ABS Hydraulic Modulator Types & Components

 ABS Hydraulic Modulator [Hydraulic Control Unit (HCU)]
 ABS Hydraulic Modulator Types
 ABS Hydraulic Modulator Components:
 ABS Pump and Motor Assembly
 HCU Solenoid Valves:
 2-position solenoid valves & ABS Operation Modes
 3-position solenoid valves

[@richardwallinger1683]

I am fascinated by technology .. I was a Donnington GT championship outright champion in 1980. My self made Championship winning car had twin master cylinders to allow for BALANCED braking . As the driver, I was the ABS modulator . A recent brake pad and fluid flush on my newly acquired 2008 Citroen C5 saloon car . Resulted in a pedal going to the floor whenever the engine was started . Otherwise the pedal was a good firm TOP pedal .I was convinced that this sinking pedal was possibly worn Master cylinder seals , failing under the extra pressure from the Brake booster . After flex honing the brake master cylinder and replacing the seals .€6 euros . The sinking pedal still existed . I bought a Foxwell NT630 Plus abs scan / bleeding scanner .EXCELLENT. this scanner allowed me to cycle the ABS module and resulted in a marked improvement . Still not 100% to my liking . The Foxwell NT 630 Plus scan tool displays the operation of all four wheel speed sensors . Showing they were all functioning with no faults . I have made a couple of test drives involving a few firm brake applications to bed in the new all around brake pads . The pedal is now starting to show some marked improvement in response . and the dreaded Sinking brake pedal to the floor has seemingly sorted itself out . This has left me wondering what the ABS module could have operated to introduce the sinking pedal . Throughout my long life of driving I have never had any issues with maintaining my own vehicles braking systems . Would Vacuum brake bleeding have upset the functions / operation of the ABS module / solenoid valves etc . I made a super Vacuum bleeding arrangement which functions really well . Unfortunately My Foxwell NT630 Plus abs scan tool does not show the functions / operations of the ABS module . It would be nice if the various operations could be shown visually on the scanner display screen . This would allow the operator to diagnose a sticky / faulty abs solenoid / valve . The scanner displays LISTEN.

[@mohammad45h]

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[@AB-C2]

Thank you very much ❤

[@RobertBeck-pp2ru]

Thank you, robot.

[@vincentchoo7471]

Excellent graphic, thank you.

[@manojguha2046]

Very good and clear explanation.

[@muralis3535]

Very yousfull❤ 3:36

[@dmitrypravednov8518]

Any idea y my pressure is not good in my abs unit I just changed one with a use one same no different on brake pressure can the unit be adjusted on a dealer computer too get more pressure to my brakes

[@PlumbNutz]

No

[@apacheturtleisland9462]

really good , thaks

[@1960livvy]

Great Video - Thanks

[@muazzamali6150]

Good

[@kassabdelnass1385]

Salut c'est géniale Mais j'ai besoin d'un moteur ABS pour l'achat comment faire

[@aliabdalla6423]

2011 Toyota sienna se abs hidrolek

[@carlosperaltacontrerasthe1955]

To similary to air bags automatically sistem or censor mechanical

[@JuanMartinez-qf7vu]

Como montar bomba de abs de un pacifica

[@HouseCallAutoRepair]

If you like listening to computer voice.... Meh.

[@aabdev]

Water

[@jitendraprasad507]

Like to buy abs pump 4 1.8 hybride car from fiji

[@richfuturebydsk2562]

Thanks a lot 🙏 Much support from 🇿🇦 ZAR - Durban RichFuturebyDSK Clothing...