Silverado Brakes Wont Bleed

which is not always the same in every vehicle. And yes the Mighty Vac allows you to pull fluid from the master cylinder reservoir to the brake caliper and bleed the air in that fashion. I was finishing the job by bleeding the brakes at all four wheels. Bleeding the brakes will flush that air out. So, my husband changes the oil filter like he always does only the truck is parked on an incline to drain completely. And then check brake material. Improper operation, noisy system. not sure how to bleed the brakes. Yes i'm a women but need to know how. Once it's reset the fluid should return to the rear wheels. When a braking pad sticks, it causes the brake fluid to boil. After changing them and pressing on the pedal the rear calipers wont release and "drag" while driving down the road. If your not sure your doing it correctly, go to a reputable brake shop to do it. We've tried to bleed them by just pumping the pedal and we've also used a vacuum pump system and still not a drop of fluid has come through the brake line. Next, bleed the old fluid out by attaching a bleeder hose to the bleeder nut located on the back of the brake assembly. If I pump the brake fast I can get 4 inches of firm brake pedal height. To install it in your '18 Silverado you would also need the Curt Custom Wiring Adapter. Hydro-Boost Tips & Hints All power steering pump operated power brake boosters. Is there anything special about bleeding the brakes on 1999 silverado 1500 after replacing the right front brake line. Also, make sure you pull the brake pedal all the way up when bleeding the brakes to make sure you get the master cylinder to move it's complete stroke. However, you have to be extra cautious not to let the How Do You Set Wheel Alignment On 98 Chevy Silverado? Cars. Before bench bleeding the master, completely install all of your replacement or upgraded brake components, including the master cylinder and brake lines; this is so you can hook up the master. Common brake problems, such as a soft brake pedal, pulling to one side while braking, or vibration while braking can have serious implications for your car's health (and your health, in turn!). Why wont your brakes work after bleeding? Asked in Auto Parts and Repairs, Headlights Tail and Brake Lights, Chevy Silverado when you are bleeding brakes you always start from the farthest. I had the truck towed to the nearest Chevy dealership and they replaced the brake lines. My 1987 740 has a sticking front, passenger side caliper. Work yourself closer to the master cyl. It may take a few minutes ot get all the air out. Wait 15 secs before repeating. To see how frequently Chevrolet Silverado 1500 problems occur, check out our car reliability stats. Watch the master and add fluid as needed and wait for all 4 bleeders to be leaking fluid. When bleeding your brakes, you normally need an assistant. Find 2000 Chevrolet Silverado 1500 recalls information, reported by the NHTSA, and we will help you find a nearby service center where you can get your car fixed. Took it for a test drive, the "brake" light went out, and the brakes feel good. This truck has fought me on everything I've done. The good news is that on some GM vehicles, a scan tool isn't needed to bleed ABS brakes. The 2004 Chevrolet Silverado has 122 NHTSA complaints for the service brakes at 104,263 miles average. 1 ©2003-2006 InteractivePHP, Inc. If not, there is an equalizer valve that splits the fluid/ pressure that may be preventing fluid from flowing. So, my husband changes the oil filter like he always does only the truck is parked on an incline to drain completely. cylinder in it. How to Bleed Brake Lines. I watched him do this and wondered if air would be introduced into the system. There was no problem in the front, but when I tried bleeding the rears no fluid would come out of the bleeders on the new wheel cylinders. There's not any way to check for this, but bleeding your brakes will remove the bad stuff and replace it with new fluid. My rear brake line rusted but I drove the truck around the yard just using the front brakes which forced the spool in the valve all the way over and got stuck so no brake fluid got to the rear. The 007 Flaring Tool is the easiest and most reliable flaring tool you'll ever use. trying to bleed front abs brakes on 2008 silverado just keep getting more air can not get pedal just keeps going - Chevrolet 2008 Silverado 1500 question. Bleeding the brake