brakes wont bleed proportional valve reset this guy's garage 

Saved me about 150 bucks brother valve was stuck and airgun worked perfectly ^.^ thank you!

I found this video a couple days ago. I want to thank you very much for posting it. It helped me a great deal.

I’ve been working on my daughters brakes for days. I was just about to take it to the shop, before I saw this video. You are my new best friend

geesus finely someone who acually understands whats going on . some times if it sits over nite it fixes its self but seldom .you can get some peddle and are able to bleed .thanks guy.

THANK YOU! 1999 Dodge Durango went to five (5) ASE mechanics for horrible brakes, new master cylinder (twice), new rotors, new shoes, babied...bad brakes. Then SUDDENLY, bad went to worse as the front brakes were almost lost the ABS system went nuts. Your "last resort" was done. Fed up with mechanics I researched and came to your sight by accident. It made sense. Opened the front and rear bleeders and brake fluid gushed out the front, hit it with air at the back, bleed the system and viola! For the FIRST TIME in 22 years I have great brakes. THANK YOU. I kid you not, 5 mechanics didn't find that problem. ???? ...and I spent some money over that time.

Awesome, this is the first result I've been. A garage mechanic for a long time and never had this happen

TGG! I've said it before and I'll say it again. I don't always comment, these days, but i LIKE everything you do, man! Cheers and God bless! 😁🍻👍

My buddy bleed system is using one of my 4” decorative yard blocks that you can buy at Lowes. These blocks are heavy enough that once you have pumped your pedal and are in the hold position, you wedge that block against your pedal and it will hold it. Then go crack your bleeder and then close it like normal. Once again go to the drivers seat and move the block. Pump, pump, pump and hold. Wedge your block and make sure it holds. Go crack your bleeder at your wheel and close it back. Follow your manufacture’s pattern of which wheel is bled first. 2nd, 3rd and finally 4th. This method doesn’t require you to depend on whether or not someone can hear you and you know that the person didn’t release the pedal before you close the bleeder at the wheel. It works like a champ.

I really appreciate the tips in this video as I just finished rear brake lines on a 1999 lexus es 300 and the proportioning valve was stuck badky only giving fluid to the fronts. I didnt have a bleeder in my master cylinder and the 2nd tip for unsticking it didnt work so I had to do the hail mary approach and it fixed the issue immediately! No sooner than I shot two puffs of an airgun into the rear bleeder that fluid started rushing out. Bled all 4 using the air compressor tool you refer to and lastly two person bleeding and Im back on the road. Thank you for making these types of videos!

Thank you!! I had a leaky master cyl on my 1980 firebird. After bench bleeding the new one and installing it, couldn't get the rear brakes to bleed. Very little fluid coming out. The brake light was on dash, indicating the prop valve triggered. I tried various brake pedal and cracking tips to recenter. No luck. Then i found your vid. I dont have vac bleeder so i went to the air gun method. That blew the prop valve the other extreme. Light was still on, but i could bleed rears no prob. When i moved to front, they bled no prob and the valve recentered and light went off. All good. Thank you from Hamilton.

You are the man. After looking at dozens of lame video that really had nothing to do with the issue I got on to yours and you succinctly intelligently laid it out exactly how it is and for that I appreciate it great stuff.

Dang this might have helped me out the other day. Had to put a master cylinder in a chevy silverado with abs, and I've never had so much trouble bleeding brakes before. I bled the brakes and the ABS pump about 5 times with my scan tool. I finally broke down and bought about a 300 dollar pressure bleeder, which I must say did get the job done.

Thank you for this Video... After watching this I went straight for the Hell Mary option, and Wahla it worked!!!! I didn't try anything else you demonstrated, im just glad the Hell Mary version worked... I have solid brakes!!!!!

HEY, I have the same bleeder!! You are 100% right about not solely depending on that bleeder, because I don't either! Sometimes its just not as good as the always perfect buddy system. I'm digging the HAIL MARY method, LOL! Great instructions Shaun!

portioning valves are not always plumbed front and rear. Some cars are X pattern rt frt / left rear on one circuit. lt frt / rt rr on the other

wow I never thought about the air method. My 88 Lincoln Town Car has a stuck proportional and I cant find the part anywhere. Im going to try and force some air through. I will let you know. Thanks for the great information.

Excellent information.What i did was the same but i put a container on the rear brake bleed valve and filled it with fluid. When i sucked the fluid out the master cylinder it automatically filled the brake lines with fresh fluid.

Thank you so much. Nice 78 Malibu.

The old mity vac has saved my bacon a number of times! great video.

