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What causes a rough idle after changing the intake gasket and a rotten egg smell in a 2000 Pontiac grand am 3400 engine?
Wiki User
∙ 16y ago
Can be many things, but considering you just changed the intake gasket, I would suspect you did it incorrectly or have knocked a vacuum hose loose somewhere. You have a vacuum leak somewhere.
Wiki User
∙ 16y ago
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