406 steering not centralising

[Johnjo]

The steering on my 04 406 hdi has stopped self centralising after being turned. With car on lift i disconnected both track rod ends both front wheels pivot to and fro with no resistance. A s/hand steering rack was fitted but did not cure the problem all knuckle joints were checked and found to be free. A part from this car car drives and steers well. Can any 1 shed some light on this please Best Regards Johnjo

[steve_earwig]

So the only bit you haven't eliminated is the steering column? Maybe the UJ, we've had one or two on here that have gone stiff, usually a hard spot when the wheel's turned but I can imagine that as not wanting to centralise. Other than that, maybe the steering geometry's goosed