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Old 11-18-2013, 12:44 PM
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ABS Light

Hello All;
I need some help with my 2000 Ford F-250 7.3 SD. Four weeks agon I replaced th wheel hubs with sensors. All was well until last week when the ABS light came on. Put code reader on and there were no codes thrown. Checked wheels, no dragging brakes. Checked front sensors .67 and .68 ohms. Tested output by spinning wheel, Rt .56 volts, lft .started at .9 then averaged out to .6 volts. Rear was .6. Started truck, ABS light went out as normal then after 25 yards of driving came on again. Turn off engine and let sit for a few minutes, restart light goes off and stays off until drive short distane and it comes on again. It consistently does this with the light staying on during driving. I'm now baffled. Any and all help would be appreciated. Thanks in advance!
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Old 11-18-2013, 01:29 PM
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Originally Posted by GlenInIdaho View Post
Hello All;
I need some help with my 2000 Ford F-250 7.3 SD. Four weeks agon I replaced th wheel hubs with sensors. All was well until last week when the ABS light came on. Put code reader on and there were no codes thrown. Checked wheels, no dragging brakes. Checked front sensors .67 and .68 ohms. Tested output by spinning wheel, Rt .56 volts, lft .started at .9 then averaged out to .6 volts. Rear was .6. Started truck, ABS light went out as normal then after 25 yards of driving came on again. Turn off engine and let sit for a few minutes, restart light goes off and stays off until drive short distane and it comes on again. It consistently does this with the light staying on during driving. I'm now baffled. Any and all help would be appreciated. Thanks in advance!
You have to have a special diagnostic reader to get codes from the abs. Most reputable shops have it and sometimes do it for free, that will help you start somewhere
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Old 11-18-2013, 03:10 PM
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Ok, that's good to know I was beginning to doubt by scanner. I have an appointment tomorrow a.m. at a local shop to do a scan. Thank you for the help.
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Old 11-18-2013, 07:34 PM
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Originally Posted by GlenInIdaho View Post
Ok, that's good to know I was beginning to doubt by scanner. I have an appointment tomorrow a.m. at a local shop to do a scan. Thank you for the help.
Yes sir its ridiculous it cant be integrated with the pcm but yea id guess it has something.to do with your install of sensors
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Old 11-18-2013, 07:47 PM
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I suppose I should have kept the old sensors, but didn't think there might be an issue. The truck has 163 thousand miles on it so I suppose these types of issues are going to spring up. Don't quite understand why it too four weeks to show up, but we'll find out in the morning, (I HOPE!!!) Thanks again
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Old 11-19-2013, 01:39 PM
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Here's an update on the ABS Light

The rear speed sensor was bad. Even though I tested it and found it to be producing 1+ volts, apparently it wasn't functioning properly. All's well now. Thanks for the help!
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Old 11-19-2013, 02:02 PM
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good to hear.. where are you from in idaho?
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Old 11-19-2013, 03:58 PM
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Thanks. Near Boise
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Old 11-19-2013, 07:36 PM
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nice, im down in Twin.
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