Car Problem Reports

Mazda 626 Intake Manifold Vacuum Leak Causing Rough Idle

Mazda 626 Problem
12 Reports
Me Too

Model Years Affected: 1999, 2000, 2001, 2002

Engines Affected: 2.0L 4 Cylinder, 2.5L V6

Average Mileage: 140,946 mi (98,000 mi - 190,000 mi)


The intake manifold gasket can fail causing vacuum a leak and/or a rough idle condition. Replacement of the leaking gasket will be necessary to correct this concern.

  • mscallie, , 2.0L 4 Cylinder, 98,000 mi

    Car idles roughly while sitting at lights and in park. The rpm's on the vehicle are very low as well.

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  • Visitor, , 2.5L V6, 125,000 mi

    Whenever I sit at a light, in traffic or through a drive-thru my car shakes and makes a bit of noise. I took it to a repair show and was told I have an exhaust leak.

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  • Visitor, , 2.0L 4 Cylinder

    car cuts off sporadically

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  • Visitor, , 2.0L 4 Cylinder, 145,000 mi

    Rough idle, stalling, idled fine if you kept foot on gas. Intake gasket was blown out. Replaced gasket. All is well

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  • Visitor, , 2.5L V6, 190,000 mi

    rough idle, engine surges especially when in drive. have to put in neutral to keep running when decelarating.

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  • Visitor, , 2.0L 4 Cylinder

    intake gasket fail sprayed starting fluid to find leak replaced gasket

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  • Visitor, , 2.5L V6, 150,678 mi

    Car is all of a sudden riding ruff. If car is in park and on the speedometer moves from 0 to 20 mph. And finally feels as though transmission is slipping.

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