Thank you for this video my man! I had my bavk against the wall. Bought the wrong Valve and was trying to find a solution. Found this video 🤟🏼 time to see what works

Thank you for your knowledge and sharing.

Yikes I hope I don’t run in to this issue as I swap out all my brakelines, hopefully the prop valve will not move during the process and I will gravity fluid through the system as I change them, gonna do the rear first and then the front. I am grateful to be armed with this insight now so I won’t be shocked if it happens, thanks for posting this

THIS. GUYS. GARAGE. Very WELL. EXPLAIN ED. VIDOO. On. A SUBJECT. I. KNEW. MOTHING. ABOUT. BEFORE. Watching. Your. Video. PS. THE. CHARTS. Y0U. USED. Too. We’re. A. GOOD. HELP.

Awesome video. I'm sure my valve is screwed. I'm definitely buying one of those tools!

Nice video! Wish I could say my new truck was working out. Smh. First back up camera replacement now the dash with 3k on it is warping...Local dealer really not working hard... ugh. Miss my Tundra more and more now. 😞

Great tip thanks I've had this happen a few times over the years if it ever happens again I will definitely try this. And best of luck to everyone that is racing this weekend at Cape Breton hope you all stay safe. There will be no racing here at my home track Greenfield at all this season which really sucks but it is what it is. With only 250 people allowed on the property I'm guessing you won't be there doing any videos

Studying for brakes ASE test and I've never had anything to do with a combination. Your video was very helpful for understanding how it works. Thanks, you just got a like and subscribe from me.

You're doing great work that will help someone out here. Keep it up dude

Thanks buddy. That was very helpful.

Well done. Have you ever tried speed bleeders? First thing I do when bleeding brakes is to add them. Makes it a one man job. No ones ever around when I need to bleed them.

Lmao I google break cables for my ranger and this video ends up in my recommended, at lest the algorithm is helping the little guy for once.

How's she goin'? That's an interesting procedure. I like that you gave a couple of different options to try before you would take the big plunge and change the proportional valve!!! Thanks for sharing and take care!!

Thanks for the video. I'm helping my son on his 1988 Honda Accord and I could not figure it out why I can't bleed the front brakes? I think I know now.

Yo Caper! First to hit the like button!!! Thanks for the automotive tutorial, I've learned something new and I appreciate that. Hope all is well homie!!

Great video , thanks for posting . PS What is that excellent music playing in the background .

"this guy's gradge" thanks man!

Can a bad proportioning valve cause rear brakes to stay seized? I've changed brakes, calipers, flex line, abs modulator, but the brakes keep staying seized. I can push them open with a screw driver. Any help with be appreciated, at wits end 😔

Dang best explanation I've seen anywhere!! Thank you brother! My 97 lt1 has only fronts working and pedal hard as hell. This happened after a rear caliper leak. 2 shops wanted to change the master and booster.

Very helpful information. Thx

Wait...is this the House of Commons channel ?!? lol cars and guitars luv it bro

62K views?!?! This calls for an entire series. Ride the algorithm. -Chuck

thanks used the last draw it works

Really cool info I never knew that. Question for you: if the valve sticks in the first place, doesn't that mean it's likely to do it again and should be replaced anyways? Or can you unstick them and they'll usually be good until the next time you blow a hose?

Thank you.

thanks a lot, worked great for me

This guys garage getting it done more ways then 1!!! 🤜🤛👍🍻🍻🍻

I'm not sure if this is the same issue, but I get fluid to the rear. Caliper pistons are twist in, and as im bleeding them master cylinder drains down (not completely) as usual. As i pump brake pedal it begins to stiffen up but rear pistons never fully compress the pads. If you watch them they move in and out ever so slightly along with the brake pedal.

Could the proportioning valve be partially off? I get the fluid to bleed at the front brakes and rear driver side, but cannot get the rear passenger side to bleed. 2007 Toyota Corolla.

Great video brother keep up the good work caper 👍🇨🇦

Hail Mary option appropriately named.

Everything you explained in the beginning is my exact problem. So I had a break in the system (rear drum brake wheel cylinders were busted) so the front bleed and rear won’t bleed. I have access to the p-valve. So I can suck from the front brake bleeder bolt while I have one rear bleeder open correct? How much fluid or how long do I draw fluid back from the front caliper? Also do I leave the master cylinder cap on or off. After all that do I close the front bleeder and draw from the rear after everything is closed? Thanks man hope I can fix this truck lol

I just did a front disc conversion on a car that had drums on all 4 corners. I had to run new lines for the front. When I went to bleed the system I had a bad leak on one of my new lines. I had a bad flare and had to redo the line. I no longer have a leak, but I'm now having trouble bleeding the front. I'm guessing it's the proportioning valve.

