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Thread: Question

  1. #1
    Join Date
    Jun 2007
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    Martinsville,Virginia
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    Question

    Today my dad and i put new brakes on the 89.Front and rear.when it was up on lift we noticed ,in front and back 4 sprocketes 2 in front the other 2 in rear where the axle housing meets in the middle on both sides of rearend.were a little dirty dad cleaned them off real good.Question is what are they for and what do they do.

  2. #2
    Join Date
    Apr 2002
    Location
    St. Louis, MO
    Posts
    6,537
    Quote Originally Posted by pap View Post
    Today my dad and i put new brakes on the 89.Front and rear.when it was up on lift we noticed ,in front and back 4 sprocketes 2 in front the other 2 in rear where the axle housing meets in the middle on both sides of rearend.were a little dirty dad cleaned them off real good.Question is what are they for and what do they do.
    Those are the ABS sensor rings.
    Kurt K (e-mail)
    SCCoA Member #: 443
    '92 SC AOD -- 11.521s @ 116.748mph, 2.0 AR power
    . . . . . . . . . -- 13.547s @ 101.01 mph, only w/ bolt-ons
    '95 SC 5spd -- All Stock, except 17" Simmons wheels.
    '90 SC 35th Anny 5spd -- 3rd owner, 16k miles
    2 '89 XR7 5spd's -- on their way out, really!

  3. #3
    Join Date
    Jun 2007
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    Martinsville,Virginia
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    1,254
    what are they for and what do they do.

  4. #4
    Join Date
    Nov 2005
    Location
    Fort Wayne, Indiana
    Posts
    2,998
    you have a sensor that catches a signal each time one of those teeth come close to it. Think of the sensor as a magnet that sends a signal out every time one of those teeth get really close. Those sensors think much faster then you and I can considering how fast those teeth spin! Good idea on cleaning them up, sometimes with enough crud on the sensor magnet or ring can cause the signal to not be very good. I beleive I had a problem at one point, cleaning up all those sensors and reluctors seemed to fix my intermittent ABS light.

    Chris
    Last edited by mywhite89; 06-11-2008 at 09:46 AM.

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