How To Bleed Air From Abs Module

It is important the system is under pressure before doing this to help force the air out. Cycle the engine. After I was done went to do a bleed and no pressure builds when truck is running, builds pressure with truck off but disappears when started. Hi Everyone- Just did another video on a basic brake bleeding for our Escapes- it piggy backed off of the previous pad/rotor replacement vid and focuses on the general practices of doing just one wheel at a time, having a second person to pump the pedal, and then monitoring the reservoir for adding fluid as needed. Bleed the circuit you replaced the line on from the reservoir to the caliper. The brake fluid resolve is normally. On problematic bleeding I've had luck elevating the end about four feet, waiting about five minutes and then bleeding them out. The bike has 2x independently working brake fluid circuits (front brake and rear brake) and each nipple on the ABS is for bleeding one of those circuits. I've read that one needs to "cycle" the ABS module with a scanning tool in order to push out any air trapped inside of it. Go to Basic settings and select group 2. Starting with the bleeder valve at the back of the car, open it until fluid starts to flow and then open the one in the front as well. The anti-lock brake module is leaking. In other words, you bleed the system as. The ABS (anti-lock braking system) on the Honda Accord demands regular maintenance to ensure consistent performance. We developed these kits after the frustration in trying to remove the ABS on our own cars. When manual trouble code diagnosis indicates no codes stored, removal of jumper tool will set a false code 9. But according to the shop manual, the base system and the ABS are completely separate, so if you lost fluid in the primary system and ingested air into it, the ABS system should still be free of air. Be sure to keep the reservoir topped up during the bleeding process to keep air out of the lines. Others do not and require the use of a scan tool to cycle the ABS solenoids while you bleed the system. HF for front, HR for rear. Yes, this is an expensive fix and would NOT recommend you doing it yourself. Just be careful not to let master run dry or you will have bigger problems with it and ABS module getting air in it. I'm trying to find out how to bleed the system manually without using a scan tool. To bleed the isolation valves in the modulator, there are two bleeder screws. Me and a friend tried to bleed the brakes, we let the reservoir run dry by mistake and air got sucked into the ABS module we believe. Then go to the other caliper and bleed but you probably won't see any air if all went well. I was told the ABS pump must be running to get the air out of the ABS valve body, but there is no bleed port on the valve body itself. AIR BRAKE SYSTEM TROUBLESHOOTING 1. When you need to bleed the ABS system, you need a scanner. Using the hydraulic jack, raise the car to a comfortable level Step #3: Drain the Brake fluid​. Kelsey-Hayes rear wheel antilock (RWAL) systems have been gotten a bum rap in recent years. When you are bleeding the air,, if the ABS module catches a whiff of it , it "may" throw a code and be disabled, and your ABS light will stay on. Make sure you keep the reservoir topped up and don't introduce air into the system. 1997-2006 Expedition & Navigator - ABS brake bleed problem - I just had to replace all my steel brake lines on my 1997 exp. I still have no pedal pressure. Slowly depress the brake pedal. Please narrow the Anti Lock Brake Control Module results by selecting the vehicle. The fluid was all new. After replacing the ABS sensor, it still had the same symptoms. ABS systems are VERY sensitive to air bubbles. (abs pump/value bodies have a pressure sensor built in). And even the ABS system bleed is this: " 4. NOTE, on models fitted with ABS, if air enters the hydraulic unit, the unit must be bled using special ford test equipment. Bleeding a master cylinder can seem like it takes forever. • Scan tool cycles the ABS solenoids for 20 seconds. While bleeding the system I've pumped three quarts through and find no evidence of any air as I bleed the fluid through a clear tube into a clear glass jar. Also, you could actuate the ABS (put 2 tires on a gravel shoulder and hit the brakes hard) to cycle any air out of the system after you've got your brakes working properly. The vehicle is NOT SAFE TO DRIVE with air trapped in the brake system like that. I have had luck bleeding out an ABS unit with a pressure bleeder, have also not been as lucky. • The scan tool energizes and cycle the BPMV solenoids for one minute. thanks, i guess air must have got into the abs controller. Inspect for visual damage and leaks and repair, as needed. repeat this process untill all the air is out. You must have the computer interface to plug into the dash. Several months back, I had major trouble with the dreaded Trifecta lights (ABS, BRAKE, DSC) and nothing I did fixed the problem. I have cleaned out my whole system with alcohol before and compressed air to get it totally clean and there is no secret to the refill. Open the bleed screw 1/2 to one full turn. Under replacement parts, it lists "ABS 5. If bleeding the brake system like this though doesn't fix the problem of mushy brakes though or you know the ABS module has air in it, then you will have to bleed it. searchResultsCount }}. Open bleeder and somewhat quickly re-close bleeder letting some air / fluid escape into the bleeder hose. It's difficult to bleed, and many require the use of a scan tool to. You use the scan tool to tell the ABS to self-bleed, then you bleed the brakes normally. 