My car engine makes a light clicking noise when I start it up in the morning, and the noise continues for about the first mile and then goes away. It sounds like the noise one of my old cars once made when the hydraulic valve lifter would leak down over night and made a light tapping noise until it pumped up with oil again.

Could this be what is happening in my car? Does the Azera motor have hydraulic valve lifters?

Gene in NC

 

Some of the early Lambda V6 engines (both 3.3 and 3.8 liter), mostly used in the 2006 Sonata and Azera models, were manufactured with faulty hydraulic timing chain tensioners. The rattle manifests itself on cold starts and goes away shortly after full oil pressure is attained. Read the following TSBs to help you understand the situation.

http://www.hmaservice.com/files/331/.../06-20-002.pdf

http://www.hmaservice.com/files/331/...M-001-1pdf.pdf

Talk to your local Hyundai service manager about resolving the issue.