fluid will ensure that your Chevy Silverado is safe to drive. Decided to purchase new calipers for the rear (both sides). •Bleed Brake System See Troubleshooting Bleeding Difficulties and Bleeding Guide •Use Speed Bleeders to facilitate bleeding. And, it seems to break apart a lot. ABS systems are VERY sensitive to air bubbles. •Aerated brake fluid •Completely flush and replace brake fluid •Check for overheating conditions See Overheating or Dragging Brakes •Parking brake out of adjustment •See Rear Disc Brake and Parking Brake. Dragging Brakes, MASTER CYLINDER FAULT #1 - BT-101A There has been a recent run of a particular fault in a new replacement part master cylinder. Recently I had to replace a brake line that had a hole worn in it. Labor costs are estimated between $94 and $119 while parts are priced at $17. (Page 1 of 7) CarComplaints. Check fluid level and add fluid if needed. Hydro-Boost Tips & Hints All power steering pump operated power brake boosters. I replaced the master cylinder vacuum bled all my brake lines as per the recommended bleed procedure and the brake petal bottoms out. Follow the vehicle's manufacturer-specified bleeding procedure. This video is about Cannot Bleed Brakes Here's Why. Bleeding method - 2 person, pumping/bleeding screws, and yes, we bled the MC first, didn't take it out at all so we didn't bench bleed it- but it was pumping brake fluid out. Also please check out the statistics and reliability analysis of Chevrolet Silverado 1500 based on all problems reported for the Silverado 15. then you need to do an "old school" bleed out where someone pumps the pedal and you release the air from the system. Anyway, we have been trying to bleed the back brakes and the won't bleed. But the front wheels can't. 2000 Chevy Silverado brake issues. The tech who did the brake job believes in the theory of opening the bleeder screw while retracting the pistons. Vaccum pressure is okay it is at 22 psi,brake vaccum assist its okay also. make sure to keep the master topped off and always start at the furthest wheel from the master. My dad and I replaced the brake lines on my 1999 Chevy Silverado. The flex hoses are good. This means that the ability to write new posts and access various member features will go away. This truck has fought me on everything I've done. Here's what you need to know about Bleeding ABS brakes. Glad to hear of the success you've had bleeding the brakes after a caliper change. Can anyone tell me the specific caliper bleed sequence that's printed in the FSM? I have a Motive pressure bleeder that I will be using. It would be best to bleed the brake lines at this time in order to flush out the old fluid and replace it with fresh DOT3 brake fluid. I have always gravity bleed my brakes b/c I do not have anybody else to help. Why Your Old Chevy's Brakes Won't Bleed. Removed them and reinstalled the old pads and rotors and everything is working ok. Seven problems related to brake light on have been reported for the 2003 Chevrolet Silverado 2500. Took it for a test drive, the "brake" light went out, and the brakes feel good. The 2006 Chevrolet Silverado has 83 NHTSA complaints for the service brakes at 68,160 miles average. This could be a sign that air has crept into the brake lines. Why go to a shop when YourMechanic offers over 500 services at the convenience of your home or office? We offer il changes, brakes, filters, belts, sensors, scheduled maintenance, warning light diagnostics, pre-purchase used car inspections, and much more. Also, I like to form a hanger. He or she won't get dirty hands so you don't need to pull one of your pals away from the ballgame. Front brakes won't bleed Brakes. I replaced the master cylinder, front brake lines, calipers, pads and rotors. If this is not done, you won’t be able to bleed the rear brake lines. The caliper was new, so it should be fine. cylinder in it. My brake aint working like they suppose to when i slam on my brakes truck wont stop and pedal gets hard and stays like that. Advance Auto Parts has 29 different Brake Hose for your vehicle, ready for shipping or in-store pick up. Best way is to leave the cap off of the master cylinder, and leave the bleeder screw open on the caliper. you first have to bleed the block. Close the screw, then bleed both front brakes starting with the right one first. Brakes lock up after 10-15 minutes of driving maintenance & nonperformance. always start with the longest line in the truck