So first off my PS pump was leaking from the pump itself . Got a new one threw it on. Didn’t know I had to bleed it . Took it for a drive first right turn I got a crazy noise . Took it back home and took a video. Looks like the pulley just stops spinning . I did some googling so I hacked it up and started bleeding by turning the wheel back and forth . Saw bubbles did it for like 10 minutes .gave it another go and now the noise only comes on full lock out . Any thoughts or suggestions would help ...

91 pickup V6 3.0 sr5 2wd drive automatic .... black

 

First, I notice your (after-market?) cap reads "Power Steering Fluid." The Toyota power steering system requires ATF, not PS fluid (and so it says on an OEM cap). Most of us think using PS fluid causes the seals to leak, but I don't know an authoritative source. But I DO know what Toyota requires.

In your case, it sounds like the pump is stalling, so the noise is largely the belt slipping. The pump should not stall at full lock; a pressure relief valve will prevent that, though the noise will definitely change.

I'm sorry I can't be of more help.

 

uh oh . I put ps fluid in it . Can i just drain it at all ?

 

So I tightened the tension on the belt in a very Mickey Mouse way basically tilting the pump until the tension was a lot tighter on the belt. The squeak is pretty much gone but you can still hear a little something at full lock.. I really couldn’t figure out how to tighten the tension with the adjusting bolt .

another problem I’m running into is I can’t seem to get rid of air bubbles in the reservoir. I jacked it up and turned the wheel side to side for a good while . But the bubbles seem endless . Any suggestions on that ? The hoses all look fine and tight no leaks I can see .

Thanks

 

So I tightened the tension on the belt in a very Mickey Mouse way basically tilting the pump until the tension was a lot tighter on the belt. The squeak is pretty much gone but you can still hear a little something at full lock.. I really couldn’t figure out how to tighten the tension with the adjusting bolt .

another problem I’m running into is I can’t seem to get rid of air bubbles in the reservoir. I jacked it up and turned the wheel side to side for a good while . But the bubbles seem endless . Any suggestions on that ? The hoses all look fine and tight no leaks I can see .

Thanks

 

Eagle eye scope! Good catch on the cap, was only in the image for a half second. lol.

El-gut, as you reach full lock more force is put on the whole system and so the pulley gets harder to spin which leads to the slippage. Once you fixed that you should have to worry about the little noise you hear now. In my experience all hydraulic systems make a soft buzzing sound when their capacity is reached and that's what is happening when you go to full lock and continue to put pressure on the steering wheel. Do you get a soft buzzing sound AS you are turning the wheel and it gets louder when you reach full lock? Also, when you are at full lock you can feel and hear this in action. As you out pressure at the end the noise gets louder, and once your elease that pressure but still at full lock it goes away.

THe oil, just drain and change. You do not want to accelerate the steering gearbox seal deterioration. It's not a cheap repair.

I know all that about the PS system but I do not know why a good working and bled system makes some soft buzzing sounds as you are using it regularly, not at full lock. Min has slooowwly started to do that.

 

yea I’m assuming it’s because the belt was lose. Once I tightened it like I said in a Mikey mouse way tilting the pump towards the engine .it tightened the belt and the sound went away and I could steer to full lock and barely hear the noise anymore . I can’t seem to keep the pump straight and tighten the belt ..it’s real lose . Any ideas on that ?

 

scope i have a 93 4runner was leaking and making noise .bad o ring under resovoir and previous owner had installed too large of a belt.replaced o ring free,bought correct belt $9 operates like a dream.

 

Assuming you have the correct mounting, it is not easy to put some force on the pump to tighten the belt. I resorted to using a jack. I placed it under the car and carefully put a pipe from the jack to under the pump. Jacked it up until I had sufficient force on the belt and bolted everything up tight.

 

the pump is very easy to move when i loosen the long bolt and the adjusting bolt that is on the bracket that connects the pump to the mount ..

the only way I can make strong tension on the belt is tilting the pump towards the engine ..

what you’re describing is that for a 3.0 v6?

thanks

 

Am I possibly loosening the wrong bolts? Using a Haynes manual . And googled the hell out of it ... I’m lost

 

Here's a drawing of the 3VZE PS pump mounting. http://web.archive.org/web/201102060...11powerste.pdf There are only two bolts; I'm not sure how you could get the wrong ones. And I believe the Haynes manual has the same drawing. The spec belt tension is only 60-100lbf http://web.archive.org/web/201207101...10onvehicl.pdf (about the same as the other belts); using a jack to tension it sounds like overkill. I used (gently) a simple pry bar.

But hey, how do you know what the tension is? I have this gadget . But I haven't used it yet (how's that for a worthless product endorsement?)

 

Funny scope, I purchased same tool and have not used it once. We seem not to care about the exact tension enough?

Just because I used a jack doesn't mean I overtorqued. In my head that was easier to do than fit a prybar .

Yes I am talking about 3VZE setup

 

yea that’s the same drawing so it’s bolt 58 and 39 right? When I loosen those though the pump is very easy to move.. so am I just loosening them too much?