I have a 89 suburban. I recently replace the master cylinder and both front caliperss. I couldnt get fluid to do more then trickle out of the rear. So i ended up replacing the the porplrtioning valve. Still nothing. I can bleed the fronts but nothing in the rear and still no pedal.

Okay u are a great teacher. I wish u do a video of stick calibre. How to remove stick calibre?

I had to replace a rear caliper on a 2004 Escalade with ABS. The two rear wheels are bleeding but I am not getting any fluid from the front wheels. I've collapsed the pistons and also tried a vacuum pump and still nothing comes out the front. I want to try the hail mary. So, do I blast air into the front or real caliper nozzle? Also, do I have to leave the other nozzles open?

Thanks, but the brake bleeder tool didn't work as instructed. The hail mary didn't work either. Can you tell what I should do next? Thanks!!!!!

Hi I have a vacuum bleeder...and I learned the hard way that vacuum bleeding the rear brakes of my 2001 dodge ram cargo van causes the brake switch to go offcenter and the brake switch lite comes on ....is there a way to vacuum bleed the rear brakes without the brake switch lite coming on or do I just avoid vacuum bleeding the rear brakes?

Can you tell me why I have an older brass proportional brake valve with a pin sized hole on the side and I got brake fluid spitting out of that little hole I tried plugging it up and that didn't work with JB weld. I go to order a new one and the newer brass valve doesn't even have a hole on the side. I know it's leaking pass the o-rings and leaking out this little pin sized hole. Do I have just an older brass unit and what was the purpose of this little hole on the side of the unit?

Thanks Sir That was all useful!

So this is the way it’s done if the FRONT brake isn’t getting any fluid ?

You’d make a great shop teacher.

Hi Guy, Can you please tell me what is the rubber capped button on the proportion valve for. Thanks for the video very clear and informative. I have a 71 oldsmobile Toronado FWD.

Nice work!

I can bleed the rear brakes. Can a prop valve keep the brakes from getting ENOUGH pressure for balanced braking, or is it all or none?? Read brakes dont seem to have enough, but some pressure. Thank You

Trying to bleed a 1991 Chevy obs and my front lines there’s no air and didn’t take long to bleed , my rear brakes I’m getting lots of air and been trying to bleed for hours , what could I try next ?

I Have bumped the air twice from the rear and got fluid out left front. But the valve wont stay in the nutral position When I try to bleed the rear brakes it will not bleed ! Any ideas?

Will this method work with a hand pump kit or do I need a air compressed bleeding kit?

Cant get any fluid out of front calipers. Tried blowing into the rears and only got fluid and air moving into the MC. What to do???

My brake fluid only comes out if I start the engine when bleeding the rear brake... I also noticed the same brake is dragging...any suggestions?

What If I’m not losing fluid I have zero brakes first pump always low second pump pedal goes back to normal and light goes off

Hi, I converted my front brakes to disc and installed new front brake lines a rear middle brake line and a new power brake booster and Mc as well as a new combination valve.. I unfortunately didn't block off the pressure differential valve when I bless the brake... So now my brake are still soft after bleeding and the light is on. I took the combination switch offand it looks like the valve got triggered.. One question: How does one re-center the pressure differential valve as it got triggered while bleeding my brakes and I didn't know about the block off plug? 🤔

Why is mine spraying fluid out of the brake light switch sensor part tho💀😭🤞🏼 send help

made it to age 52 without ever having this problem... hope I never do, but now at least I know how to fix it if I do!

ThanX !!!

Good information thanks

Or you can do it the easy way and have someone step on brake pedal while you Crack the line open on combination valve on the side opposite the side that piston is offset to . Will center it immediatly.

Thanks for the info.

What about if the front passenger’s side is the one cannot bleed is this thesame procedure? Or pump the air in the back, by the way what causes of this kind problem?

What if I rebuilt both front calipers and already collapsed the Puck and then reinstalled? How do I go about resetting proportional valve then

Hello, I tried the procedure but from the front bleeder because my master cylinder doesn’t have a bleeder, and unfortunately it didn’t allow brake fluid to go to the rear. It did for a little bit and it wouldn’t do it again. I purchased the valve but was hoping that it would have worked. Parts are hard to get, and it took me a week for my new master cylinder to get to me. Now my front brakes work amazing, but when I went to bleed from the rear no fluid was coming out. I unplugged the line under the wrangler going to the rear brakes, and nothing. So I removed the brake line to the valve and nothing.

