ANSWERS: 1
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It certainly sounds like a vacuum leak. One way to check is to (carefully) spray small amounts of carburetor cleaner around the mating surfaces of the intake manifold, throttle body, etc. If the engine picks up rpm while doing this, you've found your leak. Extra care should be taken not to spray electrical components while doing this. If you are unsure of your ability to do this safely, please take your vehicle to a service professional, and tell him your concerns.
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