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.
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2006 Hyundai Azera Question: How do I cure a tapping sound in cold weather start ups?.
Answer #1asksteevies April 01, 2014, 20:57Master
Changed the engine oil more often every 4000 miles
ReplyLeslieF, April 02, 2014, 18:17Rookie
I already change every 3000 miles.
Answer #2tpuddleglum February 12, 2015, 18:15Rookie
Have experienced the same - utilizing synthetic oil which appears to be reducing frequency. LeslieF: Have you identified the source and a fix?