Something in my driver's side front suspension has a brief knock sound emanating from it and almost feels like some joint or fastener has play in it a small amount when the knock sound is heard.
Basically I'm parked forward facing in a carport with a driveway perpendicular to my vehicle. I reverse to the left, turning my steering wheel counterclockwise. I then brake when reversed enough, shift to drive, turn the wheel clockwise and when my vehicle is something like 45 to 30 degrees off from straight down the driveway I get this knock sound just as I'm advancing and turning into the driveway.
It's getting more frequent, so something is loosening up. Going to jack up the car soon and start tugging on parts and rocking the wheel round and checking bushings, tie rods, knuckles and the like.
I'm wondering if the described behavior would suggest to anyone one particular part that's likely to yield such a sound having been loaded and stressed in the directional fashion my reverse and forward driving would setup. I haven't heard the knock in any other driving pattern, but consistently in this left reverse, forward drive transition period. I drove around a parking lot the other day in random circles, to the left an to the right, nothing much for sounds.
We're dealing with a 2005 Volvo S80 2.5T vehicle if that helps.