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      11-14-2011, 03:29 AM   #20
Bimmerlover76's Avatar

Drives: 2009 335i Coupe
Join Date: Oct 2011
Location: Kalamazoo, MI

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Originally Posted by berserkerx View Post
Do you full lock your steering wheel a lot?? Maybe I am just old school from my dad but he would rip me a new one when I would full lock my wheel as I was turning. Told me it would screw the pump up doing that. So I go to full lock then back off a little bit. I can hear this noise on mine a little bit but to me I always figured the noise that I was hearing is just the steering pump straining when I am at full lock and trying to cut pressure.
I agree. It's common knowledge to never bring it to full lock and hold it there. I'm assuming it's because you're forcing the PS pump to work against too high of a resistance and it's straining. Maybe due to this, the belt is slipping on the pulley.