How to Test For a Bad Brake Booster / Brake Booster Testing

Подписаться 107 тыс.

Просмотров 1,5 млн

50% 1

In this video show how I test for a bad brake booster and check valve. Testing a brake booster for leaks is pretty easy and doesn't require a bunch of tools. The exact vehicle in this video is a 2002 Toyota Tacoma pickup truck. Enjoy!
P0171 diagnosis on this truck: • P0171 Trouble Code: Sy...
Be sure to subscribe for more tool and car repair videos!
/ bigdog50001
Buy Big Dog50001 T-Shirts, coffee mugs and other gear here!
bigdog50001automotive.mysprea...
/ bigdog50001
/ bigdog50001
The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog500... (As an Amazon Associate I earn from qualifying purchases).
Disclosure: This channel earns a small commission using some of these links - at no additional cost to you.
Tools used:
OTC 5213 pressure/vacuum gauge: amzn.to/2GZJgVM
Want a free Big Dog50001 sticker? Send an email to bigdog50001@gmail.com requesting a sticker. Sorry, no international addresses or automotive questions.
Have something you would like to send to Big Dog50001?
Send it here:
Big Dog50001 Automotive Channel
P.O. Box 726
Cortaro, AZ 85652
2019 Epidemic Entertainment. All rights reserved.
Disclaimer:
Due to factors beyond the control of the Big Dog50001 Automotive Channel, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. The Big Dog50001 Automotive Channel assumes no liability for property damage or injury incurred as a result of any of the information contained in this video.
The Big Dog50001 Automotive Channel recommends safe practices when working with power tools, in on or around automobiles or other vehicles, automotive lifts, lifting tools, jack stands, electrical equipment, automotive modules and systems, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of the Big Dog50001 Automotive Channel, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not the Big Dog50001 Automotive Channel.

Авто/Мото

Опубликовано:

25 июл 2019

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 716

@BigDog50001 Год назад

Check out The Accord Project videos! Link to Part 1: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Q5FUVJTCDnY.html Link to Part 2: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LXgKbk6HABA.html Link to Part 3: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oT3QwC5GKh8.html Link to Part 4: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vmV4NRvHYX0.html Link to Part 5: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JTOwrZ1cxt4.html Link to Part 6: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vDWx73DG3gY.html Link to Part 7: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zKyk30TkKng.html Link to Part 8: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-x_q4a-DjDZo.html Link to Part 9: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-x-TA0U8sY4o.html

@bramblewoodhall4757 Год назад

Brilliant! Greetings from rainy England. I was stuck trying to fix my brakes on an Audi A6, which would work fine but occasionally suddenly fail. This was not improving marital harmony. I watched your video, where you explain how the servo assist system works and how to test for faults. Armed with this knowledge, I strode manfully to the carpark, where I had abandoned the dangerous car. Problem solved! - the vacuum feed pipe was not tight in the rubber tube that goes through the bulkhead to the brake servo. I wrapped ptfe tape round the serrated pipe end to make a tight seal and added a tie wrap round the rubber pipe to stop it coming off. The brakes work much better now. It was knowing how it worked that enabled me to diagnose and then to fix the fault: thanks for sharing the knowledge.

@eddiemercado9310 Год назад

Thank you for sharing this information with us 🇺🇸

@Bozemanjustin 2 месяца назад

6:07 mine is firm with the car off, turn the car on drops almost all the way to the firewall

@gvjester 7 месяцев назад

WOW!! Learned more about brakes in this 10 minute video than in the last ten years! You are the brake GOAT! MANY THANKS!!

@ryszardjacekrusniak7993 3 года назад

It explains EVERY aspect of testing the brake booster. Thank you,

@BigDog50001 3 года назад

Thanks 👍!

@GunnersRange 2 года назад

I love the way you explained everything. You did this better than most other sites on RU-vid. THANK YOU!

@BigDog50001 2 года назад

I appreciate the comment, thanks!

