Thread: Symptoms of a vacuum problem?

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2009-02-14 20:47:57

Nathan33

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Symptoms of a vacuum problem?

What are some typical symptoms of a problem with the vacuum lines?

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St.Louis College of Pharmacy

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2009-02-16 02:42:05

NJse-r

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-A rough idle

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2009-02-16 22:15:19

Nathan33

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What if a good amount of the time the idle is fine but every once in a while the rmps fall to idle then just keep falling and it dies. Mixed with engine bogging between 2-4k rmps even (and its not a shaky foot, this happens with the cruise control on also).

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2009-02-17 13:39:15

NJse-r

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Originally Posted by Nathan33

If the car can hold a steady idle at 700-750 RPM then usually there is no vaccum issue. Start with checking the TPS or the MAFS if you are having a problem in a specific RPM range. I would check the timing also.

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