and work your way to the shortest. I recently had to replace all the brake lines in my 2001 Chevrolet Silverado 2500HD as well as all new calipers, rotors and pads. Anyway, we have been trying to bleed the back brakes and the won't bleed. I have a 1996 chevy Silverado. "unbalanced" condition means pressure is built up in one system and not the other, causing. •Aerated brake fluid •Completely flush and replace brake fluid •Check for overheating conditions See Overheating or Dragging Brakes •Parking brake out of adjustment •See Rear Disc Brake and Parking Brake. Brake and Front End Magazine wrote: SELLING SERVICES-----Bleeding ABS Brakes After Component Replacement By Larry Carley Bleeding the brakes after brake components have been replaced is a step you don’t want to skip if you want a firm brake pedal. Most Chevy Tahoe's & Silverado's from 2000 up have a one piece design park brake shoe. The Kelsey-Hayes 4-Wheel Anti-Lock (4WAL) brake system is used to prevent wheel lock-up during heavy braking. Why Your Old Chevy's Brakes Won't Bleed. so when you bleed the brakes you will get fluid to the front disc. the contact had to place excessive pressure on the brake pedal just to get the vehicle to slow down. The pump and hold method is likely the most popular since it is both effective and doesn't require a lot of special equipment, though it is best. Consumer had vehicle repaired once, cost was about $600. silverado won't start hear two clicks now get nothing 2 Answers. $280 cheaper in the end and I`m pretty sure I can handle it. Brakes seem to work, but like I said the pedal sinks when holding it. Despite brake failures, reader still loves his 2004 Silverado So bleed all four calipers, if you really know what you’re doing. I disconnected the brake line behind the wheel and not much fluid came out. He lost 2 brake lines yesterday, luckily he was just leaving work and not approaching a red light. A lot of Chevrolet Silverado pickup owners have become very cautious drivers. 2009 Chevrolet Silverado Battery Technical Service Bulletins (TSBs). Browse your favorite brands affordable prices free shipping on many items. The normal way if you pump the brakes is to have a helper slowly pump the pedel and hold it down and then you open the bleeder screw let it bleed and close the screw and tell them to pump slowly again. I just got done bleeding it the "ol fashioned way". Hydro-Boost Tips & Hints All power steering pump operated power brake boosters. What I do when I replace brake pads is force the piston back in with the bleeder screw loosened by pushing the caliper up against the rotor. now it is time to bleed the brakes. How to Bleed Brakes Going seems like the most important part of a vehicle, until you are going and you want to stop. Slowly depress and release the brake pedal. Most of the online auto parts stores sell the Motive Products Power Bleeder. That said since the other 3 would bleed out the problem could be in the proportioning or ABS valve is so equipped. How are you bleeding the brakes? As in step by step method. which is not always the same in every vehicle. I believe the original brake lines on the 2004 Chevrolet Silverado 1500 have inherent design/material flaws and are unsafe to the driving and pedestrian public. The vehicle was taken to an independent mechanic, who diagnosed that the rear drivers side drum deteriorated and the brake spring was fractured. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. Bleeding the ABS brake system only on 1995 C/K trucks only, Help!!!!! 16 Answers. Also, make sure you pull the brake pedal all the way up when bleeding the brakes to make sure you get the master cylinder to move it's complete stroke. best bet is to note VIN and call dealer. OK---braking was very weak---when I pulled the back drivers wheel --I saw brake fluid coming out of the wheel. The bleeder screw broke and the pedal are soft, I changed the brake line but cant bleed the brakes,the bleeder screw seems to be stuck My car has 15434 miles. Not sure what happened it was working fine until I went to drive it one day and the peddle will go to the floor without much effort whatsoever. Alright, next we are going to bleed the brake system, now that we have the pads and rudders and calipers installed back on the vehicle. •Bleed Brake System See Troubleshooting Bleeding Difficulties and Bleeding Guide •Use Speed Bleeders to facilitate bleeding. BLEEDING THE HYDRO-BOOST Use only DOT-3 or better