Affected Component: ENGINE AND ENGINE COOLING

Date Published
APR 25, 2023
NHTSA TSB #
10235702
TSB Document
Summary
A tapping/rattling noise may be noticed from the valve train area. This operating condition can occur on new vehicles which have been delivered to Mazda dealers (due to loading and unloading from transport trucks or customers moving their vehicles in and out of their garages to wash the vehicle, etc.). This condition may also occur if the engine is not allowed to warm up after multiple cold starts.