@jimmypage4162 3 года назад

Couldn’t have done it better myself excellent video sir! Every possible easy way to check the booster/vacuum/master cylinder system. Thank you

@grand73am 3 года назад

Excellent advice. Helped me diagnose my booster. Thanks!!

@225dog3 4 года назад

I know this is an old video but I just want to say dude you just help me out a lot this video will help people for years to come

@BigDog50001 4 года назад

Glad it helped, thanks for the comment!

@glasscitysocialclub 3 года назад

It just helped me. Been driving myself crazy trying to figure out why my van only runs right when the booster vacuum hose is disconnected.

@1LeMec 3 года назад

Just helped me diagnose a the problem. Saved me from buying parts I didn’t need and some frustration. Many thanks!

@BigDog50001 3 года назад

Glad it helped, thanks for the comment!

@isjesse1 4 года назад

Thank you so much for being so clear

@4bangerftw 4 года назад

I have to pass a knowledge exam soon to change class as a mechanic and your video are very helpful, you are a great teacher.

@BigDog50001 4 года назад

I appreciate the comment, thanks!

@madinanababi8094 2 года назад

@HomeMadeBoards 3 года назад

10/10 mate. Straight to the point, great, simple, yet vital information other channels aren't addressing.

@BigDog50001 3 года назад

I appreciate the comment, thank you!

@lendanhoke9066 4 года назад

Very well explained. Appreciate the accurate information! I Wish school teachers knew/explained their curriculum this well.

@BigDog50001 4 года назад

Thank you, I appreciate the comment!

@capitanvonchickenpants8492 3 года назад

They do! That's why our kids are becoming commies

@darkskinwhite 2 года назад

@@capitanvonchickenpants8492 I see what ya did there lol. agree. also doesnt help they encourage little boys to think they're girls.

@TheKonakairay 2 года назад

@@darkskinwhite look up yuri Bezmenov

@robertt3551 3 года назад

This helped me out and saved me from a $300 repair job. Thank you!

@BigDog50001 3 года назад

Glad it helped, thanks for the comment!

@BigDog50001 4 года назад

This video shows how a bad brake booster can cause a check engine light ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SugtR4KMIDU.html

@-g.k.4389 4 года назад

Everytime I hope my brake booster hose to the plenum it stalls out but when I understand hook it it starts up

@najeeaugustine1610 2 года назад

I've changed the whole driver side for my brakes on my Honda pilot it's the only side not releasing why is dat

@guybolton6903 Год назад

@@-g.k.4389 +qq+

@ronniephillips4598 2 года назад

Wow, to the point and very professional, I was able to check some things while actually watching this video…great content I will be following you from now on!!!

@BigDog50001 2 года назад

Thanks and welcome!

@sergedenovo2389 Год назад

BY FAR, the best video on the subject that I have found. Sincere thanks! Serge in Chicago. Imma go see!

@brianpeacock9444 3 года назад

I am an A.S.E. tech and this is an excellent video for b-booster fault trouble shooting.

@BigDog50001 3 года назад

I appreciate the comment, thanks!

@mckoylach1622 4 года назад

Great demonstrations of the diagnostic procedures,thanks for the video....

@BigDog50001 4 года назад

Thanks for the comment!

@John-wx3zn Год назад

I am impressed by your football acheivements. Congratulations. You were a part of an amazing team and you are an amazing man to help people with your education. Thank you for this awesomely articulated video. Your shared education on this matter is a big help to me. I hope more people that make videos share their sports acheivements at the beginning like you did. Go Laney!

@feliperigau7353 Год назад

Very informative! My fluid level was down below minimum but after topping it off the light remained on. The dealership recommended tapping the reservoir to free the measuring arm in the reservoir. IT WORKED!! LIGHT OFF!!

@BigDog50001 Год назад

👍

@DanOnFire 3 месяца назад

I think everybody else has already said it: you do a fantastic job explaining the how and why of each simple test. Thank you!

@BigDog50001 3 месяца назад

Thanks 👍!