Brake Fluid in the brake master cylinder reservoir. If I open up the bleed valve and push the brake pedal to the floor I only get a light trickle of fluid every time. I used slotted rotors & posi-quite pads. Disable ignition system to keep the engine from starting and then crank the engine for several seconds. always start with the longest line in the truck and work your way to the shortest. what you're resetting is the plunger that should be "balanced" between front and rear brake systems. so we move to the front passenger side to bleed the brakes and when i loosen the bleed valve nothing at all comes. Thanks for sharing your experience. I did the same service work on my 2005 (new calipers, pads and flex hoses). Bleeding the ABS brake system only on 1995 C/K trucks only, Help!!!!! 16 Answers. The brake pipes also pass through a. the old system had a rock hard brake pedal feel. Fill the master then open all your bleed valves. Do not clean brake parts with compressed air or by dry brushing. Can anyone tell me the specific caliper bleed sequence that's printed in the FSM? I have a Motive pressure bleeder that I will be using. If you're trying to get out of a sticky situation, you can gravity bleed the brakes. bleeding abs is different no non abs. Just open the bleeder and let gravity do the work. How to Bleed Your Clutch Hydraulics Without a Helper. If you jack up the front of your truck and remove the tires you won't have to pause for as long between bleeding your front brakes. If after bleeding and there is no air at wheels, you will need to do an electronic bleed with a scanner such as Tech2, re-bleed with pressure bleeder and do another electronic bleed. Shop for discount priced 2010 Chevrolet Silverado 3500 HD Brake Master Cylinder. We're here to help you find that perfect Brake Adjuster for your Chevy Silverado 2500 HD. Have a look at www. Wiki User 01/07/2009. Taking this into consideration, there seems to be a dichotomy with your description. So all my gauges are wacked out on my truck, they work intermittently and then the needles will just drop. Help with 1996 Silverado brakes. Press the brake pedal firmly and run the Scan Tool Automated Bleed Procedure. While driving at various speeds and applying the brakes, the contact noticed that the brake pedal would fall to the floor when it was depressed. I removed the old pads and wanted to push the caliper pistons back in as the caliper won't fit over the new pads because these are, of course, much thicker than the old ones. Consumer had vehicle repaired once, cost was about $600. Bleeding the brake system after changing the brakes can be hard on some anti-lock braking systems. 2000 Tahoe Brake Bleeding question Today I changed the rotors, pads and calipers on the front of my Tahoe and then bled all 4 brakes till there was no air present in the bleeder line but I dont have a pedal when the truck is running. Yes i'm a women but need to know how. Truck used - 2004 GMC 2500 HD I did this video when replacing my rear brake caliper. The Curt Spectrum Trailer Brake Controller # C51170 is a great choice for a brake controller in your 2018 Chevy Silverado 1500 because it is easy to use with the control knob you referenced and is a proportional controller so you will get smooth braking. Not quite sure what you mean. I disconnected the brake line behind the wheel and not much fluid came out. My dad and I replaced the brake lines on my 1999 Chevy Silverado. This morning I popped a brake line. This allows driver to maintain steering control while stopping vehicle in shortest distance possible. When your brake light comes on, your brake responsiveness fades or your brake pedal begins to sink toward the floor, you may have a brake fluid leak. Estimate does not include taxes and fees. Both lines broke so I replaced them and when I bled the brakes the first one bled through about a cup of fluid and then neither would bleed any further. Is there anything special about bleeding the brakes on 1999 silverado 1500 after replacing the right front brake line. The most recently reported issues are listed below. Did you try using the line locks to try and isolate the front and rear brake systems as suggested by the articles?. so me moved on to the drivers rear side. jan 07, 2016 - saginaw, mi - service brakes tl* the contact owns a 2014 chevrolet silverado. They don't let up on the pedel untill you tell them to. Dealer ship put on brake booster,master cylinder,new abs