How Hydraulic Power Steering Works

Here's how hydraulic power steering works on your car!
Check out my behind-the-scenes of the making of this video here:
• Behind the Scenes of Y...
Hydraulic power steering is used to assist the turning of the wheels on modern heavy vehicles. A power steering pump provides pressure to hydraulic lines that connect to the steering rack. The rotary valve uses driver input to determine which side of the steering rack to send hydraulic fluid to. The rack has a piston inside that moves in the direction that high pressure fluid is applied. Finally, the hydraulic fluid completes the circuit back to the reservoir to be cycled around again.
Get your power steering fluid here:
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Replacement hydraulic lines:
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Replacement power steering pump:
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Steering Rack:
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This is the Camera I use:
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www.etsy.com/ca/shop/Speedkar
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[@speedkar99]

Check out the behind the scenes making of this video here: kzbin.info/www/bejne/j5_EkHh5qbSnmJo

[@miguelare3]

What did your wife bring you to eat?

[@glasser2819]

here is to wife: "Behind every great man, there is a great woman." - Here it shows! Thank you. 🤗

[@jc.1191]

Could you do some videos of the different fluids in vehicle systems?

[@amsyarazhar7865]

Which part determines the power steering weight of the steering rack? Is it the pump?

[@elebeu]

I am always impressed with your videos. You know what you're talking about, you cover the subject completely, and you throw in a little comedy. Well done again.

[@speedkar99]

Thanks! I'm glad you appreciate my work.

[@spelunkerd]

Ha ha ha ha, I finally understand how this mechanism works. I always wondered how the power assist knew when to stop, ie how to prevent pressure assist from steering beyond where the driver wants to go. It's all about that little torsion bar. As soon as the steering wheel is released, the torsion bar springs the holes back to a neutral position so no more pressure goes to the side you're turning towards. Genius.

[@speedkar99]

It's so intricate yet simple on how that little torsion bar does its job!

[@juvenildr]

Yes torsion bar backs to neutral position but how it is turned when moving? is there a clutch like system ? if released how the gripping is over? i understand the mechanism but i wonder the details.

[@Jamie-cz2xu]

@@juvenildr it puts pressure on the side of the steering that you want to turn it, it wont turn the rack by itself, it just puts pressure there to help you turn the steering easier.

[@Toleich]

7:55 "Because it's rounded off using this wrench, I'm gonna have to use another wrench to get it off." Love the dry humor!

[@popo-yq5je]

"Thanks wife .." Aaww..that so sweets...

[@speedkar99]

So helpful 👩‍🍳

[@voidisyinyangvoidisyinyang885]

she must have seen you just wipe up the steering fluid with her clothing. Oh he must need some oj!

[@Kana0211]

Oops I sprayed my wife

[@MoritzvonSchweinitz]

The torsion thing! THATS what I was missing in my understanding of how these things worked! Thank you! As always, a great explainer video!

[@speedkar99]

Agreed, that's the key to the steering rack, there's not much else to it

[@aimilios439]

Me too man, had to watch dozens of videos to find out; this man did a great job!

[@luissilva8732]

jesus. for years, even through school as a mechanic noone was ever able to explain to me how the decison of witch path the oil should take was made. the freaking torsion valve. god dammit. that one little pieace. 10 years this has been bugging me

[@kingdomofpom2737]

You and Scotty Kilmer and Chrisfix You guys are sure master tech👍

[@speedkar99]

I'm not a tech. I'm an engineer

[@glasser2819]

@@speedkar99 most people think all gear heads are created equal.. LOL. The practicality of your presentations is great! 👍

[@ocdgamer9866]

7:52 * Nut rounds * "...I'm gonna have to use another wrench to get it off". * Proceeds with angle grinder *

[@speedkar99]

Seriously....I wasn't expecting that nut to round out but my angle grinder sure did. 😎

[@sivalley]

Angle wrench!

[@gabelcojo]

Everyone, watch the behind the scenes of this video (the link is in the description). You will be amazed by the amount of time he spends researching, filming and editing, just to end up with a couple of minutes of video. I'm impressed! Well done, sir!