1997-2006 Expedition & Navigator - ABS brake bleed problem - I just had to replace all my steel brake lines on my 1997 exp. An air bubble is an air bubble. just couldn't bleed the brakes and brakes were non existent. Leave a Reply: Recent Posts. After replacing, I had a hard time getting a nice firm pedal despite bleeding the s*** out of my brakes. anyhow i could have started a new thread but i think this is a good place for the question how to bleed abs module MANUALLY without driving and no pressure bleeder. Every automaker seems to do it their own way. ) failure of the ABS system again. The difficult part is bleeding it, in order for us to bleed all the air out of the system (and there is a ton of it), we have to start at the ABS module before we can go to the rear wheels or otherwise it will be a waste. Clean the master cylinder fluid reservoir cover and surrounding area, then remove the cover. Unless the ABS modulator or master cylinder were replaced you could just bleed air out normally at each caliper using the gravity method. Bleeding the ABS brakes on the 2005 F-150 requires that you use a specific sequence in order to perform it correctly. The dealer needs to hook up the scanner to open/close certain valves of the ABS unit to get all the air out while bleeding. If this is what you want to do, and you don't have either the Ford dealie or the Thexton TEVES ABS box, the gravel road method is your only choice (AFAIK). I assume when you say you're replacing the ABS Control Module that you're replacing the HCU and ABM (HCU is the top part and the ABM is the bottom part of the ABS Control Unit assembly). the 5 pumps is done after the abs module stops its activation, then you close the bleeder. The ABS module, that is the electrical brain that the connector is attached to isn't typically the problem. Note: the K1200, R1200C and R1100S use the same ABS2 units as the 1150GS, but there is no ABS switch to use for the reset procedure. To clear the code the ABS module must be reset. I'm not real sure how firm the brakes were prior to the repair, but there's no way it's good enough the way it is now. Cycle the engine. On the C and H bodies through 95 the ABS pump has its own reservoir, and the master cylinder has a line that goes to the res for the ABS pump, the chances of having any air left in the ABS pump is very slim as the air bubbles in the pump will bleed up into the master cylinder. Inspect for visual damage and leaks and repair, as needed. How to Bleeding the Brake System on Camaro and Firebird - ABS Brakes with WITH Traction Control Posted by Support Staff on 24th Apr 2017 Notice: Use only DOT 3 brake fluid from a clean, sealed container. How to bleed Jaguar XJS teves ABS After rebuilding the front and rear suspension I was in the unenviable position where there was almost no fluid in the ABS. • The pump runs and cycles the valve for one minute. When bleeding the brakes, just pretend the brake system is non abs, you would bleed it the same way. ABS is not an 'unused' circuit, it is part of the hydraulic system - you bleed your brakes, by definition, you bleed the ABS circuit. The only way to be certain you've got all the air out (with ABS in particular, which needs the Motronic to be operated) is to bleed, use the system then bleed again. If you run out of fluid and pass the air bubble out the caliper you might have a problem. Toyota installed a bleed screw on this engine specifically to help with this. Remove the scan tool from the vehicle. Yes the scanner, you already know. I iniitally bleed the brakes on my truck till the fluid was perfect and clear coming out. This will mix the new w/ old fluid still in the system. The recommended way to do this is, of course, an expensive Tech 1 scan tool that is hard to find as well. I've used a gravel road and 40-50 MPH to accomplish this - plenty of actuation of the ABS. Hit "Go!" This triggers the ABS pump. Manufactures claim that it will push air out of the HCU without the use of an ABS scan tool, on all cars. To bleed an ABS equiped commodore or even to flush the whole system with new brake fluid is no different to a Non abs car. Just as the title states. Chevrolet Silverado 1999-2006: How to Replace Brake Fluid. 