Mazda 2 engine rattling and spinning noise when braking intermittently, possible spinning component issue on Mazda 2

Some Mazda 2 owners report experiencing engine rattling and spinning noises when braking intermittently, which may be attributed to several potential issues. These include problems with valve clearance, where the gap between the valves and their parts may become improperly adjusted, resulting in a ticking or rattling sound, particularly at idle. Additionally, some owners have noted that issues with ball joints, struts, or sway bar links can lead to similar rattling noises, often accompanied by a "clunk" or "knock" when turning or going over bumps. Furthermore, rattling may also originate from a loose 3rd rear brake light on the trunk lid or from components of the exhaust system, such as a damaged or loose muffler or exhaust pipe. To resolve these concerns, it is recommended that owners seek a thorough inspection by a qualified technician to accurately diagnose the issue and suggest appropriate solutions.