HELP! Sudden loud ticking only during coldstart and driving

Dreadnaught

From the video it sounds like you have an exhaust leak. Get a flashlight and look around the exhaust manifold for black marks where the exhaust manifold bolts to the cylinder head and check for cracks. A stud could have broken off. If you can take off the exhaust manifolds heat shield you should do so you can get a better view. I would also check where the exhaust manifold bolts to the cat.

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