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ABS activating when you come to a slow stop.

Tiny
ED1313
  • MEMBER
  • 2002 FORD EXPLORER
  • 175,000 MILES
ABS started activating at a slow stop after I replaced the front right bearings. Now I have changed all 3 ABS sensors and the front right brake caliper. I checked fuses and all. What else can I try?
Saturday, November 2nd, 2013 AT 3:37 PM

13 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Does the abs light come on?You might need a scan tool that can read live abs data to see what's going on.
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Saturday, November 2nd, 2013 AT 3:49 PM
Tiny
ED1313
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No ABS light comes on.
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Saturday, November 2nd, 2013 AT 4:41 PM
Tiny
SATURNTECH9
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Your going to have to use a scan tool to watch the speed sensors to see what's happening when the abs kicks in.
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Saturday, November 2nd, 2013 AT 6:37 PM
Tiny
ED1313
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Will I get a message when this happens while scan tool is plugged in?
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Saturday, November 2nd, 2013 AT 8:26 PM
Tiny
SATURNTECH9
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No you will need a advanced scan tool that can reach live about data and watch the speed sensors while someone drive and see if one of the speed sensors reads different then the rest when the abs kicks in when it shouldnt.
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Saturday, November 2nd, 2013 AT 11:20 PM
Tiny
ED1313
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But if they are all new sensors I put on what else could it be? I was thinking I may have did something to the rotor when replaceing the bearings?
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Sunday, November 3rd, 2013 AT 7:14 AM
Tiny
SATURNTECH9
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You still have rust etc that can effect the speed sensors if you can see if the speed sensors are even a problem and which sensor is having the issue. Otherwise who knows whats going on otherwise?Without a professional scan tool its all luck and guessing.
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Sunday, November 3rd, 2013 AT 8:12 AM
Tiny
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I changed the rotor and it fixed the problem.
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Wednesday, November 6th, 2013 AT 6:57 PM
Tiny
SATURNTECH9
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So what was wrong with the rotor?
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+1
Wednesday, November 6th, 2013 AT 9:23 PM
Tiny
ED1313
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Have no clue the rotor looks fine. But that took care of the problem.
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Saturday, November 9th, 2013 AT 11:22 AM
Tiny
SATURNTECH9
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What made you suspect the rotor?Was it the front or rear rotor?
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Saturday, November 9th, 2013 AT 2:17 PM
Tiny
ED1313
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It was front passenger rotor. That was the side I replaced the bearings in cause its a 2wd so the bearings are in the rotor. That was the only thing I had left to try to replace lol. I replaced all sensors, front brakes, passenger side brake caliper, and then the rotor which was the ticket so just glad I fixed it.
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Saturday, November 9th, 2013 AT 3:03 PM
Tiny
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At least you got it glad to hear it.
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Saturday, November 9th, 2013 AT 3:19 PM

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