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Model Years Affected: 1991, 1992, 1993
The throttle body gasket may develop a vacuum leak which may result in a higher than normal engine idle. Failed gaskets will require replacement.
Common Problems > Buick Roadmaster
Q&A > Buick > 1993 Buick Roadmaster
Q&A > Buick > 1992 Buick Roadmaster
Q&A > Buick > 1994 Buick Roadmaster