I cant help but think its the steering box.

If it was the pump or any associated part with providing power fluid then it would do it both ways.

Is it like the sound you get if you go to right lock fully?

I
 
I cant help but think its the steering box.

If it was the pump or any associated part with providing power fluid then it would do it both ways.

Is it like the sound you get if you go to right lock fully?

I
The steering box seems ok when turning the wheel, the sound is actually more like a groaning noise, sometimes very pronounced and sometimes very quiet. Yesterday when I took it out it was dead quiet until I got back home, seems to be one of those things! I have googled it and it appears that this is not uncommon with the P38 and seems to be always left hand related....
 
The steering box seems ok when turning the wheel, the sound is actually more like a groaning noise, sometimes very pronounced and sometimes very quiet. Yesterday when I took it out it was dead quiet until I got back home, seems to be one of those things! I have googled it and it appears that this is not uncommon with the P38 and seems to be always left hand related....

Related to roundabouts?!
 
Just an update, after doing all sorts I have now tried the Lucas power steering leak/squeal stop additive. I took all of the regular fluid out and poured the bottle of additive (well, pour is a bad description, the stuff is like molasses in a snowstorm) The noise has diminished considerably, the write ups say it can take a while for it to fully work, I am happy with the near silent left turns now though!!!
 
I took all of the regular fluid out and poured the bottle of additive
Did you replace all the fluid in the reservoir, or also all the hoses and steering itself?

The steering even feels better :)
Easier to turn?

Edit: I'm having a similar issue with my Discovery 2. Is your power steering pump clean? And did you have any residue in the reservoir like me?

See my post for more photos but here's one:

res.jpg
 
Haha

Black stuff like that?

Any caught in any filters/reservoirs that needed extra elbow grease?

Maybe it was flushing the system that fixed it, not the new fluid?
I have flushed it before hoping to end the noise but no joy so definitely the Lucas stuff, I have tried other fluids also but the noise stayed.
 

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