10 wire tie, zip tie, put it around plug and abs unit pulled tight, problem solved. then have them step on the brake and hold it. I understand that a very pricey scan tool is necessary when bleeding the brakes on a 1995 silveraro. You shouldn't have to worry about this usually. The connector is located in the fuse box at the lift kick panel. Granted the ABS system on the Bandit has a bunch of 90 degree turns and the module itself is really low, hence its perfect for trapping air. if your truely worried about the HCU having air in it, purchase a reverse brake bleeder, it pushes fluid into the lines threw the valves at the rotors, witch in turn, pushes the air up into the master cylinder. If you know your truck's brake fluid needs to be replaced, continue reading for this comprehensive guide for you to do the job yourself. ABS Brakes & More : How to Bleed Abs Brake Pumps , Bleeding the ABS Brake Control Module,On a Chevy Using a Snap On Solus Ultra , How To Bleed Air Out Of Your Car's Brake System. I replaced the mc myself and bled the brakes 5x. The only other recommendation I saw was to repeatedly engage the ABS (which is really hard when there's air in there) and bleed the brakes until you get the air out. Cycling these pintle valves releases the bubbles, allowing the air to be bled thru the bleeder screws. The automated bleed procedure opens the secondary circuits, then allows trapped air in the brake pressure modulator valve (BPMV) to flow outwards to the individual corners, where the air is purged from the system. bleeding abs system 2004 gmc envoy. So chances are pretty good you'll tangle with one real soon. Bleeding The ABS Module. Begin at the right rear wheel. After the ABS control module is repaired, it is advised to flush the brake system with fresh brake fluid. Remove the battery tray. Install Combo-Valve Depressing tool J39177. To flare is to spread the end of a metal tube so that a connector can be installed. The simple remedy for this is to bleed your system of the air that is contained within. My tips are: follow the book to the letter. I have cleaned out my whole system with alcohol before and compressed air to get it totally clean and there is no secret to the refill. Internal bruising can occur in the muscles of the legs and back. You should reference the FSM if you are not brake experienced. Including bleeding, labour etc. The Antilock Brake System depends on the data from the wheel speed sensor. repeat in steps shown abouve for starting the bleeding process and where to end up at. Bleeding ABS Module Bleeding the ABS module is more of a challenge than just bleeding the brake system because the ABS module has a lot of chambers and moving parts in it. Bleeding the brake lines removes the air that may have built up in the brake lines. I'm concerned because when I changed the front pads, I had to remove the bleeder valve to access the bolt that holds the unit together. Trapped air in the ABS solenoid is usually caused by the ABS pintle valves tendency to trap and hold air bubbles. Now use your pressure bleeder to 'pre-bleed' the hydraulics. 2004) > Ford Workshop Manuals > Mechanical Repairs > 2 Chassis > 206 Brake System > 206-09A Anti-Lock Control > Description and Operation > Diagnosis and Testing > Removal and Installation > Anti-Lock Brake System (ABS) Module - LHD. Me and a friend tried to bleed the brakes, we let the reservoir run dry by mistake and air got sucked into the ABS module we believe. Effectively "pulsing" your brakes causing the air bubbles to come out of all the little spots they like to hide. Does anyone know if this can be done as a DIY? I've read some posts that claim that a series of hard braking, then bleeding the brakes will force air out of the system. I had my wife help me once while bleeding brakes. Close the bleed valve once there are no longer bubbles in the stream. My old fluid had turned goey in the master and I did a vacuum bleed on the system. I believe there is air trapped in the ABS module. "The service ABS hydraulic control unit is supplied filled with brake fluid. To bleed an ABS equiped commodore or even to flush the whole system with new brake fluid is no different to a Non abs car. you may have a soft pedal even after a normal bleed once you drive the car to get it to the shop for the abs bleed because the abs system will test the system when you are driving and not using the brakes and may introduce some air into the service brakes. If air gets into an ABS module (especially on something like a Tahoe) it's nearly impossible to get it out without a force bleed from a scanner. I have learned a lot here and have usually been able to find answers to my questions/issues through searching the threads. ABS Brake System Bleed Procedure This is a description of brake bleeding for Sprint and Tiger models equipped with Nissin ABS brake systems. Then lift the connector to remove it from the module. I believe there is air trapped in the ABS module. i went to a salvage yard and got my self a used abs module and motor. In that case he will need to be attached to a scan tool that can activate