Just replaced the right front wheel bearing on my '13 XC70 and now I am getting a an ABS warning light. And yes, I re-plugged in the ABS sensor cable. Any ideas?
ABS warning
gorj
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Does it not happen so often, you repair one thing and another pops up. The ABS sensor on the right side is defective. It looks just fine, but it does not pick up the wheel rotation. I have discovered something else also; when any of the four sensors is not sending a wheel rotation signal the cruise control will not work either.
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Might be that you simply need to reset the ABS using VIDA/DICE. I would try that first to see if the warning goes away or have you confirmed that it is in fact defective?
I am not sure about how your bearing is made. If it is a press in bearing and the ABS sensor is reading the side of the bearing I have seen people press in the bearing with the wrong side of the bearing facing the sensor thus it will not read. Just a possibility I thought worth mentioning.
On this model the bearing is already pressed into the hub, so there is no way to mount it backwards. On the engine side of the bearing there is a magnetic ring that the ABS sensor picks up the wheel rotation from. It works on what is called the Hall effect. On some wheel bearings there is a magnetized bearing on the outer bearing that activated the sensor. I believe Jaguar has that type of bearing.
I looked it up for my 2008 XC70 and I see that that bearing is pressed on the hub. I am curious, in case I have to change mine, how you were able to change that bearing yourself? Did you have the specialized press tools required? Thank you for the information.
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Tighten the "nuts" on the wheel a bit more and the sensor will be fine again. I had that done not too long ago... it worked!! Also the pick-up in the hub.
I have a 20 ton press. I just removed steering knuckle and put it in my press and pressed out the bearing/hub assembly. Then after I cleaned t the mating surface inside the knuckle where the bearing fits, I pressed in the new bearing. You can put a steel pin in the hole where the sensor fits and that will stop the bearing from going in to far. e sure to pull out the sensor before you take the steering knuckle off. It is also a good idea to clean out the hole where the sensor fits and also wipe off the sensor. I was surprised this bearing went bad. I have owned a Volvo of some type since 1967 and never had any wheel bearing go out. One Volvo had over 400k miles when I sold it!
Thank you. Did you press the bearing in by applying pressure to the wheel hub or use some sort of adapter to press the bearing between the bearing and the wheel hub where the lug bolts are. Sorry for the questions but when I changed my struts and had my knuckles off I wondered how I could ever change that bearing. I have seen the Volvo special tools but that would be cost prohibitive and I might as well pay the dealer to do the job. I really do not like going to a dealer for anything as I prefer to do everything I can myself.
That did not work, but thanks anyway. I have run VIDA diagnostics and It tell me the sensor is an "incorrect part" That is impossible because I installed a new sensor with the same results and also switched the left sensor to the right, and still it gives me the "incorrect part" I have erased the code several times but it keeps coming back. Very frustrating.
No I did a continuity check on the wire harness and it checked out fine.I assume when you switched the ABS sensor between the right and left side the warning continued on the right side?
Did you just switch the sensor or the harness as well? (#3)
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I used an adapter on the knuckle to cradle it against the press stage. Then I used a very large 3/4" socket to press out the bearing from its outer edge. The socket just barely passed through the bearing hole in the knuckle. Then I pressed in the new bearing with a 1/2" thick washer that fit inside the center of the hub where the bolt goes that tightens the hub to the axle. One has to be very careful when starting the new bearing into the knuckle to keep it going straight - go very slowly. A side note: When I pulled the old bearing out I could barely feel any roughness in the bearing, but on the road it made a constant annoying harmonic hum. It is surprising how silent the Volvo is now.
I did that and the fault comes right back.
Thank you for letting me know how you pressed it back in. I hope mine never fails but if it does I will know how you did it. I only have a 12 ton press. It may or may not press it out and back in. If I cannot not do it I may show up at the dealership with part of a Volvo in my hand or just go to Harbor freight and step up my press. I probably could do the later cheaper than showing up at the dealership. Good luck with your ABS fault. I have no idea what it might be unless the ring on the new bearing is just not correct. I was perplexed by the tighten the lug nuts comments above . I did not see how that would change the outcome of your problem. One other question did you use an OEM bearing/hub assembly or an aftermarket. I still for the life of me do not understand why Volvo did away with the tried and true 32MM beefy axle nut for the wimpy 13mm bolt plus why did not go away from the bolt on hub assembly to a pressed in one. Some thing just are not "improvements".
The reason I ask you about the brand of the part is I found this about a bearing on Amazon and the attached review. The part was DTA Front Wheel Bearing & Hub Assembly DHA590234 Brand New Fits Volvo S60 S80 V60 V70 XC60 XC70 The review was "The bearing fits my 2013 Volvo XC70 BUT it was missing the magnetic ring needed for the ABS motion sensor to work. This has cause me a lot of consternation. I had to remove the ring from the old bearing and install it on this bearing. That meant I had to do the job TWICE. A BUMMER. I would NOT recommend buying from this supplier. I just hope the bearing last a while."
That is the bearing I bought and that is my review. BUT now it seems that possibility the magnetic ring I removed from my old bearing does not work properly with the new bearing or my sensor. I plan on pulling the ring off and checking the bearing to see if it will work with out the magnetic ring and just the plastic seal it came with. One mechanic tells me the bearings are magnetized on one end and maybe the installer who put the bearing on the hub put it on backwards! This seems to make sense because I had no issues with my old bearing. I'll update when I check things out.
In my first post above I questioned if the bearing was installed with the correct side facing the sensor but that was before I realized the hub was already put in at the factory. I had read where people put the bearings in backwards on Honda vehicles all the time. Pitiful if a manufacturer would do this. Sorry you are having this much trouble. I think at this point I would buy another manufacture's bearing/hub.
I am moving in that direction. I have put it off because I just do not like doing the same thing twice!
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