pump,new brakes,rotors,calipers and deperusreizer valve. We also just had the brake line replaced on the driver side. Now, hand bleed the brakes using the master cylinder. Bleed the air out of the regular brake line again in -Step4: Increase- on the hand-held tester display. Labor costs are estimated between $94 and $119 while parts are priced at $17. It's called "bench bleeding" for a reason. It was covered under the GM protection plan "Major Guard". Howard your not happy with the hydroboost as is? The main reason I swapped besides the vacuum booster started leaking is I hated the pedal travel feel and on that note those guys in that link on FSC are idiots every single 95-98 chev with vacuum brakes Iv ever drove feel the same way all the brake work in the world wont make them feel any better. I have a 1996 chevy Silverado. ***** ***** how to bleed brakes, including ABS on 2004 Silverado. Jack up the car on tire at a time. Hi all, I need to get the brakes operational ASAP. Chevrolet Silverado 1500 Classic Brake System Flush costs between $91 and $101 on average. Asked in Chevy Silverado are that oil will not go throw the brake lines to bleed them and the pedal some of the symptoms are hard pedal you wont be able to bleed your back brakes no oil no. Well after poking around on the web I read that without the scan tool you have to remove the two sm. SOURCE: how to bleed brakes on 1500 1999 silverado In order to do this. (Page 1 of 7) CarComplaints. I was trying to do it by myself with a one man brake bleeder but never could get the pedal right. i have a 1998 chevy blazer 2wd i replaced the drv. The ABS system, when it's idle, does not affect the brake system. The most recently reported issues are listed below. Chevy Silverado and GMC Sierra Brake Problems when I go to brake I push on the pedal and it won't go- anywhere- or starts to go down then it's like I hit a wall. now it is time to bleed the brakes. Awesome trouble shooting procedure, I have had the exact same problem (though not as Sevier as Jay's) for four years on my 2006 KIA Sorento. We know car parts and we know auto parts. e-brake was backed off all the way so as to eliminate any confusion about brake adjustment. However, you have to be extra cautious not to let the How Do You Set Wheel Alignment On 98 Chevy Silverado? Cars. Why wont my brakes bleed? i have pumped them up and held the pedal down and then let my dad turn the wrench, and i cant get pressure. the old system had a rock hard brake pedal feel. The 2006 Chevrolet Silverado has 4 problems reported for brake lines rusted from front to rear. so changed front rotors and pads. only older model with carburators you bleed the brakes. that is done the same way as the calipers, basically pressing the pedal with the bleed nipple open, closing the nipple and then releasing the pedal, so as on the pedal return it sucks in fresh brake fluid rather than air. I had 2 separate instances of catastrophic loss of all braking effort on the same truck within one year of each other. If they're past the wear mark, they need to go too. Follow the vehicle's manufacturer-specified bleeding procedure. The front ones have no fluid coming out of them when I try to bleed them. Leaking brakes will also cause the brake warning light to come on, says Hovig Manouchekian, operations manager with Funk Brothers Automotive in Hollywood, California. Brakes might not bleed for several reasons, commonly the brake bleeder screws can be rusted stuck, then you have to apply heat, very carefully, or an impact wrench, or drill them out, or just buy a new caliper. When vehicle is coming to a stop the abs will cause the brake to pulsate. Removed them and reinstalled the old pads and rotors and everything is working ok. yeah, brake fluid is getting there, sorta slimy. Maybe you try it again. The parts and labor required for this service are. Please read part one before continuing with this article. This means that the ability to write new posts and access various member features will go away. I just wasn't so lucky. i have tried both sides about 25 to 30 times each?. While replacing those, I noticed the brake lines were badly rotted too. you need to replace the broken parts and make sure all four corners are able to be bled out. 2 person system. well the same thing happened there. you should get bubbles out of the small holes in the m. Consumer had vehicle repaired once, cost was about $600. The controller will automatically reset the system by commanding the rear motor to run to the home position. Tried the pressure bleed with the brake pedal pushed down and held in place about 3 inches down in travel as well. Brakes might not bleed for several reasons, commonly the brake bleeder screws can be rusted stuck, then you have to apply heat, very carefully, or an impact wrench, or drill them out, or just buy a new caliper. The only difference you are likely to experience is the different types of tools that you are supposed to use. Bench Bleeding. 