@deepramgariadhiman9875 4 года назад

Good job Sir it's a perfect example to Check Boosters .I do it as you do

@BigDog50001 4 года назад

👍

@markboymer9988 Год назад

Great video on simple brake booster vs master cylinder testing for brake issues

@robadventure8007 2 года назад

Very well explained, very helpful. Thats exactly the problem of my break!👍👍

@BigDog50001 2 года назад

👍

@iRepairElectronics Год назад

Great set of tests. My old truck must have a bad booster, when i press hard enough i hear it hissing and the engine RPM’s drops down. Lol 😂

@dr.drewskii8823 3 года назад

This video was very helpful!! Thanks big dog!!

@eddieesquivel1685 2 года назад

I had recently replaced a fitting that fixed a vacuum issue (fitting on manifold) that had turned on check engine light. Parts store clerk said it was for brakes and whether I was having issues. We weren't, but the check engine light was on for vacuum issue. Light went away when fitting was replaced, but came back on several days later (I did not reset light, it just turned off when fitting replaced). Diagnostic showed no errors, but history showed brake issue. It's clear now. Video helped explain how vacuum loss could cause the "brake" check engine light issue. Thanks.

@BigDog50001 2 года назад

👍

@BlackDomeJerome 4 года назад

Very informative and easy to understand. Thank you

@BigDog50001 4 года назад

I appreciate the comment, thanks!

@gunsofsteele Год назад

Thanks for the video! Releasing the clips meant my wife had to assist to pull the switch out while I pushed the keeper clips in. Nothing like fumblefarting my way through it. 😂 2009 Chevy Avalanche. Key positions; all the way counterclockwise = Lock, 1st = Acc, 2nd = Run, 3rd (spring loaded) = Start. This truck does not turn counterclockwise for Accessory. Thanks again!

@JuanDiaz-pq4wb 3 года назад

Thanks to your great video I was able to realize that the defect of my toyota tacoma is that the vacuum brake booster does not work well and I replaced it and fixed it. Thanks you very much for sharing your knowledge and experience. Thanks sss👍👍👍👍👍

@BigDog50001 3 года назад

👍

@nune44 4 года назад

Thanks for the knowledge man.

@BigDog50001 4 года назад

I appreciate the comment, thank you!

@georgemitchell7420 3 года назад

Great help and simple to understand! thank you.

@BigDog50001 3 года назад

Glad it was helpful, thanks for watching!

@marcusdarnell3348 4 года назад

Thanks big dog this helped me out a lot!

@BigDog50001 4 года назад

Glad it helped, thanks for the comment!

@TruckerReviewed 3 года назад

This was very informative

@steveplowman4005 2 года назад

Great info! Off to diagnose my problem. Cheers Steve

@kengardner5097 2 года назад

Excellent vid Big Dog50001 Professionally done.

@BigDog50001 2 года назад

Thanks for the comment 👍!

@MrLESRAJ 3 года назад

Excellent video, on all tests, thank you.

@charliediver1560 2 года назад

Another very helpful video thanks for posting .

@BigDog50001 2 года назад

Thanks 👍!

@lancecluster Год назад

Nice video, Seems to apply to my older volvo xc90, thank you for making this

@Ingyar Год назад

Nice explanation. Thanks! 👍

@dimitrig3739 2 года назад

Good, thorough explanations

@arthurfricchione8119 4 года назад

Dave, excellent video. I noticed that Big Dog 50001 coffee mug in the beginning. If you have any extras I would love to support your channel. Your videos are excellent. Thanks for your time and effort.👍👍👍

@BigDog50001 4 года назад

Thanks Arthur, I appreciate the support! I will let you know if I get extras.

@TheDisgruntledMechanic 4 года назад

You do love your coffee mugs Arthur! haha!

@arthurfricchione8119 4 года назад

Mike what ever gets us thru our day. You know what I mean. Take care bud 👍

@TheDisgruntledMechanic 4 года назад

@@arthurfricchione8119 yes sir! And I appreciate it!

