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Why are Hydraulic Lifters Noisy When Cold?

Model: (Various brands) Various
Part: Checks and maintenance

Why are hydraulic lifters noisy when the engine is cold? It often happens that, upon starting the cold engine of your vehicle, you hear an annoying noise from the lifters. The main cause of these bothersome noises or most failures is primarily due to deterioration or excessive dust accumulation in the lifter mechanism. To alleviate these issues, it is often sufficient to use specific products for lubricating mechanical components or some engine oil and gearbox additives.

Updated on 23 April 2026 by ScegliAuto

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