[@speedkar99]

Thanks! Linked here as well: kzbin.info/www/bejne/j5_EkHh5qbSnmJo

[@HorribleOldCrank]

I had to LOL when your wife let out a little yell when the power steering fluid shot out of that rack.

[@speedkar99]

Haha yep she got a squirt

[@akhtarkh]

One of the best explanations of rotary control valve operations. Many youtubers skip that part bcz they don't understand themseves the operation and importance of this part as the heart of power steering system.

[@speedkar99]

Thanks glad you appreciate my work

[@andreasguntoro5399]

I always like fluff less videos like this one. Full of info from start to finish. Thanks

[@Taylorthegreat17]

Currently studying for an IP exam, this was very helpful. Thank you.

[@elementhearts9810]

Ok wow, this was so helpful! Definitely gonna be checking out other videos, taking a course in mechanics and you have helped me so much! I really appreciate it!

[@howtobebasic2122]

3:11 your wife brought you some lunch XD

[@speedkar99]

Yep, that helped me power through this one hehe

[@dibblesvillard5268]

@@speedkar99 I assume she didn't notice you using her pants

[@halityagloglu6258]

I am always impressed with your videos. As always, a great explainer video!Thanks a ton!

[@LightIySaltedPeanuts]

As an engineer, your video is the only I've found that explains the mechanicals. All the others talk about theory. Cheers

[@ethan_djoseph]

this is so perfect. the speed. the explanation

[@tasJis]

Fast and informative, just the video I was looking for, thank you.

[@cmingo85]

Really good an clear video man! It shows that you really enjoy and know your work

[@cadibiagio66]

Awesome in depth explanation of the system. Thanks a ton!

[@speedkar99]

You are welcome

[@arnavrevankar444]

Even though I knew how this works, I was waiting for u to make a video on it 😊

[@speedkar99]

Glad you enjoyed it

[@CaptainFalcon92]

How is it that only You show the inner working of the rotary valve and torsion spring? Thank you for teaching us. Very comprehensive as usual

[@speedkar99]

I agree, I was looking for more information on this and couldn't find it. The only way to learn is to tear things apart.

[@williamlovemo8596]

this is the best explanation i have gotten on hydraulic power steering. Even better than my teacher's. thank you! :)

[@nonyadamnbusiness9887]

Another very nicely detailed explanation of inner workings.

[@speedkar99]

Many thanks!

[@coldgarden_]

This is a great video, thank you for explaining everything so well.

[@Papsirpc]

Thanks a ton! Awesome breakdown, one of the best. Appreciate the time and discs you went through for this!

[@speedkar99]

Glad you enjoyed learning about steering!

[@spiritadvertizing6632]

Thank you for your.most comprehensive presentation. I stumbled onto your presentation by accident. Consequently I can say thank God for accidents.

[@speedkar99]

Glad it helped!

[@annemissluna2330]

Congrats. Nice explenation🤙

[@Jamie-cz2xu]

Wow this was amazingly informative.

[@MrRadbadger]

Love those precision 5-inch wrenches. Guaranteed to remove any bolt👌

[@speedkar99]

Right on!

[@Graham_Wideman]

Well done speedkar99! Your video really reveals and explains how the hydraulics assist the steering effort.

[@speedkar99]

Welcome

[@MarkZielonko]

This is a really well done video! Awesome job!

[@speedkar99]

Thanks

[@jordanbriatte9078]

That was very clear, thanks mate !

[@robertorochamartinsrocha7041]

You are the best explaining things... thanks

[@speedkar99]

Glad you enjoyed it

[@Fireneedsair]

I love your videos. So thorough and funny! Repeat viewings for me as you go fast and I’m slow

[@billb.4901]

I learned a lot,Great video;thank you!

[@antispace765]

excellent video

[@deveravi]

Now I know. Thanks for making it easy to understand.

[@Ashoud_Anobetah]

Fantastic video as always !!

