Sea Foam for Oldsmobile Bravada rough idle? [SOLVED] 0 Answers My Oldsmobile Bravada got a rough idle. How can Sea Foam help? Asked by Rosalie B. In Alabama Add AnswerCancel I have this question too. 6 Submit Ask a Question Hide Suggestions Most answers will appear on this page within 24 hours. Be sure to state your question/s clearly. It always helps to include basic details about your engine like make and model! Submit