How To: Service/Replace ABS Wheel Speed Sensor

Discussion in 'Tech Info' started by Freedom Motorsports, Jul 22, 2011.

Car Parts
  1. Freedom Motorsports

    Freedom Motorsports SyntheticMotorsports Supporting Vendor Supporting Member

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    That actually sounds like the hub bearings themselves are going out. The best way to eliminate that though is to jack up the front of the truck and grab the tire at 6 & 12 o'clock and push in and out, if it moves back and forth at all doing this then the hub bearings need to be replaced. I do highly recommend doing both sides at the same time. Also keep in mind that it is also possible that the hub bearing can be going bad without having play in it, so even if that test doesn't produce any movement, it is possible that the bearings need replaced anyway.

    As for the sensor removal, there isn't really any special trick to it and if this has never been performed before, it is very possible to break the end of the sensor off during removal. The good thing is that the sensor itself is fairly cheap to replace.
     
  2. sawmkw

    sawmkw TYF Newbie

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    Chris, you rock!

    My ABS light has been on for a year now and was not working. As soon as it quits snowing I'm checking this out.
     
  3. pdalton

    pdalton TYF Newbie

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    I couldn't tell what year vehicle this "How To" applies to, but I think it's not applicable to mine, which is a 1997 Suburban C1500 5.7L.

    Is there a "How To" somewhere that provides the information about servicing/replacing the ABS Wheel Speed Sensor on a 1997 model?

    I also would like to know whether there is a way to determine whether it's the left or the right side front wheel sensor that's bad.

    Thanks,
    Paul
     
  4. Freedom Motorsports

    Freedom Motorsports SyntheticMotorsports Supporting Vendor Supporting Member

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    This DIY was meant for 2001-2006 model vehicles for the most part. However, the ABS speed sensors should be in fairly the same place on your truck. To be able to tell which side is bad, you need a scan tool that will read the ABS codes. Those codes will help to narrow down the side. But, it is very possible that your ABS module itself is bad. You could very well wind up replacing the sensors, hubs and all of that and still not fix it before you replace the module itself.
     
  5. YukonXL04

    YukonXL04 The Riverboat Supporting Member

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    Good luck. I hate tracking down abs stuff without the badass code reader.
     
  6. pdalton

    pdalton TYF Newbie

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    So it sounds like I need to go to the dealership to get a diagnosis of which speed sensor to replace or if it's the ABS module, huh? Any idea of what would be a reasonable fee for doing that?
     
  7. YukonXL04

    YukonXL04 The Riverboat Supporting Member

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    I wouldn't pay more than $75-$100 for it. Other auto shops can do it as well. Make sure to get the actual code for us though
     
  8. Yukon_01

    Yukon_01 TYF Newbie

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    Thanks for posting this information! I just did this to the my wife's 2001 Yukon XL. Solved the problem completely.

    Thanks again!
     
  9. Gunclasses

    Gunclasses TYF Newbie

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    The shop I just took my 2005 Yukon to said this was in the hub assembly and that I shouldn't try to tackle this. This looks easy though. Am I right in assuming this will work for my 2005 Yukon?
     
  10. Freedom Motorsports

    Freedom Motorsports SyntheticMotorsports Supporting Vendor Supporting Member

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    I never received an email notification of this comment. I sincerely apologize for missing it. To answer the question for everyone, yes, this is applicable for an 05 Yukon. The ABS sensor is mounted to the top of the hub assembly, it is the ABS gear that is inside the hub assembly. This service thread does not deal with opening the hub assembly itself so the shop in question is mistaken.
     

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