the ABS system in order to completely purge the system. I'm going to be replacing the ABS pump on my 01 RS (along with everything else in the brake system except the hardlines) - and I'm looking for another way to cycle the ABS pump besides going for a drive and locking up the brakes. I cannot find any posts on the subject in the VE. i ended up taking it into GM, all good now. If air got into the lines, you must also bleed the ABS pump. The most recently reported issues are listed below. Plug in your VCDS diagnostic cable and select module 3 - ABS brakes. If you have replaced a brake hydraulic component and have introduced air in to the system, you need to use a diagnostic tool to cycle the ABS system in order to bleed all of the air from the system. I hate Blazer's ABS bleeding procedure, you are correct about using a factory scan tool (TECH II) to activating the ABS pump motor to bleeding. Kelsey-Hayes rear wheel antilock (RWAL) systems have been gotten a bum rap in recent years. When using our pressure brake bleeder, perform your bleed or flush in the same manner as you would for a non-ABS car. It can take many, many times around the vehicle doing a proper bleeding process to get all the air out. The 1A Auto experts will show you how to safely purge air from your brake system by yourself. 2 years ago, I performed a GMT900 brake upgrade on my 2004 Silverado with 4 To bleed it, you will have to bleed the whole system then cycle the abs then. The Kelsey-Hayes 4WAL ABS system has been used on many GM light trucks through the years. moral of the story, do your best to make sure air doesn't get into the abs controller or you're fubared. ) Before replacing any valve with a new or remanufactured valve, be sure to blow the air lines out either using the vehicle’s own air supply or shop air. Brakes are a little spongier, and the ABS sounds like it keeps trying to kick in when you stop at very low speeds, such as in a parking lot. other than that, the abs light is supposed to come on when you're in the module. Cycling these pintle valves releases the bubbles, allowing the air to be bled thru the bleeder screws. So you and others are correct: since the ABS module has not been replaced and failure there is not suspected, I should be able to move forward with a conventional brake system bleed. I still have squishy brakes and I can hear an air sound coming from the ABS module located on the passengers side under the hood when it press on the brakes. I’ve come to the conclusion that there must be air in the abs module as I’m not getting any bubbles at the callipers. I have an 07 Ford Escape Hybrid here with code C1477 in the ABS module. You shouldn't have to worry about this usually. Hello all, Just wanted to share some info I gleaned from a procedure I attempted to purge an annoying air bubble from my 540's ABS module. RepairShellService. If there is air in the brake lines, the braking effect will be diminished. Attach some tubing to the bottom of the syringe and attach the tubing to the bleeder at the rear caliper. AIR BRAKE SYSTEM TROUBLESHOOTING 1. 1996 will need a GOOD scan tool and some clips for the valves to bleed the ABS unit. If it was a '96 or newer the Tech2 will do that procedure of bleeding the ABS. Hold DLC button down for >5secs. The modulator may have eight to 10, or more, ABS/traction control solenoid valves, plus various check valves and dead-end ports. Does the peddle do the same when engine is not running. So really, there is no ABS scan tool available at low cost. Several months back, I had major trouble with the dreaded Trifecta lights (ABS, BRAKE, DSC) and nothing I did fixed the problem. General Motors recommends that you bleed the brake lines on the 2002 Chevrolet Silverado as part of regular brake maintenance. Then you need to depress the brake pedal. So if you get air into brake system at the master cylinder, you will absolutely end up with air in the ABS module. If you don't have access to something like that, you can cycle the ignition key. Sounds like I just need to keep bleeding the system. So, now you know how to bleed the ABS module yourself at home, however, you also now know that it is a hard task to do at home. You shouldn't have to worry about this usually. But you can do manual bleeding by use special clamps to press the valves in the ABS hydraulic module (integrated pump motor). We are reassembling the ABS module and pump and putting it back on his vehicle. usually only needed if the abs pump has air in it, most times can be bleed the old fashioned way with no issues. I was told the ABS pump must be running to get the air out of the ABS valve body, but there is no bleed port on the valve body itself. You will need a scanner that can access that. I have used the scanner tool to bleed the abs pump, not sure exactly what it does within the pump. if air moved up the line and got into the ABS pump then you have to bleed the brakes, then cycle the pump (DRB tool), then bleed them again. It's a slow leak, but I