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Q: Car rattling.

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Car is making a loud rattling noise. The noise is really noticeable during idling and acceleration.

A: This engine rattling on acceleration may be...

This engine rattling on acceleration may be a computer reprogram that would fix if the noise is what is called pinging or pre-ignition. The problem of the noise at idle and on acceleration may be another problem and I would have to recommend you have a qualified mechanic listen to the noise to make sure it is not a loss of oil pressure or internal engine problem.

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