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27/11/2021 7:34 pm
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I have a 2017 Hyundai sonata sport, automatic transmission, 2.4L naturally aspirated, 75,000 miles. I got the transmission fluid changed at the dealer about 10,000 miles ago. When I first drive the car in the morning i hear a rattling noise from the engine area while accelerating until I reach about 40 mph. It only lasts a minute or so and then goes away until I park the car and it gets cold again. It sounds like a mixture of a metal plate rattling and someone crinkling a plastic bag.
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27/11/2021 10:05 pm
Check for anything loose in the engine compartment: beauty cover, exhaust manifold shield, air cleaner cover, etc.