have to bleed out the front calipers every 3-4 days, because it is letting air in the front half of the system. If air did get into the hcu or if you disconnected any brake like at the master cylinder or. It involves performing a manual brake bleeding, followed by use of the scan tool to cycle and bleed the HCU pump and solenoids. Read honest and unbiased product reviews from our users. How to Bleed Brakes with Anti-Lock Braking Systems (ABS) and he says the Italian manufacturers don't bother purging the ABS module during a brake bleed. so how could i have a working abs module, then now back to were i started? what causes the abs module to stop working, besides the little wires that snap. Basically it activates teh ABS system and pushes the air out of the module back into the lines so they can be bled. I've rebuilt my front calipers. ABS Brakes & More : How to Bleed Abs Brake Pumps , Bleeding the ABS Brake Control Module,On a Chevy Using a Snap On Solus Ultra , How To Bleed Air Out Of Your Car's Brake System. Disconnect the wiring harness from the ABS control module. KirkW Rockstar. Some have reported that they bleed teh brakes then took it out on gravel and locked up the wheels forcing the pump to cycle and then bleed tehm again. I bleed the brakes and didn't take into account the car as abs since it is my first car that has it. You should reference the FSM if you are not brake experienced. Not a great idea perhaps to press it all the way into the floor--some say you can damage master cylinder seals if it moves to extreme limits. You need to start your bleed at the master. I know there is a function that can be put to good use with a Vagcom cable so the ABS can bleed itself with a bit of help from me. Now, let's get into the process of bleeding your brakes. Major components include the power brake booster, master cylinder, the wheel speed sensors, and the Hydraulic Control Unit (HCU) which contains the control module, a relay, and the pressure control valves. I used Vida to activate the ABS while opening the bleeding valves and had no luck with that either. The modulator may have eight to 10, or more, ABS/traction control solenoid valves, plus various check valves and dead-end ports. The brake system on the bikes allows them to be conventionally bleed using a piece of tubing, a bottle and the brake lever. Thanks Nick for all your help. with the engine off you deplete all the vacuum reserve and the pedal becomes harder. 2 years ago, I performed a GMT900 brake upgrade on my 2004 Silverado with 4 To bleed it, you will have to bleed the whole system then cycle the abs then. you first have to bleed the block. Hoping I don't have to get it rebuilt and maybe a good bleeding or sensor will fix it. This might not be what you want to do with your car (gravel, rocks flying and such), but you could use a wet parking lot, big grass field, etc. When you are bleeding the air,, if the ABS module catches a whiff of it , it "may" throw a code and be disabled, and your ABS light will stay on. I've done some internet searching that has led me to think that the problem is either air in the ABS module or trash in an ABS accumulator valve. After I was done went to do a bleed and no pressure builds when truck is running, builds pressure with truck off but disappears when started. Be sure to bench bleed it before you install it, and if you have ABS, make sure you also bleed the ABS system, OR if you can't bleed the ABS system have the new master cylinder ready to install, and remove the brake lines as quickly as possible from the old master and have a friend hold thier fingers over the ends of the lines. After all is said and done, test ride and brake hard enough to activate the ABS system, then re-bleed the front and rear brakes,as there is fluid on either side of the spools in the ABS module. That dog won't hunt. Bleed the base brake system using the standard pressure or manual bleeding procedure. I'll check the FSM when I get home and correct if. The next few days I experienced some really INTENSE moment in the parking lot, my car died while going up the parking. I could envision doing that two or three times, and that might be enough to expel air from the chambers. ABS Bleeding. Others do not and require the use of a scan tool to cycle the ABS solenoids while you bleed the system. It’s definitely impossible to do it just by pumping the brake pedal. On problematic bleeding I've had luck elevating the end about four feet, waiting about five minutes and then bleeding them out. You use the scan tool to tell the ABS to self-bleed, then you bleed the brakes normally. Now I've finally got it all back together and tried to bleed the system I'm led to believe there is air in my ABS module which is confirmed by my mushy middle pedal. This procedure uses a Scan tool to cycle the solenoid valves and run the pump in order to purge air from the secondary circuits. After replacing, I had a hard time getting a nice firm pedal despite bleeding the s*** out of my brakes. Bleeding the ABS brake system only on 1995 C/K trucks only, Help!!!!! 16 Answers. A mechanic friend says the there is air in the ABS block (Rear Wheel only) and you either have to get it to activate a few times while standing on the brakes (The front wheels ALWAYS lock up before the ABS comes into play), or take it to Ford so they can bleed it by opening the solenoids on the ABS block. Hopefully in the bleeding process the OP did not let the reservoir run dry. i ended up taking it into GM, all good now. Once the air is gone from that then pull what little may have been trapped in the ABS module. 