Toyota RAV4 rumbling noise at low RPM or when climbing, persists despite heat shield checks and new drive shaft on Toyota RAV4

Some Toyota RAV4 owners report experiencing a persistent rumbling noise at low RPM or while climbing, even after checking the heat shield and installing a new drive shaft. This noise may be indicative of potential transmission issues, particularly if it occurs at specific RPM ranges or during acceleration. Additionally, engine troubles, such as misfiring or worn components, can contribute to the rumbling, especially under load or at low speeds. Despite inspecting the heat shield, some owners find that exhaust system problems, like loose or damaged components, may still be the source of the noise. Faulty suspension components, including worn bushings or struts, can also lead to similar sounds when navigating bumps or inclines. Furthermore, worn wheel bearings may produce a rumbling noise while the vehicle is in motion, which may persist even after a drive shaft replacement. It is crucial for owners to seek a thorough inspection by a qualified mechanic to accurately diagnose and address the underlying issues to ensure optimal vehicle performance and safety.