My 03 does it as well same thing turning left low low speed,I tore the left wheel apart,I found nothing wrong at all,brakes, cal's,U joints,no stones in it,nothing,unless the ball joint is dry I have no idea what it is.

I have been told to grease it but my truck does not have that weird little reverse fitting in there just a little dimple but no fitting so if it's that I hope when it goes it's not at highway speed.

Pav

 

My 06' wines loud also at low speed, what could this be? Seems alot of trucks are havein this problem!

 

and you used p/s fluid? not atf right?
atf will cause howl.....

 

03s up call for atf+4 in the powersteering if I'm not mistaken.The older trucks called for the "other labled powersteering fliud"

 

Thats what the dealer told me and sold me when I picked up the pump...Mopar ATF+4. I hope thats what goes in there..

I still have noise while turning, , I'm about to give up and wait for something to break....then I'll know what to fix!!!

 

Are you sure it is a pump noise? If it is you should hear it with the brakes applied as well. It could be a dry tie rod end or ball joint squeaking. Gonna have to spend some time underneath of it to find out. Try turning the wheels with the engine off. Its hard to do, but that will eliminate the pump. Block the wheels and put your hand on the tie rod ends and ball joints while someone turns the wheel too, a lot of times you can "feel" it as it makes the noise. Maybe this was covered before, but check it again.

 

Also look at the alternator bracket. They have been known to crack and let tension off of the belt. Biggest thing is need to find out if it is a suspension noise or engine/belt/pump noise.

 

wow... i guess so, i double checked factory svc man. yep atf+4..../////?

i know ill use ps fluid any ways when i get around to flush/fill it... no need for friction modifyers etc in there..

never a noise out of any system in 20 years that way... even on notoriously noisy ferds..

 

You also should look at the hydrobooster. I had to replace mine because of that problem. Maybe the accumulator in the booster let go. Try turning and stepping on the brakes at the same time, apply the brakes then release. If you can get the noise to stop/change while you apply the brakes (try different brake apply pressures) and steer at the same time, you can be pretty sure it's the booster. Another way to see if you accumulator is OK is to start the truck, run it for a few seconds then shut it down. Pump the brakes a few tiimes slowly and see if the back pressure changes. Or you can let it roll down hill in neutral with the engine off and see if you still have power brakes with the engine off (for a few pumps anyway).

The accumulator holds high pressure nitrogen in a small resevoir so in the event you are driving down the hwy and your motor dies, you will still have power brakes for 4-5 pumps to safely come to a stop. If the nitrogen leaks out of the accumulator it will infuse into the fluid and cause whining noises or in my case it sounded like a loud air leak when I turned, especially at low speeds. But I could hit the brake pedal in mid turn and make the noise change/stop.

Good luck!

 

Thanks...I'll try this and see what happens...Is a hydrobooster expensive? did you change yourself, if so, how hard was it to do?
I tried to do this earlier on my way to town because Dad thought it could be a brake pad sqeeling(sp). It seems I could make the sound change pitches or stop, but couldn't tell for sure.
My noise is more of a chirping/sqeeling(sp) noise, not so much a whine or an air leak....I dunno?????
I'll try again and see what happens.
Thanks!

 

Well chirping or sqealing would likely not be the booster. To answer your question, the booster is very easy to replace, I did it in about an hour, but if I recall correctly the part was about $350-$400. However it doesn't sound like that is your problem, but check it out anyway. The dealer wanted $1500 to replace the booster God I HATE dealerships.

 

I know what you mean about the dealerships. I'll keep replacing parts myself before I ever go to the dealership.
Thanks again for the tip, I'll check it out tomorrow.

 

"I can't believe out of 38 people, nobody has any suggestions.....Come on guys I'm willing to try just about anything here.
I'm just looking from some experienced opinions on which way to go.
Pretty, Pretty, Pretty, Pretty, Pretty, PLEASE!!!!!!"
------------------------------------------------------------------------
I posted this the last time you asked (in case you didn't see it) ... it only takes a few minutes ... tap a zerk fitting on top of each of upper ball joints (where the dimple is now) and fill em with grease. Very simple and quick and it MAY work. It solved my "chirping". I too was surprised.

 

The hissing is more than likely the hydrobooster. Dealer is replacing mine under warranty. Says going to take two weeks to get the part, but i believe they are lying about that will check tomorrow on part availability.

 

I agree about the hissing, but he says it's more of a squeal or a chirp, neither of those sound like a booster to me