I've never heard of this before, but I'm struggling here. no idea if I have a bad master cylinder or a stuck proportional valve. what do I even try next.

Just replaced front hoses on my 97 ram 1500, along with one hardline in the rear. I’m having trouble bleeding them. At his time I’m not getting fluid out of the front calipers, only if I press the brakes the fluid will come out. The rear brakes are bleeding fine. Is this a proportional valve issue ?

I blew my front line so to get a good bleed I should blow air into front bleeder to reset the proportional valve?

Yo Caper, I've been bleeding the brakes on my vehicles for quite some time now. I've never encountered this problem yet. I guess I'm lucky? -Chuck

This weekend I replaced rear brakes/rotors on an 02 Lincoln Town Car. Then I wanted to bleed the brakes with my MityVac vacuum bleeder. I bled the rear passenger without any issue. Moved on to the rear left and zero fluid came out no matter how much I waited/vacuumed/primed up near 20psi before cracking, etc. Took bleeder off, still no fluid. Upset and whatnot for awhile, I didn't try bleeding any of the other corners. I reassembled things and drove around (and delivered car back to her), no braking issues at all. The old pads on both rears looked the same wear when I removed them. No idea what the problem with bleeding! :( I only watched your video yesterday, and can't try to see if this proportioning valve strategy would work. Heck, I don't even know if this vehicle has this style exactly. I think it has a ride height based pressure control thing too. Not sure how that could cause a bleeding issue. Still need more deep intimate knowledge of brake valving etc. Just leaving this here as a note of my experience this weekend. Any comments, questions or helpful tips from anyone is welcome!

I'm just going to bleed the brakes again. I'm sure that my daughter & her husband probably took turns pressing on the brake pedal after she said the brakes weren't working. We already replaced the bad lines going to the rear of the car, now it's just bleeding the system correctly. Plus the front calipers were replaced as well sooooo it's gonna require that much more bleeding anyways.....

Nice info thanks

Im going to try this tomorrow! Can hardly get any fluid out of my rear calipers on my 04 Mach 1. Peddle seems shitty and the rears won’t compress the pad against the rotor.

Great video, thanks My question is when flushing the brake fluid from my friends car I cannot get fluid to come out of any of the 4 wheels, if it was only one wheel that wasn’t bleeding I know that it would be likely a bad caliper but on all four wheels, could it be the abs unit that giving problems or master brake cyclinder. Thanks

77 dollars on Amazon great video thanks

Im here with this issue. I put a new caliper on it. And what you know. The caliper wouldn't work. It got hot as hells. And I had to get another one. And I am still having issues of getting brake fluid to come out of the bleeder valve. But, when I start it. I can get it to bleed out. I usug%ally bleed my brakes with it off. Any suggestions. Im getting fluid to the caliper. Could it be the washer I have on the brake hose bolt on the caliber. Not allowing enough fluid to come through?

Please respond... if I fluid reaching all 4 calipers but pedal goes to floor with almost no braking response can I run a tube from each bleeder screw to the master cylinder reservoir 1 at a time and pump the brake pedal until only fluid is in the tube will that properly bleed the entire brake line system and master cylinder where the brake pedal will be solid and responsive

03 Chevy trailblazer I have no front brakes but have straight fluid coming out of the back calipers 🤔 I believe the proportional valve is stuck to the one side do you know how I can reset it by myself with the cracked tools or suction pump I haven't tried the hail Mary option is that my best option🤷🤔🙄?

Great info thanks .

Hi great video. Just wondering if you're replying to messages. I have a 2001 GT. rear calipers not bleeding I can find the tool you used to get the proportional valve to go into the correct position. Can you provide the name of the tool canister?

8:00 how much PSI did you bump in it for your "Hail Mary" version?

Thank you

I have a 1978 Datsun 280Z. Brake lines were empty for a long time while I restored the vehicle. Filled it with brake fluid and tried to bleed the brakes multiple times but the brakes stay squishy and it acts like the brakes are not bled. Is this the proportional valve causing problems? When I open the bleeder on the front, fluid runs out; if I open the bleeder on the back, fluid barely drips out and this is without pushing the brake pedal. If the pedal is depressed, fluid runs out of both sides. I'm trying to find a new proportioning valve to buy to replace the proportioning valve but having little luck finding the right one! Thanks!

So my master cylinder has bleeder screws, if I’m trying to bleed the rear which screw do I hook to front or rear?

Great information