Question about 2003 Chevrolet Impala

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Where is the vacuum hose into the intake manifold for a 2003 Chevy Impala?

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  • mindseye08 Aug 13, 2008

    we have a 2001 Monte Carlo, engine was revving high RPM's then shaking violently. Mechanic fixed in a few minutes, said it was vacuum hose. 2 days later same thing has happened. Can someone tell me where to find the vacuum hose(s) so I can reconnect myself and try to fix permanently?

  • yadayada
    yadayada May 11, 2010

    There are quite a few vacuum hoses connected to the intake, which componet that uses vacuum is not working?



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IF the engine was revving high RPMS it had to be a serious vaccum leak. If the PCV came undone it would cause it rev up quite high. the shaking was from the factory set RPM limiter when not in gear (around 4,000 RPMS) the only other vaccum leak big enough would be for the brake booster. They both have a check valve but that doesn't mean much. I would start there PCV is around 5 bucks and the other is about the same. If you need pics of location I could do that also.

Posted on Sep 15, 2008


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Remove the engine cover to access the intake manifold and manifold gasket. Disconnect the throttle body inlet duct from the engine.

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Clean the engine block thoroughly with the engine degreaser and linen cloth. If necessary, use a gasket scraper to remove excess buildup and grime.

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Place the old intake manifold on top of the newly-installed manifold gasket until it aligns with all of the holes of the cylinder flanges and manifold gasket.

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