That doesn't sound normal at all to me. I looked/drove at quite a few before purchasing and never heard a noise like you're describing.

 

what the heck? has everyone gone crazy on this forum.

every word gets picked to bits I never said it was loud or noizy what are you people talking about?

Get a grip

 

98Dak, I think he was referring to my description in my original post.

I got it back today with the 3rd pump, it is much better than it was, but still whines when you turn into and out of a parking spot, which doesn't bother me as much as the fact that it still has a high pitch whine just going straight down the road.

If you start from a light it winds up with engine RPM then down with a gear switch, then starts to wind up again. Goes through the whole gear range like that. That is what really drives me crazy. It's like if you ever had a bad ground on your radio and there was a high pitch whine that followed engine RPM.

They claim this is the best they can get it that they vacuum bled it, but then the guy says I had 2 guys on it, one guy was turning the wheels when it was up in the air and the other guy was bleeding. I was like vacuum bleeding has nothing to do with turning the wheels. He just corrected himself and said they bled both ways, which would be pointless to do.

I have absolutely no faith that they vacuum bled the system. I ordered the tool myself and am going to do it myself.

Has anyone ever had this kind of p/s issue?? I mean I have had over 20 vehicles, some were real pieces of crap too, and never once have I ever had a p/s whine like this, in fact I've never had a p/s systems make ANY noise at all.

Instead of listening to the nice 4.7 noise while driving all I hear is a high pitch whine, like the subway starting up or something. Really making me crazy!!

 

You sure it’s the pump?

I’m not familiar with that pump I don’t have the V8 have you replaced any of the lines maybe something is stuck in one of the lines or you have pinched lines look at everything connected to the pump I’m thinking it’s not the pump.

If its loud to me that says the pump is straining to get the job done something is impeding the flow of the fluid.

But something in the steering system is wrong not the pump.

Excuse my outburst sorry.

 

I've replaced everything. New rack, new high pressure line, 3rd new pump and reservoir. There has to still be air in it. I'll find out when I get the tool to vacuum bleed.

 

I have heard that almost all the rebuilt rack and pinions are not the greatest not sure why that is but a lot of people have had to replace them two or three times before they get a good one.

So I’m scratching my head on this one but something is not right you know it and I know it but you have replace the pump a few times so all it could be is the rack maybe it’s the bad component not the pump.

I guess the rebuilt racks are like all rebuilt things... not the best at dependability.

New is always big bucks

Is the V8 harder to get the air out my system was fine with just turning the wheels back a forth a few times no special tool or bleeder.

 

I don't know if it is harder on the 4.7 or not, I just know that Chrysler put out a specific TSB for dealing with the bleeding of their p/s systems, and this $16 tool was all that was needed, along with following the correct procedure.

After 3 pumps, a high pressure line and a rack, the truck sounds exactly the way it did when I first bought it and it had all original factory parts on it with 95K miles. Not one single difference has been made to the whine. I've had a few people tell me it's just how the 4.7 sounds, just how those pumps sound....and I've had a few tell me no way is that how it's supposed to sound, it's supposed to be quiet.

I've also had mechanics with 30 years of experience tell me that they vacuum bleed EVERY Chrysler vehicle that comes in the door with a p/s issue, they let it sit overnight under vacuum and it's the only way to get ALL air out. I just figured the dealer would know that, considering the TSB is directed at them.

At this point all I can do is wait for the tool and vacuum bleed it myself and see what happens, if it doesn't work I don't know what I'll do. I really can't enjoy the truck with this whine, we might have to part ways.

 

Dakmm,
I know exactly the "whine" noise you speak of, my 4.7 v8 2000 Dakota has the same sound. Was about to order a new pump 'til I saw this thread...did you get the tool and did it fix the issue?

 

I dont have a wine from mine; just a hisss sound a like a vacuum leak.. cant track it down but def. coming from the pump "area"

 

Hey sorry I forgot to post an update. The vacuum bleeding didn't do a thing, fluid never dropped and no additional air came out, I can see how it would work well if there were air trapped in the system though. If you want to vacuum bleed I suggest making your own tool as the one I ordered doesn't fit the Dakota reservoir, I had to modify it a bit to get it to work, but when it did I was able to hold 25" of vacuum overnight, so at least I know there are no leaks in the system.

I went back to the dealer and was finally able to get them to give me a brand new factory Mopar pump, no charge and no labor. It is being put in right now, so I will update when I get it back, although I have zero faith that it will work and have no understanding of why the hell I cannot get rid of this whine. I saw the pump when I dropped it off and it is definitely a brand new Mopar pump, so we'll see.