Power Steering "Groaning"

[MCRENT]

(04-12-2018 )bossboy2 Wrote:  

(03-21-2018 )MCRENT Wrote:  You might try turning the wheel lock to lock and hold it on each side for a couple seconds.. If you got air in the system when you did the service a few months ago it might cause the ugly noise. I learned this many years ago when I was a young fellow.. Seems to get the trapped air out.

Thanks Mcrent. Can you be a little more specific? Are you talking about sort of bleeding the system?

Sorry for late reply did not see your question. I have the engine running and turn the wheel as far left as possible hitting the stops and letting it sit against the stops for a few seconds( the growling noise will change a bit to a higher pitch) then turn all the way to the right and repeat. Then do again to the left if necessary. I had to do this when I change the fluid and filter in my 2013 Peterbilt. Has not made a peep since. My feeling on this is when you turn all the way to the stops it purges any air out of the system. I could be wrong but it has worked on several cars in my younger days and also on my Pete recently.