Changed Disc now have an ABS and TC problem

[erx007]

Advice needed! I changed the readr discs and pads on my 2004 Defender this weekend, however, since changing them I now have two new problems.

1. The ABS light does not go out
2. The traction control seems to kick in over minor bumps, as if it is too sensitive.

Is there a straightforward problem I dont know about, I am new to this maintenance world. And, am I causing more damage by driving the vehicle?

All advice very welcome

[gusthedog]

Maybe you knocked the ABS sensor out of alignment when you fitted new pads? Check out

http://www.aulro.com/afvb/90-110-130-defender-county/150808-defender-abs-sensors-how-remove.html

http://www.aulro.com/afvb/90-110-130-defender-county/125456-rogue-abs-traction-control-lights.html

[Drover]

Trying gentle tapping the sensors back in the hubs with a centre punch and hammer - gentle.

TC and ABS both us the same sensors and this is likely to fix both at the same time.

Cheers

[djam1]

I found that I damaged the sensors when I used a hammer
Just use the heel of your hand and hit the screwdriver

[erx007]

By hitting the sensor am I trying to close the gap between the sensor and the teeth of the sensor plate? I assume that distance is critical and if too wide, thats where you get issues.

[gusthedog]

Also maybe check the wiring to make sure the earth has a good connection and clean the sensor too. You may have simply filled the sensor with crud.

[erx007]

SOLVED!! Thanks for all the advice. I took off the wheel to get better access and managed to push the sensor back in about 10mm and that was it! Started it up and as soon as I took off the ABS light went off, I drove up the road going over a number of bumps and potholes and test the TC and it did not incorrectly kick in! Thanks all!

[strangy]

Trying gentle tapping the sensors back in the hubs with a centre punch and hammer - gentle.



Cheers


NO!! Do not do this ever!!

This will most likely result in just stuffing an expensive sensor.

You may as well hit the ECU with a hammer and hope for the same results.

[Drover]

NO!! Do not do this ever!!

This will most likely result in just stuffing an expensive sensor.

You may as well hit the ECU with a hammer and hope for the same results.


Really, I have watch the mechanics at my local mechanics do it several times, once to my vehicle without causing any damage....

And the owner of the shop was an ex-Land Rover engineer, go figure.

You should note that the instruction was gentle, not to smash it "Der"

[strangy]

Using a " centre punch", a tool designed to penetrate & deform the work surface,most commonly metal, shouldn't surprise anyone when the sensor dies.


Originally Posted by Drover https://www.aulro.com/afvb/images/imported/2016/08/768.jpg (http://www.aulro.com/afvb/90-110-130-defender-county/151492-changed-disc-now-have-abs-tc-problem.html#post1691364)
You should note that the instruction was gentle, not to smash it "Der"
"Der"...whatever force you apply simply dictates how much penetration/deformation you get.... into the sensor.

Did you mean a "pin punch"? This would be more likely and then obviously with care.

Really don't care what other " mechanics" do. Just because a result is achieved does not make it good practice. If they are in fact using a centre punch.

But I suppose unless the person giving advice is paying the bill, they can suggest anything.

Cheers