2015 RTSE6 Looking to do a complete bleed out of the brake system. The ABS system is made up of the ABS module, and ABS sensors at each wheel. Turn the bars full left so the reservoir is the highest in the system when. DESCRIPTION & OPERATION SYSTEM DESCRIPTION When ignition is turned on, control module activates warning. I was told this by another member in my thread : "Be sure you bleed the abs module too! If you don't, next time it gets used it will put air into the system. I'm going to be replacing the ABS pump on my 01 RS (along with everything else in the brake system except the hardlines) - and I'm looking for another way to cycle the ABS pump besides going for a drive and locking up the brakes. How To Bleed Air From Abs Module; 0 How To Bleed Air From Abs Module. Granted the ABS system on the Bandit has a bunch of 90 degree turns and the module itself is really low, hence its perfect for trapping air. Then you will have room to get a small grinder or Dremel Tool to grind the heads off of the evil rusted bolts. A second manual brake bleeding is then required to remove any air remaining in the system. Buy Auto Parts is your home for Wholesale Auto Parts, Car Parts, Truck Parts, OEM Car Parts, and Performance Parts and Accessories. The BBS help pages for the WABCO SLABS module don't appear to give a procedure for bleeding but make a distinction between the ABS power bleed which "opens all of the ABS valves" and the ABS modulator bleed which "opens the abs modulator valve". Can You Drive With An ABS Light On? It does not mean you can drive your car from point A to point B in a safe way when your ABS light turns on. Building an In-Dash Air-Mixture Monitor Exhaust System Replacement Rear Muffler Replacement. , Honda Accord Civic ABS Bleeding & Fluid Replacement , Bleeding difficult to bleed brakes with an ABS module with one person , How to Bleed ABS Brakes with DS. It may be necessary to bleed the system at all four wheels if a low fluid level allowed air to enter the system, or the brake pipes have been disconnected at the master cylinder or combination valve. I have a late 2007GS. For the purposes of this How-to, we're going to ignore ABS unless we've properly bled the brakes and they're still soft. My tech2 code reader, when I go through special functions, reads that it "can't connect to ABS module". Bleeding The ABS Module. When bleeding, keep the amount of the fluid between the Min. Download the Complete 2009-2010 ABS Catalog. moral of the story, do your best to make sure air doesn't get into the abs controller or you're fubared. How BMW X5 E53 ABS block Bleeding using Foxwell NT510 scanner July 15, 2016 Sales foxwellsupport. Original service manual says to bleed like regular brakes. One thing I used to do in the past after replacing a master cylinder or just doing a system flush was actually start at the drivers front wheel. We found that the bleeder screw leaked air in slightly even when in the closed position. Repair any DTCs prior to performing the ABS bleed procedure. i went to a salvage yard and got my self a used abs module and motor. Be sure to bench bleed it before you install it, and if you have ABS, make sure you also bleed the ABS system, OR if you can't bleed the ABS system have the new master cylinder ready to install, and remove the brake lines as quickly as possible from the old master and have a friend hold thier fingers over the ends of the lines. Hey Everyone, So my ABS pump and module needs to be replaced and was curious to what everyone's thoughts are. She had to use both feet before getting the job done. This is a Kelsey Hayes 325 ABS module repair and upgrade service for Chevrolet vehicles. Somebody said I need to bleed the abs module using a scanner. In The Shop: ABS Modulator Failure Harley ABS. My brakes were working fine before I did the 288mm brake upgrade,,After finishing the job, I bled off all 4 wheels like 15 times, and my brake pedal when pressed goes all the way to the fllor, now I finding out that my ABS pump had probably gone dry on fluid, and I need to bleed it off, I tried following the ross tech how to, and I am not getting anywhere, as far as I can read from it, it. If you suspect air in the ABS system, you can bleed the lines at the ABS pump as well. I'm willing to buy the pressure bleeder if anyone feels that would really solve my problem of getting the air out of the system and that I don't