does it do this all the time or just when the car is cold??? mine idles pretty high in the morning after i start it. even so, 4 grand is really high. try making sure the gas pedal cable isnt caught on something. Or u know that little lever than you can push on the engine to give it gas...make sure that thingy isnt stuck or something. If thats not the case the search button may be able to answer your questions