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ABS light on

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Old Jul 1, 2017 | 06:15 PM
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ABS light on

Hello I have a 1993 Ford F-250 with a 7.3 non-turbo and a 5 speed manual trasmission. I just replaced my instrument cluster with a instrument cluster out of my 1993 f-250 with a turbo and a 5 speed manual transmission. And now my ABS light is on. Maybe the bulb was burnt out of my other instrument cluster and I didn't know it. Seems to be braking fine. Should I be worried about it?
 
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Old Jul 1, 2017 | 06:31 PM
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From: Thomaston
Nope. Just pull the bulb out. A lot of us just disconnect it. It was a crude rear brake only cause a lot of problems. Abs should never effect base brakes
 
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Old Jul 1, 2017 | 06:36 PM
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Originally Posted by hturner12
Nope. Just pull the bulb out. A lot of us just disconnect it. It was a crude rear brake only cause a lot of problems. Abs should never effect base brakes
How do you disconnect it pull the relay?
 
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Old Jul 1, 2017 | 06:46 PM
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From: Thomaston
The relay would work or the sensor on the rear end or the plug on the module driver side on the inside frame rail right about the firewall
 
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Old Jul 1, 2017 | 07:08 PM
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Originally Posted by hturner12
The relay would work or the sensor on the rear end or the plug on the module driver side on the inside frame rail right about the firewall
Would any one of those make the light go off? If so which one?
 
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Old Jul 1, 2017 | 07:09 PM
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From: Thomaston
No just pull the bulb or put a piece of no black tape over it if it bothers you
 
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Old Jul 1, 2017 | 07:14 PM
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There is no relay. Remove the bulb.
 
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Old Jul 1, 2017 | 07:15 PM
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From: Thomaston
I could nor remember if there was a relay or not
 
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Old Jul 1, 2017 | 07:18 PM
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Originally Posted by hturner12
The relay would work or the sensor on the rear end or the plug on the module driver side on the inside frame rail right about the firewall
Would any one of the plugs or sensor make the light go off? If so which one?
 
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Old Jul 1, 2017 | 07:23 PM
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The sensor is also the speed sensor, so that won't work. In fact, lack of a speed signal would probably force the light ON. Disconnecting the module, located behind the glove box, would turn it off. Disconnecting the valve would probably NOT turn it off.
 
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Old Jul 1, 2017 | 07:26 PM
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From: Thomaston
What year did they change the speed sensor from the transmission? Mine the Speedo is transmission and abs only on the rearend
 
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Old Jul 1, 2017 | 08:14 PM
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Originally Posted by madpogue
The sensor is also the speed sensor, so that won't work. In fact, lack of a speed signal would probably force the light ON. Disconnecting the module, located behind the glove box, would turn it off. Disconnecting the valve would probably NOT turn it off.
I will take a picture of behind my glove box and send it to you so you can tell me what to unplug. Will it effect anything else?
 
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Old Jul 1, 2017 | 08:43 PM
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Originally Posted by hturner12
What year did they change the speed sensor from the transmission? Mine the Speedo is transmission and abs only on the rearend
Here is a picture of behind the glove box. Is it the connector in the right. What else will it effect and what's it for? Thanks for the help.
 
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Old Jul 1, 2017 | 10:29 PM
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I'm not sure what to say here:
On my 88s, the rear ABS light was always on and it never had any ABS. I never cared about it anyway. No issues.

On my 93, it *does* work, the light is not on, and I do notice it working on emergency braking. I do like it - it seems to help a bit with locking up the rear wheels.

I'd try to troubleshoot before giving up on it first, because it's not exactly a *bad* thing. It may not be worth spending a lot to fix, but if it's a simple issue, fix it.
 
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Old Jul 1, 2017 | 10:49 PM
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Originally Posted by Macrobb
I'm not sure what to say here:
On my 88s, the rear ABS light was always on and it never had any ABS. I never cared about it anyway. No issues.

On my 93, it *does* work, the light is not on, and I do notice it working on emergency braking. I do like it - it seems to help a bit with locking up the rear wheels.

I'd try to troubleshoot before giving up on it first, because it's not exactly a *bad* thing. It may not be worth spending a lot to fix, but if it's a simple issue, fix it.
I will look into it. In the picture of behind the glove box is that the plug on the right the previous guy was talking about unpluging. Is so what else will it effect.
 
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