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abs light only comes on on highway, after truck cools down, goes off.

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Old Mar 17, 2014 | 04:45 PM
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Default abs light only comes on on highway, after truck cools down, goes off.

Truck in my sig. Abs/brake light only comes on when I'm going on the highway for an extended period of time. VSS on trans is new and wheel speed sensor.
 
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Old Mar 17, 2014 | 05:57 PM
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I'd suspect a wiring problem with one of the speed sensors.
Your 97 doesn't have 4 wheel abs right?
 
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Old Mar 17, 2014 | 06:31 PM
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No just the rear 9.25 ring gear sensor. Its a dorman replacement. The vss on the trans is new. I do get a check engine light for code 740 for lack of torque converter lockup. Could this have to do with it? The vss gear is matched to my 4.56s and 37s.
 
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Old Mar 17, 2014 | 06:42 PM
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TCC lockup won't have anything to do with it.

ABS lite coming is usually that rear wheel speed sensor on the RWAL trucks. Dorman doesn't have a real good reputation on their electronic parts......
 
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