04 Chevy silverado 1500 rear brakes won't engage. Evaluate the feel of the brake pedal before attempting to drive the vehicle. I used slotted rotors & posi-quite pads. Bleeding brakes on a 98 3500 C/K Car Forums. Front brakes wont bleed Brakes. When you apply the the brake or clutch with the bleed nipple open make sure sure you close the nipple at the end of the stroke, then release the brake or clutch and then open the nipple apply the pressure close off the nipple at the end of the stroke continue this process until you have released all the air. The 2003 Chevrolet Silverado has 124 NHTSA complaints for the service brakes at 100,399 miles average. The contact stated that when attempting to stop the vehicle, there was a vibration coming from the brakes. Every time I bleed the brakes on the Cobra it takes way longer than it should. Open the front bleeder screw on the modulator. Lets start when the problem started occuring. 44 problems related to service brakes have been reported for the 2003 Chevrolet Silverado 1500. the front ones have a great stream of fluid coming out. $280 cheaper in the end and I`m pretty sure I can handle it. I got a 93 Chevy Silverado 1500 Awd. If this is not done, you won't be able to bleed the rear brake lines. After examining the vehicle the contact noticed that the rotors were covered with rust and that the brake pads needed to be replaced. Heading back out to reinstall the new seal and take it for a testdrive, hope it works. Hi so Ive tried to bleed the brakes several times now. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. It's time to do a brake fluid flush on my 99 Silverado Z71. Refer to Hydraulic Brake System Bleeding (Manual) Hydraulic Brake System Bleeding (Pressure). 7 vortec/20" wheels. Attaching a clear tube to the bleeder valve and placing the other end in a container of fluid helps. Release the brake pedal between each test. so when you bleed the brakes you will get fluid to the front disc. Four problems related to brake abs warning light have been reported for the 2004 Chevrolet Silverado 1500. Then on here I read about the need to depress the small pin on the pass side of the prop valve while bleeding brakes. Did you bleed it really thoroughly and using correct procedure? If there is still some air in the system, that can cause the issue you're describing start using the brakes, fluid gets hotter from normal driving, and the air in the fluid expands from the heat and the brakes begin to self-apply and drag a bit, that. The 2003 Chevrolet Silverado has 124 NHTSA complaints for the service brakes at 100,399 miles average. Now, hand bleed the brakes using the master cylinder. 2000 Chevy Silverado brake issues. Then check for brake hoses swelling/expanding under pressure. hey guys i replaced rotors, calipers and hoses on my 87 2wd, the front brake reservoir (larger one) drained down to empty during the process of the job, the rear brakes were not touched. This could be a sign that air has crept into the brake lines. - Answered by a verified Chevy Mechanic. I would first get the basic brake system bled first, that helps morale. the contact had to place excessive pressure on the brake pedal just to get the vehicle to slow down. Look underneath the car and you should see a bleeder valve. How to Fix a Brake Fluid Leak. I followed the correct procedure for bleeding, and there certainly was a lot of air in the lines, but I noticed that there wasn't much pressure coming out of the rear after pumping the brakes and opening the bleeder screws. A quick tip on how to quickly and effortlessly bleed an entire brake system in under 5 minutes. We replaced the broken brake line, added new fluid and bled the brakes for about an hour and there still seems to be air in the lines or something else because the brake pedal still goes to the floor. 