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thunder_rob

Power steering pump noise after pressure hose replacement and bleeding

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Hello Everyone,

 

I own a 2013 Edge SEL AWD with 135 000km that I bought used with 108000km at the local ford dealership about 18 months ago.

They told me that the steering rack was changed under a recall.

 

Last week it started leaking power steering fluid, and after taking a look I discovered that the pressure hose was rusted and leaked near the rack.

It was missing little fluid, and I drove less than 10km in that situation.

I've looked through the following posts and the available videos on Youtube on this subject, and changed the hose.

 

https://www.fordedgeforum.com/topic/18265-power-steering-leak/

https://www.fordedgeforum.com/topic/7545-power-steering-leak/
https://www.fordedgeforum.com/topic/12767-how-to-change-high-pressure-power-steering-line-on-2007-edge/

 

One mishaps that happened was that I went looking for the banjo bolt torque, at the same time that my helper came to the garage, and completely forgot to torque the banjo bolt before putting in fluid and doing the bleeding process (slowly turning left and right before bump stop). After a couple seconds I realized that it was spilling fluid on the floor, not that much more than a cup or two. I then cleaned the mess and torqued the bolt to 55Nm.

 

Now, after filling and bleeding the system multiple times, twice yesterday, twice today, the pump still makes noise. Mostly when there is a light press on the accelerator, like when turning from a stop sign.

 

Earlier this afternoon, I tried the flush method provided by Mactfordedge on Youtube (https://www.youtube.com/watch?v=OOCEj3R7KIM ), and I believe that it might have helped slightly, but there is still a problem.

 

The fluid doesn't seem to have any bubbles, the color is great, and the level is right.

Do you think that my steering pump needs to be replaced?

 

Thank you very much for your help.

Best regards,

Rob

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If the noise is minor, could still be rescued, what fluid did you put in there?  I highly recommend Valvoline MaxLife Synthetic MultiVehicle ATF if you used Motorcraft/Ford Mercon fluid.

 

And welcome!

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Thank you for the fast response.

I used Motomaster low viscosity ATF, Mercon LV approved.

https://www.canadiantire.ca/en/pdp/motomaster-multi-vehicle-low-viscosity-atf-0281525p.html

I could probably change it to your recommendation.

 

However, I don't see any easy way of replacing completely the fluid to make sure that no motomaster oil is still present. I've seen one video of someone disconnecting a return line, but I'm not too sure about doing that.

Maybe removing the belt and turning the pump by hand would be less risky.

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The baster method is just fine, 100% replacement is not needed.  IDK the quality of the Motomaster, but it is probably ok.  But some fluids ARE better than others, and the Valvoline just might make the difference.  I would give it a go.

 

Good idea to check tensioner and belts now that you mention it :)  You don't have enough mileage on your Edge for those items to have a problem, but you never know!

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Thanks for the info.

I think that I will change the pump since I currently have time, and it's not that expensive on Rockauto.

 

I've ordered a power steering pump and belts(since I'll be taking them off).

I'll probably change the Motomaster fluid to Valvoline when replacing the pump.

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Quick update.

After changing the pump and bleeding, it still makes noise. Mostly when turning from a stop.

I've used the Motomaster fluid, since it's what I had on hand.

I have trouble finding Valvoline Synthetic MaxLife fluid locally. Is there any alternative to the valvoline? I can easily have Castrol https://www.canadiantire.ca/en/pdp/castrol-transmax-full-synthetic-multi-vehicle-atf-0289195p.html#srp

 

My current options are the following:

-look for pinch on the new pressure line: done, no pinch found. I'll try to release the brackets to see if they apply restriction on the line.

-replace the banjo bolt, new line didn't have a new one

-change fluid to synthetic (Valvoline, Castrol)

-take an appointment at my local dealer

 

Currently, my most plausible guess would be the new pressure line. With the old one and enough fluid, it wouldn't do any noise.

Otherwise, it could be a contamination that got into the system, perhaps the rack itself.

 

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Was you able to fix the power steering whine issue?

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Well the power steering issue disappeared when I changed my edge for a 2019 F-150 3.5 XTR.

image.thumb.png.b1566c846268d0f1759f0c7de311ad7d.png

 

In the end, the pressure hose was new, the dealer changed the banjo bolt and I did a bleeding and the noise was still there.

It might have been the steering rack.

I'm sorry that I can't give you a more helpful answer.

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