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Brake whine while idling

Discussion in '1st Gen. Tacomas (1995-2004)' started by TacomArizona, Mar 12, 2017.

  1. Mar 12, 2017 at 11:27 PM
    #1
    TacomArizona

    TacomArizona [OP] Well-Known Member

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    '04 V6 2wd A/T, with the engine idling there's a high pitch whine coming on the booster side of the compartment.
    Pressing the brake pedal the whistle gets low & depressing the pedal it gets high again. Vacuum hose causing the whine ?
     
  2. Mar 13, 2017 at 12:25 AM
    #2
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

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    Fabtech AAL, Billie's wrapped with 880's , Tundra big brake conversion, bully bars and Pioneer DDin Stereo/dvd with exterrnal usb ports. 240K and going strong.
    Nope booster is bad.
     
    keakar likes this.
  3. Mar 13, 2017 at 7:50 AM
    #3
    TacomArizona

    TacomArizona [OP] Well-Known Member

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    Thanks mechanicjon, I was afraid I was in the $1000 range for this repair :frusty:
     
  4. Mar 13, 2017 at 8:02 AM
    #4
    TacomArizona

    TacomArizona [OP] Well-Known Member

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    Anyone have a booster available in AZ ? Special order from the dealer.
     
  5. Mar 13, 2017 at 8:26 AM
    #5
    keakar

    keakar Well-Known Member

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    used to have - 99 2.4L I4 5 lug & 04 prerunner v6
  6. Mar 13, 2017 at 9:02 AM
    #6
    tan4x4

    tan4x4 Well-Known Member

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    Keakar makes a good point here, assuming that the booster is, in fact, the issue.

    BUT . . . . I've never had a booster failure in any vehicle of mine (and I'm an old fart), so I would have to be certain it was the issue before dropping $$$ on a new one.

    if this were mine, I'd first replace the booster with one from a pull-a-part wrecking yard (about $25), just for diagnosis purposes. If it fixed the problem, then run it until it fails, then get a new one (~900), like KEAKAR did.

    To narrow it down to the booster, have you tried disconnecting the booster vacuum line from the intake, and plugging that port?
     
  7. Mar 13, 2017 at 1:08 PM
    #7
    TacomArizona

    TacomArizona [OP] Well-Known Member

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    Dropped it off to have the mechanic look it over. Found a reman booster w/labor $500+ if that is the problm.
     
  8. Mar 13, 2017 at 5:41 PM
    #8
    TacomArizona

    TacomArizona [OP] Well-Known Member

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    Booster was bad, reman part + labor $575, better than the dealer.
     
  9. Mar 13, 2017 at 8:04 PM
    #9
    keakar

    keakar Well-Known Member

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    used to have - 99 2.4L I4 5 lug & 04 prerunner v6
    that wasn't terrible but it takes 30 minutes to replace with just 6 bolts (4 under the dash and 2 for the master cylinder) and the brakes don't even need bleeding after because the brake lines don't need to be disconnected.

    glad you got it sorted and it wasn't that bad a price if your not able to do it yourself
     
  10. Mar 13, 2017 at 9:38 PM
    #10
    Fuergrissa

    Fuergrissa Well-Known Member

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  11. Mar 13, 2017 at 10:15 PM
    #11
    TacomArizona

    TacomArizona [OP] Well-Known Member

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    Definitely worth the labor charge, never changed out a booster b4 but good to see a write up just incase.
     

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