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rear antilock idiotlight

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Old Oct 23, 2004 | 06:49 PM
  #1  
AK4Wheeler's Avatar
AK4Wheeler
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From: Eagle River, Alaska
rear antilock idiotlight

I just bought this truck and have a couple issues, this one bothers me the most.
The idiotlight stays on all the time, obviously cause theres a problem.
When I hit the brakes the rear lock up. It just snowed today so that might get interesting driving when I need my brakes.

Is there a number of things it could be or maybe one??

The previous owner told me that it happened once before and that the piston needs to be realigned....
He and I have no idea what the means. Any ideas??

Thanks
 
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Old Oct 23, 2004 | 08:35 PM
  #2  
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Take it to a shop and have the ABS codes pulled, then go from there. My guess is that it's the ABS module, but there's no way to know for sure.
 
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Old Oct 23, 2004 | 09:45 PM
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what year truck is this ? that would help. and you should be able to pull your own abs codes.
 
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Old Oct 24, 2004 | 03:59 AM
  #4  
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AK4Wheeler
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sorry,

Its a 1990 f250 4x4 with 302 manual trans.
 
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Old Oct 24, 2004 | 09:15 AM
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It's a pretty simple system and a repair manual should tell you how to pull abs codes w/o a scanner. Unequal pressure between the wheels or a bad hose acting as a 1-way valve can trigger it as well as speed sensor issues.
 
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