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I'll bet anything that your check engine light is on, go to autozone and find out what it is for free and go from there

most likely bad idle air control valve or misfire or dirty intake system/throttle body

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Q: What cause 1997 BMW 740il vabrate when start the engine but you can shut the car off an start the engine it want vabrate what the problem 1997 BMW 740il?
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