Re: VTC actuator
i had a 2010 tsx 6 spd, 80,000km approx on it, bought it certified used from acura.
VTC made the griding noise on cold startup. took it back under warranty and I made acura change it 5 times, so 5 new VTC's and it still made the noise. they also replaced timing chain, chain guides, tensioner, still made the noise. was going to make them change the head but they bought back the car instead. apparently, the VTC is not made by honda, and they don't have a fix for it. at worst case they change the entire head.