In cold weather when the temperature is at the freezing mark or below and the engine is started it sounds normal. As soon as the transmission is engaged there is a tapping sound that disappears as the engine warms up. If the engine is allowed to run for a few minutes after starting from cold and before the transmission is engaged the tapping sound does not appear.
How do I cure a tapping sound in cold weather start ups?. on 2006 Hyundai Azera
2 answers 1 comment
Have experienced the same - utilizing synthetic oil which appears to be reducing frequency. LeslieF: Have you identified the source and a fix?
Changed the engine oil more often every 4000 miles
I already change every 3000 miles.