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A ticking sound from a 5.4 Triton engine after it warms up is often caused by a few common issues. One possibility is the failure of the hydraulic valve lifters, which can lead to insufficient oil pressure and result in lifter noise. Another potential cause is the use of low-quality oil or incorrect viscosity, which can affect lubrication as the engine heats up. Additionally, worn or damaged timing chain components may contribute to the ticking sound as the engine operates.

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1mo ago

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