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How to bleed air out of ABS pump?

Discussion in '1st Gen. Tacomas (1995-2004)' started by MamaTried81, Oct 2, 2019.

  1. Oct 2, 2019 at 8:06 AM
    #1
    MamaTried81

    MamaTried81 [OP] Well-Known Member

    Joined:
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    Oakland, CA
    Vehicle:
    '02 TRD Tacoma 4x4 V6 XtraCab SR5
    I searched the web a bunch and the only answer I find is "keep repeating the bleed process", although I saw some vague mentions of special/dealer tools?

    I disconnected my brake line to inspect the inner seal on my rear axle, and ever since then my ABS pump sometimes kicks on for a second or two when I brake gently at low speeds.

    I tried bleeding the brakes by having my gf work the brake pedal while I went around to all 4 wheels in proper sequence, etc. It didn't fix the issue, but we didn't have the ignition turned on--and I just read that for some Tacomas (01-02?) you might need to have the key in and the ignition on?

    I'll give that a try after work, but any other advice? Thanks!
     
    Last edited: Oct 2, 2019
  2. Oct 2, 2019 at 8:33 AM
    #2
    MamaTried81

    MamaTried81 [OP] Well-Known Member

    Joined:
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    Oakland, CA
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    '02 TRD Tacoma 4x4 V6 XtraCab SR5
    Based on the service manual, which is for 2003 since that's all I can find, there is no special way to bleed the ABS actuator. Sounds like I just need to keep bleeding the system.

    One thing worth noting is that I bled the system in my driveway, which is a bit sloped. So the front of the truck was significantly higher than the rear when I did the bleed, which means the air may have flowed up and into the ABS actuator. Maybe I'll back into the driveway this time, hopefully that coaxes the air bubbles towards the rear brakes instead.
     
  3. Oct 2, 2019 at 6:40 PM
    #3
    MamaTried81

    MamaTried81 [OP] Well-Known Member

    Joined:
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    Oakland, CA
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    '02 TRD Tacoma 4x4 V6 XtraCab SR5
    SOLVED: It had nothing to do with brake fluid.

    I didn't put the ABS sensor back in all the way. Doh.
     
    CrashN'Burn likes this.
  4. Oct 2, 2019 at 9:37 PM
    #4
    Glamisman

    Glamisman Well-Known Member

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    for future reference when other peeps search on this topic... find a dirt or gravel road and while driving 10 - 15 mph hit the brakes hard and the pump will actuate and "self bleed".
     

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