steering probs

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ok, im kinda worried about this problem, cos its only started happening in the last week or so..
When i turn left, sometimes the steering at the front left of the car really cranks, and crunches harshly.. it dosent happen every time, buy still, its worrying..
what can be causing this, and what can i do to fix it?
thanks, ads

 

[The1985divo]

id say cheack your power steering fluid and then check all your pipes one could be blocked or perished

 

[chevy_big_block_bro]

i have the same problem, when i turn completly left it shudders and crunches but not every time. My coolant level was low and i filled it and it hasn't happened for a while yet

 

[adsVN]

powersteering fluid is ok, and i just changed the coolant, so maby i did it wrong or something...
i thought it was cos i jump'd a gutter at a roundabout, but i dunno...
so how can i stop this crunching? is annoying! which pipes do i check if blocked, or what do i do to the coolant?

any help will be gr8!
thx