@belowfray5251 Год назад

Thanks so much. Great reminder of how to check valve

@blujan52 3 года назад

Nice video, clear and easy to follow.

@BigDog50001 3 года назад

Thanks 👍!

@angelmoreno8000 10 месяцев назад

Great video sir. Keep up the great work!!!

@dustinwilce1766 Год назад

Great video bro keep it up this helped me diagnose and fix my brakes

@boatkid888 2 года назад

Outstanding information! Thank you!

@BigDog50001 2 года назад

Thank you, I appreciate the comment!

@markstevens7709 9 месяцев назад

This helped me out so much, best video regarding the topic

@BigDog50001 9 месяцев назад

Thank you, I appreciate the comment!

@GMoney-B Год назад

I have bled my brakes 3 times for squishy pedal syndrome. The third time I bled my brakes I used a pressure bleeder and my brakes were great and fine for a couple months until today when the squishy pedal came back. I didn't think it was the master cylinder because it would get better and not come back after bleeding the brakes. Each time it would come back, it would seemingly happen over night. I did the last test that you described to do that tests your master cylinder, with the engine off. I pumped a bunch of times(6 or 7) to get rid of vacuum in the brake booster, then I held the brake for 15 seconds. My brake pedal held firm and didn't sink, it did do a really weird thing though after 15 seconds of having this very very slow pulsing that would push my foot back very very slightly almost not noticeable. It would push back for maybe 5 seconds in a gradient pulse, and then go back that same amount. Again, my engine was off, and the distance it pushed back was so so so small so I would think it wouldn't be an issue, but I also never expected it to have a gradually sweeping pulse pushing my foot back when the engine was off. I would think it is air in my system, or a leak? What do you think? If anyone else has any ideas or experience with this, I would really appreciate any expertise! Really wanting my brake gremlins to be stomped out after maybe 4-5 months of this now.

@jeffbeguinmusic7157 3 года назад

Fantastic video - thank you!

@BigDog50001 3 года назад

Thanks!

@charlesdryg8452 Год назад

Excellent diagnostic demo.

@BigDog50001 Год назад

Thanks 👍!

@charlesdryg8452 Год назад

I attacked the problem as demonstrate and I won big-time. The first thing was to test the one-way valve. Bingo. On my valve there is a side tap to allow for an easy system vacuum check. It has a rubber slide on cap to seal it when not in use. On mine, the rubber cap had totally rotted to failure. Easy $4 fix. Thanks a bunch.

@kabunyankim7751 2 года назад

Thank you very much! Very informative video that answered my questions . God bless!

@andyclemente4205 3 года назад

Thanks for the video. Very informative

@BigDog50001 3 года назад

I appreciate the comment, thank you!

@EllisIsaacks 10 месяцев назад

GREAT video I never knew how to check.

@denk25143 2 года назад

yes this help it was master cylinder and now i learned how to appreciate a power booster

@haxificality 2 года назад

very informative. thanks for sharing!

@BigDog50001 2 года назад

Thank you for the comment!

@richramos2689 4 года назад

Good information. Thank You.

@BigDog50001 4 года назад

I appreciate the comment, thanks!

@richardprice7107 6 месяцев назад

Thank you! Not sure what I liked more...the tutorial or the detailed explanation! I'm on my way to properly diagnosed my brake booster!

@BigDog50001 6 месяцев назад

👍

@matthewhomer9369 4 месяца назад

Great guy very good teacher helped a lot Thank-you.

@paulc2548 Год назад

Thanks for sharing the video! I have a 2008 Highlander and has spongy brake and the brake pedal sank almost to the floor. I will do some tests :).

@BPerez-ou6ux 3 года назад

very very helpful. Thanks!

@BigDog50001 3 года назад

Glad it helped, thanks for the comment!