2000 Chevy Silverado brake issues. Yes i'm a women but need to know how. Bleeding method - 2 person, pumping/bleeding screws, and yes, we bled the MC first, didn't take it out at all so we didn't bench bleed it- but it was pumping brake fluid out. The rear wheel cylinder no longer actuates either. My rear brake line rusted but I drove the truck around the yard just using the front brakes which forced the spool in the valve all the way over and got stuck so no brake fluid got to the rear. Brake Master Cylinder Bleeding Tool One Side Of My Front Brakes Won’t Release. 1) Fluid is getting to the rear cylinders in the bleeding process without raising any flags. Anyway, we have been trying to bleed the back brakes and the won't bleed. Both lines broke so I replaced them and when I bled the brakes the first one bled through about a cup of fluid and then neither would bleed any further. I have already replaced the master cylinder, flushed and bled the brake lines at all four wheels. I just wasn't so lucky. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. But the front wheels can't. Not quite sure what you mean. then let some one press the brake and hold it [do not pump] till you tighten them up. Despite brake failures, reader still loves his 2004 Silverado So bleed all four calipers, if you really know what you’re doing. If you jack up the front of your truck and remove the tires you won't have to pause for as long between bleeding your front brakes. I just got done bleeding it the "ol fashioned way". Average repair cost is $720 at 90,250 miles. well you were right its the booster. 1995 chev silverado,how do you bleed the brakes putting on new calabers and wheel sensor on left front side. Hydro-boost brake systems are self-bleeding if there is no other problem in the system. Shop a NAPA online, home to the best quality guaranteed. SOURCE: Bleeding Brakes on a 2001 Silverado Z71 Tony, When bleeding brakes after the system has been opened for service (you didn't say if you were doing any work on the master cylinder) you should start with the farthest wheel away from the master cylinder, which is the righ rear. if you repleaced a brake caliper on your truck and didnt pinch off the rubber line , then you have a but load of air in the system. bleeding abs is different no non abs. For more on this topic, check out my Brake Line Fluid Bleeding With An Assistant DIY Guide or alternatively the Brake Line Fluid Bleeding With A Power Bleeder Guide. I replaced the master cylinder vacuum bled all my brake lines as per the recommended bleed procedure and the brake petal bottoms out. Anyway, we have been trying to bleed the back brakes and the won't bleed. Can I bleed the brakes other than with the screws?. Then i found out the master cylinder apparently was bad, so i bought a new one and bench bleed it before i put it on the truck in which it didn't solve the problem. Average repair cost is $720 at 90,250 miles. replace all rotors and shoes, still had problem. Front wheels bled no problem. It runs from the left front wheel back to the ABS module. I would suggest that you bleed the front wheels to try to reset the valve to center. I did a complete brake job on a 1984 two wheel drive GMC pick-up including the rear wheel cylinders which were leaking. First, the brakes have never been great but they should be better then what they are now. Pump and push gently while bleeding the rear brakes. you should get bubbles out of the small holes in the m. The master cylinder was for a '75 Silverado with JB1 (manual disc/drum) brakes. Do you have key in On or Off position? Do you press pedal down SLOWLY, then wait a few seconds before depressing it again, or do you pump it constantly until you get pressure?. I've bled the brakes on my truck 4 times and still have a spongey pedal that goes nearly to the floor. Every time I bleed the brakes on the Cobra it takes way longer than it should. Yes these abs brakes need special equipment to bleed correctly although I've been told if you get abs to active by skidding in grass or gravel then bleed brakes again this will help had this work on our company truck 06,also had to replace the power assist on our 07 similar problem my opinion junk!. Chevy Silverado and GMC Sierra Brake Problems when I go to brake I push on the pedal and it won't go- anywhere- or starts to go down then it's like I hit a wall. and does anyone know if a 1995 silverado has had any recalls on them. All you need is brake fluid, some compressed air, and a bit of ingenuity. 04 Chevy silverado 1500 rear brakes won't engage.