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Old 02-25-2013, 12:13 AM   #1
motorlaw
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Front Wheel Bearing and ABS sensor....

I dont know if this has been posted before or not so if it is I apologize. My mechanic friend of 20 years and I this weekend took of both front wheel hubs of my SVT focus and brought it to Pepboys to have new bearings pressed in and the old ones pressed out. I myself purchased the new bearings from Advance Auto. When we got the hubs back and finished putting them back on the car we got ABS and traction control sensor warnings. Upon further research I am told that you have to put the bearings in the proper way and not BACKWARDS like my mechanic friend is saying pepboys did. We DO know that they blocked the hole with the circlips for the ABS sensor (which we wound up fixing) once we did the sensor went in NO problem.

My questions are...1) Is it possible I bought the wrong bearings (IE abs bearings or NON abs bearings) or is it one bearing fits both abs and NON abs. and 2) if it IS the case that could not have gotten the right ones. ....did pep boys put the bearings in backwards.

Any help is MOST appreciated. thanks.


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Old 02-25-2013, 12:39 AM   #2
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Moved to "Wheels, Tires, Brakes & Suspension".
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Old 02-25-2013, 06:11 PM   #3
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Front wheel bearings and ABS

There are two different front wheel bearings for 2000-2007 Focus, one for non-ABS and one for ABS. Bearing size is the same, but the ABS bearing has a built-in magnetic ring that makes the ABS sensor work. Not only do you need the correct bearing for ABS but th bearing must be installed with the magnetic ring facing the sensor. Richard Bridgette, Huntersville, NC
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Old 07-10-2013, 12:55 PM   #4
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Quote:
Originally Posted by Richard Bridgette View Post
There are two different front wheel bearings for 2000-2007 Focus, one for non-ABS and one for ABS. Bearing size is the same, but the ABS bearing has a built-in magnetic ring that makes the ABS sensor work. Not only do you need the correct bearing for ABS but th bearing must be installed with the magnetic ring facing the sensor. Richard Bridgette, Huntersville, NC
Could somebody please advise me where the front sensor is located on a 2000-2007 Focus equipped with ABS?? Mine does not have ABS, but I would like to install my bearing in the same orientation as an ABS-equipped car.

On a car with ABS, does the red side of the bearing point outward toward the wheel flange and the black side of the bearing point inward toward the transmission....or is this wrong?

All the comments on the forum say the black side of the bearing point toward the sensor, but since I have no sensor, that doesn't help me lol.

thanks
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Old 07-10-2013, 11:22 PM   #5
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Front ABS sensor is located on the spindle, on the top, outside of where the strut mounts. This is the location on my 2001 sedan. It can be removed with a 7mm socket.

Your correct on the bearings. Red points outward, black inwards.

My Centric Brand bearings were black on both sides. I just guessed which side was which, and they work. Either i got lucky, or it doesn't matter for the bearings i purchased. I dunno.
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Old 10-09-2014, 08:03 PM   #6
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Quote:
Originally Posted by motorlaw View Post
I dont know if this has been posted before or not so if it is I apologize. My mechanic friend of 20 years and I this weekend took of both front wheel hubs of my SVT focus and brought it to Pepboys to have new bearings pressed in and the old ones pressed out. I myself purchased the new bearings from Advance Auto. When we got the hubs back and finished putting them back on the car we got ABS and traction control sensor warnings. Upon further research I am told that you have to put the bearings in the proper way and not BACKWARDS like my mechanic friend is saying pepboys did. We DO know that they blocked the hole with the circlips for the ABS sensor (which we wound up fixing) once we did the sensor went in NO problem.

My questions are...1) Is it possible I bought the wrong bearings (IE abs bearings or NON abs bearings) or is it one bearing fits both abs and NON abs. and 2) if it IS the case that could not have gotten the right ones. ....did pep boys put the bearings in backwards.

Any help is MOST appreciated. thanks.
How did you unblock the hole for the ABS sensor? I am having a problem with the hole being obstructed somehow and the sensor not going in, after bearing replacement. The bearing was installed red side out, which is the correct way, as I understand it.
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Old 10-09-2014, 08:22 PM   #7
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Most bearings available now are for cars with ABS so the parts manufacturers only need to carry one part number.
The best way to check the bearing is to test with a piece of steel to see which side it sticks to.
The magnetic side of the bearing faces towards the engine/transmission and the C-clip.
If you are looking at the back side of the hub/knuckle, the magnetic side of the bearing faces the ABS pickup that protrudes through the knuckle.
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Old 10-10-2014, 05:41 AM   #8
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Quote:
Originally Posted by deandeib View Post
How did you unblock the hole for the ABS sensor? I am having a problem with the hole being obstructed somehow and the sensor not going in, after bearing replacement. The bearing was installed red side out, which is the correct way, as I understand it.
Is it possible that it's the c-clip that is obstructing the ABS hole? It can't be the bearing itself since it must be pressed in to the stop inside the knuckle. I'm thinking. I can see what looks like the end of the hub turning inside but the obstruction itself does NOT turn. Might be that the gap in the c-clip has to be lined up with the ABS hole so the sensor can go in all the way.
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Old 10-10-2014, 10:50 AM   #9
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Quote:
Originally Posted by deandeib View Post
Is it possible that it's the c-clip that is obstructing the ABS hole? It can't be the bearing itself since it must be pressed in to the stop inside the knuckle. I'm thinking. I can see what looks like the end of the hub turning inside but the obstruction itself does NOT turn. Might be that the gap in the c-clip has to be lined up with the ABS hole so the sensor can go in all the way.
I don't own the car, but I'm guessing the answer is yes.

On an SVT thread:
Quote:
Originally Posted by BadIdea View Post
Side note - if you ever replace the wheel bearing the opening of the c clip has to be at 12 oclock to allow the speed sensor to properly insert.
Looks the same way in this image:

http://www.underhoodservice.com/tech...abs-tone-ring/
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Old 10-10-2014, 04:20 PM   #10
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Looks good

Moved to Brakes, Suspension & Chassis for reference.
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