Rattling sound on cylinder head?

2009 NISSAN HARDBODY
226,000 MILES • 2.4L • 4 CYL • 4WD • MANUAL
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The vehicle has a rattling sound on the cylinder head. It gets worse after driving a few kilometers. I changed chains but there's no improvement.
Jul 23, 2024 at 9:58 AM
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Can you please shoot a quick video with your phone so I can hear the noise? That way I can tell for sure what's going on. You can upload it here with your response. We need to hear the noise, so we know which direction to go to help you fix the car. It takes time to upload so please be patient. It could be a broken valve spring, camshaft follower or a camshaft going flat. I would remove the valve cover to do an inspection. Also, you say it's a hard body but they didn't make them in 2009?
Jul 23, 2024 at 10:17 AM