I have an SRT-6 and had the steering box replaced last week. I had loads of noise and funny feeling steering for a couple of days until all the air had bled out the system. Steering works fine now but I have a whine/drone at tick over, a bit like the noise you get when you start form cold, but it stays when warm. Anyone have any ideas what this could be ? They had to remove the whole exhaust system and all steering fluid for the work. I am going back in on Saturday for them to refit my exhaust in the center as they have refitted it all wonky. Also my battery terminal was so loose it nearly fell off !!!