[@speedkar99]

Thanks

[@vitej8591]

Great video!

[@falihalkhafaji8044]

Amazing explanation

[@speedkar99]

Thanks

[@DavidSanchez91752]

Great explanation. Thanks.

[@speedkar99]

You're welcome!

[@fernandoanatomia]

Very interesting video! Thank you!

[@speedkar99]

You are welcome

[@tomasvit9466]

absolutely perfect explanation - They should call you Car Professor :)

[@speedkar99]

Nah I'm speedkar99

[@user-om8hz4mp4u]

I like you man. and respect to the wife. this is one of the moste instructive useful channels.

[@charlie_nolan]

Thanks! I didn’t realize it was a valve with constant pressure. I’m guessing variable assist systems are more complex. Do you have a video on that?

[@cristiancruz5079]

Wonderful forensic analysis of how the power steering works...I have some knowledge about the rack, but with your video all my unknown content disappear from my head...Now thanks to your video i have plenty of knowledge how it works. Thanks a lot for your video. Sorry about you wife getting messy because of your Power Steering Rack autopsy. She deserves a new dress and a dinner out invitation. ;-)

[@speedkar99]

Glad it helped you learn something. Yes she deserves some dinner now 😉

[@seshachary5580]

AWESOME EDUCATION. tHANK YOU rEGARDS

[@beongjoonkang3639]

Thank you as always!

[@brianpetersen3429]

Excellent taredown explanation.

[@speedkar99]

Thanks

[@frankseprino8610]

Very informational. Appreciate the cutting to reveal each component. Did talk just a little fast though. :)

[@nareshhellyhelly1338]

Really legend in explanation

[@gmindgjerd]

I adore your wife. Lucky man. Thank you brother. Learning alot from you.

[@tajuano]

Thanks for video.

[@TheTec12]

That comment about his brothers underpants gets me every time. lol

[@bleedngheart]

awesome awesome video, thank you very much

[@tybrownsr.4466]

Awesome! 🔥🔥🔥

[@Guss0531]

Great video

[@speedkar99]

Thanks

[@akshayprabhugaonkar]

Hello from India. Very informative video, especially the torsion bar thing. I have a strange issue with my humble ford fiesta with hydraulic PS. I find steering assistance is a bit more than I would have liked. Car turns tack sharp but I'll love to put some more effort in turning. I got a new rack, suspension kounts, struts to fix some of the other issues but this one is giving me a tough time. Any suggestions?

[@mohsinraza2491]

hi there, You made a very detailed video and many thanks for explaining that. I have a question regarding the failure you mentioned at 6:12. That failure could be due to a torsion bar or hydraulic pump or steering rack seal leakage, I am facing this hard steering problem in my car these days and I am wondering if you can help me answer this in order to fix my car. Many thanks Regards

[@arthurpridanovs2336]

great vide , thanks

[@darkportus]

Thanks for the info. Very nice 👍!

[@speedkar99]

Welcome

[@standhd]

“Thanks wife”…..I can’t stop laughing…..LMAO!!!!

[@speedkar99]

Gotta thank her for all the support

[@tybrownsr.4466]

Brilliant!

[@moizmughal5363]

learn alot from you best wishes from pakistan

[@speedkar99]

Glad you learned something new

[@VoidAndTheVoid]

Amazing!

[@kindbrute4640]

lawd your humour kills me, dude

[@speedkar99]

Love it

[@abdoudfi8205]

Good job u are the best 👍👍👍👍👍👍👍

[@speedkar99]

Thanks I sure am

[@martincervantes1954]

This is great 👍

[@briant-bag8893]

Nice explanation. Try to explain to me what happens in the catalytic converter

[@ntamichael9343]

Lovely video, I just want to ask, can the pinion gear make the steering to be hard of stiff, I use Mitsubishi Montero 2004 limited and the steering is stiff, we have changed the power steering pump still stiff, the mechanic said it is the steering rack pinion that is faulty, can the steering rack or pinion make the steering to stiff. And there are no leak on the rack at all.

