Cracked Tone Ring

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Old 04-13-2010, 01:35 PM
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Default Cracked Tone Ring

Hi, I have 45,000 miles on my 2008 FEH. A couple days ago, the ABS light comes on. The dealer had to replace the LF tone ring. Fortunately, I had the extended warranty so I was only out the $50 deductable. Is this a common problem?
 
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Old 04-13-2010, 03:52 PM
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Default Re: Cracked Tone Ring

What would the work have cost without the extended warranty?
 
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Old 04-13-2010, 05:19 PM
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Default Re: Cracked Tone Ring

Originally Posted by kpdandjad View Post
Hi, I have 45,000 miles on my 2008 FEH. A couple days ago, the ABS light comes on. The dealer had to replace the LF tone ring. Fortunately, I had the extended warranty so I was only out the $50 deductable. Is this a common problem?
This might be a stupid question but did the light "come on" steady and hold or did it flicker on and off?
 
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Old 04-13-2010, 06:10 PM
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Default Re: Cracked Tone Ring

The ABS light would come on after driving for about 5 minutes, it did not flicker, it stayed on till I turned the ignition off.
 
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Old 04-13-2010, 06:14 PM
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Default Re: Cracked Tone Ring

Originally Posted by econoline View Post
What would the work have cost without the extended warranty?
I didn't get an exact number, the mechanic said it would be about $200, but he said my cost would be $50 due to the extended warranty. The only part replaced was the tone ring, he showed me the cracked part.
 
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Old 04-14-2010, 09:34 AM
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Default Re: Cracked Tone Ring

Originally Posted by kpdandjad View Post
Hi, I have 45,000 miles on my 2008 FEH. A couple days ago, the ABS light comes on. The dealer had to replace the LF tone ring. Fortunately, I had the extended warranty so I was only out the $50 deductable. Is this a common problem?
OK, I'll ask. What the heck is a "tone ring"?
 
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Old 04-14-2010, 01:21 PM
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Default Re: Cracked Tone Ring

Originally Posted by stevedebi View Post
OK, I'll ask. What the heck is a "tone ring"?
It is a small disc, maybe 4" in diameter. It has teeth (like a gear) . It mounts on the axle and there is a sensor that is mounted near the teeth, which "sees" how fast each wheel is turning by counting the teeth. The ABS system gets this data from each wheel and in a braking situation it decides which how much braking each wheel will get.(This is probably a very oversimplified explaination- any experts out there are free to discredit this)
 
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Old 04-14-2010, 03:31 PM
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Default Re: Cracked Tone Ring

This is not from a FEH but it's similar to how one looks:

 
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Old 04-14-2010, 03:52 PM
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Default Re: Cracked Tone Ring

Yes, yes, yes....this *is* a common problem, and not just on an FEH. I had a 2002 gasoline Escape, & it drove my mechanic nuts (mee, too), until he found the cracked ring. It's a while positionn-sensor that feeds data to the ABS, & under the right conditions of stopping and turning, the ABS would suddenly activate and cause the brakes to suddenly apply. The ring is cast iron, & when the shaft it's installed on rusts just a bit and expands, the ring can crack...the crack is difficult to see at times, too, making good quick diagnosis difficult. Now, my mechanic checks these rings a lot, and has found them in makes other than Ford. Seems the same supplier makes them for multiple brands.

Gary
 
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Old 04-14-2010, 06:19 PM
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Default Re: Cracked Tone Ring

Originally Posted by kpdandjad View Post
I didn't get an exact number, the mechanic said it would be about $200, but he said my cost would be $50 due to the extended warranty. The only part replaced was the tone ring, he showed me the cracked part.
fordparts.com lists for a 2005

ABS rings front $37.31/ rear $45.
Sensors $70.94 to $79.78

Must be some work to replace.
 

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