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idlen on 1999 Mazda 626

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
so u think it cud be da intake manafold gasket?
(1) Answer
Yes, it could be the intake manifold gasket, or something else. You need to isolate the leak, it could be a hose under the manifold too. Use a spray bottle with water, that way you can pinpoint the leak more precisely.