VSC Lights/ABS & Grinding noise

[alms_lefko]

Seried of events

So, my drivers side cv boot was bad. For about a week I've heard a whomp whomp whomp noise (went away when turning wheel to the left)

Last weekend I rotated tires.

And 2 days ago I started hearing a grinding noise from the front end at low speed. I assumed it was te cv axle just really gone bad.

Changed out the cv axle with an Autozone reman.

Now my VSC lights and ABS lights are on. I tried a zero-point calibration but they went back on immediately.

From what I've searched - maybe my abs sensor wire got stretched?

My grind noise is still there (it's intermittent). The 'whomp whomp' noise is too... it's better - but still there.

 

[alms_lefko]

Tested continuity... it's fine. :/

Now I don't know what the problem is...

I did notice a LOT of play on the passenger front - so I'm guessing that wheel bearing is shot. Would this cause the ABS/VSC lights?

How hard is that to replace?

 

[NJshadow93]

Sounds like a wheel bearing all the way. If you change one you should change the other. You can get fully assembled hub bearing assemblies that are bolt on. One of the companies that sells this is bluepit bearings. As for the lights, it's possible you knocked the wheel speed sensor when changing the axle. I'd check that. Also, be careful of those sensors when changing out the bearings.

 

[alms_lefko]

Sounds like a wheel bearing all the way. If you change one you should change the other. You can get fully assembled hub bearing assemblies that are bolt on. One of the companies that sells this is bluepit bearings. As for the lights, it's possible you knocked the wheel speed sensor when changing the axle. I'd check that. Also, be careful of those sensors when changing out the bearings.

Ya, just stumbled across bluepit... looks like the easiest way to go.

Is there a way to test the actual wheel speed sensor before I shell out $200 for a new one?

 

[NJshadow93]

Ya, just stumbled across bluepit... looks like the easiest way to go.

Is there a way to test the actual wheel speed sensor before I shell out $200 for a new one?

I would at least check to make sure it's not disconnected or physically damaged.

 

[alms_lefko]

I would at least check to make sure it's not disconnected or physically damaged.

I pulled it. It had grease on it. Cleaned it off. And tested continuity of the harness which tested fine.

 

[alms_lefko]

Could the autozone axle somehow be causing the abs sensor to not read properly?

I thought the abs ring was in the hub... unless I'm mistaken

 

[sonerick]

The abs ring is located on the backside of the wheel bearing. It is a brown plastic looking thing and is stuck to the innermost (closest to the knuckle) bearing cover and can be repositioned (or so I've been told). There is no way the axle itself could be causing the abs sensor to not read properly. My guess is either you have a bad abs sensor or the abs ring on the wheel bearing is not working properly.

If you recently installed a new axle, there is a chance you damaged either the sensor or the abs ring during the install. Or if the wheel bearing is going bad, it could be causing the problem because the abs ring is out of spec. Since the sensor had grease all over it when you pulled it, I'm guessing that the bearing is just going bad. There shouldn't be any grease in the knuckle, these are sealed bearings that don't need to be packed with grease or anything like older-style wheel bearings.

To test the sensor, swap with the other side of the car and see if that triggers a different abs code. If the code follows the location of the sensor, its bad. There's really no easy test for the abs ring other than ruling out the abs sensor and the wire harness.