Thanks for answering... The smoke comes out from under the plastic 3800 cover (white) hard to start when this happens but this don't always happen sometimes starts fine with no problems. when the problem happens the car will run great once started. we noticed that sometimes we can hear the fuel pump run but other times we don't hear it would a bad fuel pump possibly cause this? Its almost like the old carbs that would pop though with to much fuel and pop car runs exceptional once started.