first need to run the ABS pump. Turn the bars full left so the reservoir is the highest in the system when. However, I understand the ABS module can be a little awkward, and my first ezebleed attempt left air in the system. Re: Bleeding ABS. My tips are: follow the book to the letter. I also tried again to bleed the brakes with this new ABS module in (both with the pedal and vacuum pump while running the car) but no fluid is coming out at the right rear. Not having any luck finding write-ups on how to bleed the ABS unit on an ABS 2 system either. I took it to a dealer for a pressure bleed job, and they screwed it up worse. The ABS module, that is the electrical brain that the connector is attached to isn't typically the problem. Using flare wrench, slightly open forward brake pipe fitting at ABS modulator assembly. An air bubble is an air bubble. If there is air in the brake lines, the braking effect will be diminished. ABS Braking Basics. Hello boys, How do I bleed the brakes after replacing ABS module on a 09 120 1kd it's the module on the RHS under the bonnet not the one under the reservoir , thinking about the air that will go in when the pipes are taken off and on , read iI might need a scan tool haven't got one yet. I believe some air has made its way up to a coupler between the MC and calipers and will not flush out down to the calipers using the old fashioned pedal bleed method OR some air has made its way up to the ABS VSC solenoid area and again, the old fashioned pedal bleed method can't remove it. Install a clear hose on the bleed screw. When I go to fill and bleed the system for the first time, what is the best way to get as much air out of the system as possible the first time though - traditional two person method, power bleeder, car on, car off?. Pump fluid thru the lines and let the calipers gravity bleed. How do we go about bleeding the brakes? I figured we could use gravity to bleed the main brake system. If you are doing normal pad replacement and do not have an ABS light on you should be good to go, only when you have air in the system or a fault code (READ) ABS light on flashing or brakes not working properly you will need to see your dealer Harley Davidson Community here is a good read on ABS light. The more advanced functions include ABS bleeding, brake bleeding, and active tests for ABS and SRS. After talking with the dealer, I am convinced they don't know how to fix it telling me that the module is bad or it could be the master cylinder. This fluid that is left over in the ABS valve body really won't hurt anything, also this fluid did not boil during your track day unless the ABS kicked in. We are reassembling the ABS module and pump and putting it back on his vehicle. This has worked a few times on older ABS systems but never got it to work on. Changed brake lines that were leaking, bled brakes, filled resevoir, rebled - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Don't let the reservoir get low!!!! Get a good feel for your brakes before you start then compare after. By the way, if you ever need to replace your brake fluid, try as hard as you can to avoid getting air into the ABS controller. But you can do manual bleeding by use special clamps to press the valves in the ABS hydraulic module (integrated pump motor). Including bleeding, labour etc. As a result, the ABS light illuminates on the dashboard. I hate Blazer's ABS bleeding procedure, you are correct about using a factory scan tool (TECH II) to activating the ABS pump motor to bleeding. The guys probably got air into the ABS module and only a dealership computer could get that air out of the system. Others do not and require the use of a scan tool to cycle the ABS solenoids while you bleed the system. 2002 Impala:ABS Control Module Replacement Remove the left hand fender brace, cruise control module, and air cleaner duct. The garage is telling me that after they install the rebuilt module, they will have to reprogram the computer. If there is air in the brake lines, the braking effect will be diminished. Kelsey-Hayes RWAL Antilock Brakes. The anti-lock brake module is leaking. To bleed the ABS system there is a special C clamp that you put on the ABS unit to collapse the pistons to open them to remove traped air as you bleed the brakes. pressure bleeding 4. There was no air in your ABS system, when the brake line is open it drips from gravity. I had my wife help me once while bleeding brakes. The computer is used to run a service program and cycle all the valves, so that you can get the air out. ABS brake bleeding - soft brake pedal now On my '03 Jetta w/ABS, I did a simple pad, rotor and e-brake cable replacement this weekend and thought it was a good time to bleed the whole brake system. Open one side and let it drip for an hour. Original service manual says to bleed like regular brakes. Replied by jjohnson1 on topic 2003 GMC Sierra ABS brakes bleeding procedure Bleeding the old fashion way should work fine for calipers and brake pads.