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1994f150 5.0 motor cold runs good gets warm smell gas gets bad flat spot leave throttle same spot it will pick up and go like crazy

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Hello! There are several areas to be checked... The fuel vapor return line and canister lines...On the left bank...Return line enters throttle body...check for leaks...Defective fuel vapor system will cause poor throttle response on a warm engine...Check all vacuum lines and PCV...Guru..saailer

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Posted on Sep 12, 2010

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