Diesel Place banner

1 - 3 of 3 Posts

·
Registered
Joined
·
549 Posts
Discussion Starter #1
I have noticed after the truck warms up after a long run when I
de-accelerate and apply the brake I get a "whining" noise from the hydra boost. It does not do this when cool only when hot and after I have been running at highway speeds. It only makes the "whine" or droan when I apply the brake, as soon as I let up on the brake the noise goes away.

I have searched and others have reported this but I didn't see a possible fix listed.
 

·
Registered
Joined
·
490 Posts
My does it too. Dealer tech told me it was normal? It has not been a problem but I had them note it.
 

·
Registered
Joined
·
21 Posts
My truck also does the same thing after about a 140 mile trip, almost like the power steering pump is sucking air from somewhere causing the moaning when turning or applying the brakes after driven at highway speeds for a long period of time.
 
1 - 3 of 3 Posts
Top