Strange Noise On My P38

I have a problem with my P38, when its parked up and has stud over night it makes a strange noise. It comes from the passenger front wheel area and sounds like something is sticking on, the noise only appears when the steering is turned to the left on about half lock and lasts about 5 secs, then you don`t hear it again untill its left. Looked at the wheel and its not catching anything and can`t feel anything threw the steering wheel when it happens.

check and grease caliper sliders, quick and cheap to see if sliders are partially seized