Grinding noise when on full lock

[Gonaget]

Grinding noise when on full lock both left and right, my Yaris 4 door manual 2010 Model has always had regular services -- always at the dealer --and has always been looked after only noticed this the other day in a tight parking spot.         Thanks for any help

[trentmeyer23]

It is best to stay off full lock as much as possible. The pump and the pressure relief valves will thank you for it.

Get it to a steering specialist and have them have a look at it. The pump may be on its way out.

[Gonaget]

Thank you Trentmeyer, 

yes I agree and it was just the other day when I had no choice in a tight park -- I have tried this at home and am not getting it here so thought it MIGHT have been the surface I was on which was a very polished cement ,  so I went back there and sure enough it happened again -- so I think it must have been surface slipping?   What do you think?

Edited May 2, 2017 by Gonaget
wrong spelling of a word

[Gonaget]

Thank you Trentmeyer, 

yes I agree and it was just the other day when I had no choice in a tight park -- I have tried this at home and am not getting it here so thought it MIGHT have been the surface I was on which was a very polished cement ,  so I went back there and sure enough it happened again -- so I think it must have been surface slipping?   What do you think?

[trentmeyer23]

If it was polished concrete, then I would say it is the tyres slipping.

[Gonaget]

Yes,  thats what I thought when I took it back to where it 1st happened but thank you Trentmeyer for your trouble, much appreciated.