summary: | Customers may complain of grinding / scraping / groaning noise from rear suspension. |
| Vehicles covered in this TSB: |
1988 Buick Regal,
1989 Buick Regal,
1990 Buick Regal,
1991 Buick Regal,
1992 Buick Regal,
1993 Buick Regal,
1994 Buick Regal,
1995 Buick Regal,
1996 Buick Regal,
1990 Chevrolet Lumina,
1991 Chevrolet Lumina,
1992 Chevrolet Lumina,
1993 Chevrolet Lumina,
1994 Chevrolet Lumina,
1988 Oldsmobile Cutlass Supreme,
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| Bulletin Date: | Jul. 1, 1998 |
| Component: | Gasoline engine. |
| Bulletin Summary: | Some v6 engines may, on a very infrequent basis, have an oil odor condition that is generally encountered after the engine's oil has been changed. Typically the odor lasts approximately 1000 miles after the change of oil and then does not re |
| Vehicles covered in this TSB: |
1994 Buick Century,
1995 Buick Century,
1996 Buick Century,
1997 Buick Century,
1998 Buick Century,
1990 Buick Regal,
1991 Buick Regal,
1992 Buick Regal,
1993 Buick Regal,
1994 Buick Regal,
1995 Buick Regal,
1996 Buick Regal,
1994 Buick Skylark,
1995 Buick Skylark,
1996 Buick Skylark,
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