We've just been quoted $4000 to replace the timing chains in our 2006 Holden Commodore Wagon. Is this an average accurate figure on this sort of repair? Have not had any experience with this sort of ...

I'm contemplating buying a VF commodore with the 3.6-litre SIDI engine, perhaps an SV6 or a Calais. I've heard and read reports of the V6 having timing chain issues on VZ and VE models. Do you think ...