question on a 2000 chevy impala, please see info below?

  • Thread starter Thread starter hslbrth
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hslbrth

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when i started my car up it immediately started to idle high, real loud. When I stop at red light and take my foot off the brake, the car goes on its own. When I am driving on the highway I can take my foot off the gas and it will either keep accelerating by a couple mph or will just not lose speed. Any ideas or suggestions of what could be wrong would be appreciated.
 
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