[@nigratruo]

And this here is my brother's tooth brush. I could not find his old one, so I took his current one, I'm returning it after I'm done. WOW, it is my o-pinion that this is a great rack on that steering!

[@speedkar99]

I'm not gonna return it and see the look on his face

[@umarshahbazahmadumarshahba3612]

Very helpful

[@speedkar99]

Glad it helped

[@sourabhharit2442]

this video is so underrated

[@adrianodeassuncaorodrigues7374]

Muito bom esse vídeo

[@sonicdewd]

Kewl beanz. Well done.

[@vishnuprasad5048]

Just a quick question. When you steer to the complete left or right (when u reach end) the high pressure fluid would be still directed towards that direction. What is the mechanism that will prevent the pressure build up and return the fluid to the return line?

[@krisdadabmetha1899]

Wife made VDO perfect!!

[@joseyjenkins6049]

This is a badass video. I subscribed lol

[@speedkar99]

Awesome thanks

[@M3GAN3116]

Thanks 👍

[@AK-Star007]

great video, do a follow up video doing camparison with electronic power steering.

[@speedkar99]

I already have an EPS video linked in my video

[@AK-Star007]

@@speedkar99 i have seen that video. i meant a side by side comparison.

[@chathushkas]

thanks man

[@speedkar99]

You are welcome

[@mrudukumarp5643]

Best vedio 👍👍

[@speedkar99]

Thanks

[@davegeorge7094]

If you blow piston with low pressure air there will be allot of blow-by the rack piston hard seal ring . Fluid pressure expands the seals I suppose to a tighter clearance.

[@trey1531]

Can you do a video on how the clock spring on the steering wheel works.

[@speedkar99]

I already have one

[@repairstudios6748]

When installing pinion gear, do I have to adjust the fluid holes or not? or it can be installed directly without considering the fluid path

[@teemum.9023]

Thanks for your educational video. Could you help me by identifying a noise from the pump. It´s been replaced by a used 71000 km pump. The same noise of high strain state to pump persists. It appears when not turning. When turning the wheel, the noise changes loader and quieter and it gets a little stuck at high sound parts. It happens more when the system in cold and makes no noise at all when warm. The noise returns after shutting down for a few minuts. No leaks. Fluids are new. The left front wheel was replaced because of rim damage, and same wheel´s control control rod´s end part was replaced. Perhaps the new pump was damaged due to lack of bleeding as it was changed by the mechanic? Or is the center rod bad? Chevrolet Matiz 2005 1.0 L has no electric motors in the steering column.

[@rudolphguarnacci197]

Had to check my top drawer. Those shorts look a lot like mine.

[@speedkar99]

Whoopsy

[@tedroyal6988]

Nice

[@undergroundsubs9681]

Excellence 🙏

[@collinwest4291]

That was nice

[@davegeorge7094]

Wheel effort makes pressure increases actuating idle air valve open to increase engine rpm to compensate 85 Supra.

[@servistools6254]

Thanks

[@a_Wahsh]

what is the name of "oil seal" that prevent oil from the steering pump to go away in unintended direction in the rotary valve? is it called a oil seal? and is it effective to replace it or replace the whole rotary?

[@aaronhuber5299]

More informative in the first 2 min. than the 8 videos I watched before this combined. Answered everything I wanted to know. Thanks Mr. Speedkar- you, your wife, and your brother's stolen underwear are legends

[@jijidinpipera]

So, the higher the pressure of the liquid, the easier will make a turn the steering wheel ?

[@speedkar99]

Yes. And that's why the pumps have a flow control valve.

[@craigwolstenholme2166]

So how do I lighten my rack ? Change the control valve for a bigger one to let more fluid around?

[@on-site4094]

Great educational demonstration ,,,and the out come is the power steering rack is now scrap metal 😆

[@speedkar99]

Yep, I'm making the most use of this scrap car.

[@Erik_Swiger]

@7'45 ... I'm laughing hysterically