After replacing the coolant transfer pipe there is a loud ticking/slapping sound under valve cover?

2005 BMW 645
120,000 MILES • 4.4L • V8 • TURBO • 2WD • AUTOMATIC
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I replaced the coolant transfer pipe, now there is a loud ticking/slapping sound coming from driver side valve cover when i start it. Also when i start it the noise will start the car will shake sputter and shut off after 5-10 seconds.
Aug 22, 2024 at 7:40 PM
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It sounds like the engine was overheated? If so, this can cause the piston to have scored the cylinder walls, please go over this guide to see if it can help:

https://www.2carpros.com/articles/symptoms-of-an-overheating-engine

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.
Aug 23, 2024 at 7:36 AM