Yeah that is a vacuum leak, look behind the engine by the firewall. Look at the pcv valve and see if it is disconnected or cracked. If that is not it, get yourself some throttlebody cleaner or brake kleen and mist it around all the hoses while the engine is running, when the idle changes, that is where your leak is, or take hold of the throttle linkage and rev it up a little till you get the whistle noise to see if you can detect where it is.
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Friday, March 5th, 2010 AT 4:46 PM