Acura RDX engine noise on cold starts possibly related to tensioner on Acura RDX

Some Acura RDX owners report experiencing engine noise during cold starts, which may be related to a failing tensioner. This issue can manifest as a clicking or ticking noise, particularly when the engine is cold, as the tensioner struggles to maintain proper belt tension. Some owners notice that the noise diminishes as the engine warms up and components expand, reducing slack in the belt system. Additionally, repetitive squeaking from the serpentine belt can indicate it is not running smoothly, while prolonged squealing may suggest a worn auto-tensioner. To diagnose the problem, some owners recommend removing the accessory belt and starting the engine to check if the noise persists. It is advisable for those experiencing unusual engine noises to inspect the tensioner and serpentine belt for potential issues.