@krisztianadrian8528 Год назад

Thanks a lot ... Very good explanation..👍 I will do some checking

@capncharlie7894 Год назад

great video thanks for sharing your expertise

@shanemike3070 Год назад

That was very helpful, thanks

@cedarbreezewoodwork Год назад

very nicely done! thank you

@Zib187 4 года назад

Excellent info!

@BigDog50001 4 года назад

Thanks!

@tammyshea8882 4 года назад

Great info, wish you had more on Chey's

@BigDog50001 4 года назад

Thanks for the comment!

@ronjohnstonaustralia2417 2 года назад

All the same buddy.

@mrkttrdr2919 Год назад

thanx, nice thurough explanation for all tests

@jossefjossikajit4169 8 месяцев назад

FANTASTIC TEACHING ❤

@rjmlondon 8 месяцев назад

Excellent and informative

@dapoutdoors 2 года назад

🤜🤛 great teaching bro

@donchan1622 2 года назад

Awesome video great details and straight to the point…..! Love it man thank your…!

@BigDog50001 2 года назад

Thank you, I appreciate the comment!

@marcior.2153 Год назад

Thanks Big Dog50001. ;)

@victorgarrett8795 10 месяцев назад

Right on man thank you so much!

@surgeneral108 4 года назад

Excellent video, perfectly explained

@BigDog50001 4 года назад

I appreciate the comment, thank you!

@cksanford9897 4 месяца назад

GREAT video sir and thank you.

@BigDog50001 4 месяца назад

Thank you for the comment!

@allahonfingerprint3800 11 месяцев назад

Thank you Very informative

@nonnoziccardy4353 Год назад

Great explanation and video!

@BigDog50001 Год назад

Thanks for the comment 👍!

@bobbylong2202 2 года назад

Thanks this gives me somewhere to look

@dagorilla5177 2 года назад

Great job 👏🏾

@BigDog50001 2 года назад

Thanks for the comment!

@stephenwalford774 3 месяца назад

Great info..thanks

@DaMacy1989 2 года назад

vacuum hose sensor was broken at the stem! Thank you!

@_suprasteve_2186 2 года назад

Good stuff man!

@BigDog50001 2 года назад

Thanks 👍!

@elcoyotecojodeldesierto2300 3 года назад

Very helpful video.

@BigDog50001 3 года назад

Thanks!

@danreynolds8028 3 года назад

Fraekin' Great job, Man. Now I know how these puppies work. Liked and subscribed!

@BigDog50001 3 года назад

I appreciate the comment, thank you!

@danreynolds8028 3 года назад

@@BigDog50001 I meant "Freakin".... When your spelling starts to go bad, you know you're getting old... Keep up the great work!

@ashfaqattar8801 2 года назад

Very well explained... nice information.... thank you...

@BigDog50001 2 года назад

You bet , thanks for watching 👍!

@michalo2able 3 года назад

Great video, thanks

@BigDog50001 3 года назад

👍

@Nyck461 2 года назад

Great video. A lot of details.

@BigDog50001 2 года назад

Thanks 👍!

@charlesmicallef4673 11 месяцев назад

Really good video!!!

@Nookends 5 месяцев назад

Awesome video thank you!!!

@BigDog50001 5 месяцев назад

👍

@AreaCode862 11 месяцев назад

Well done 🤝💪

@MixinGasGarage 2 года назад

Thanks for the help

@screwsnutsandbolts 4 года назад

Excellent videos 👍

@BigDog50001 4 года назад

Thanks 👍

@screwsnutsandbolts 4 года назад

@@BigDog50001 You're welcome !

@mikedavis1069 10 месяцев назад

To "THE" point... Great vid thank you Sir...

@adamcramer1699 4 года назад

Very informative

@BigDog50001 4 года назад

I appreciate the comment, thanks!

@samuelhelderman 2 года назад

Thanks so much. I liked it so much I subscribed!

@BigDog50001 2 года назад

Thanks and welcome!

@natanaelcalderon3937 Месяц назад

Thank you, following your instructions I determined the issue was the master cylinder. Replaced the master cylinder on my 2010 acura rdx and it no longer sinks.