Is there a TSB or recall for Hyundai Sonata cam chain tensioners? on 2006 Hyundai Sonata

The harmonic balancer pulley fell off a few days ago, so we had the dealer replace it ($370.00). Immediately after this, the engine began making loud noises on start-up for a couple of seconds. Now the dealer thinks we need a new cam chain tensioner (minimum $1300.00). Anyone have info?

Asked by for the 2006 Hyundai Sonata
1 answer 1 comment
no tsb's or recall on that item. how many miles on car? don't they have a 10yr 100k mile warrnaty that covers internally lubricated eng parts?
Our car has 107,000 km on it!!! Getting a second opinion this week. I will ask the dealership, but feel I am sol.