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Electrical... Talk & Q&A! Electrical Q&A.. The shocking truth, tips, tricks & more!

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Old 03-14-2019, 02:17 PM
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Default What is the black box on my s10.

I'm putting a v8 in a 91 s10. Engine has mechaical fuel pump and a carb so I don't need the ECM, I think. 700r4 has manual control for converter lockup. My question is the black box next to the master cylinder, what does it do? Can I eliminate it like the ECM??..
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Old 03-14-2019, 05:33 PM
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Quote:
Originally Posted by fuzz View Post
700r4 has manual control for converter lockup.
Do you mean it has a manual switch you switch on the fly?

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Old 03-14-2019, 06:16 PM
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Do you mean it has a manual switch you switch on the fly?

BoB
It has an internal pressure activated switch that will lock up the converter on the fly. No computer needed..
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Old 03-14-2019, 06:22 PM
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The black box is a control module for rear ABS.

You should be able to eliminate and bypass the ABS, like this guy plans for his C series...

https://www.youtube.com/watch?v=yjOwCllSP7o

Your S10 layout will be different, but plumbed in the same fashion.

Edit: Here's a '94 MC flipped upside down... yours should be alike.... after the prop valve, go straight to your rear line... fling the solenoid valve and black box into the nearest deep body of water...





.
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Last edited by Dr Crankenstein; 03-14-2019 at 06:58 PM.
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Old 03-14-2019, 06:54 PM
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Thank you Dr.. Video was very informative. My ABS valve is mounted in a different location than the one in the video but the brake lines run the same so I will eliminate the valve and the control box.. Been worrying about that thing for a week...
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Old 03-14-2019, 07:05 PM
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My pleasure, fuzz.

Check my post again, I added a photo and description...



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Old 03-15-2019, 08:32 AM
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Quote:
Originally Posted by Tripper View Post
Do you mean it has a manual switch you switch on the fly?

BoB
Tripper..here's a link to the kit I installed. https://www.ebay.com/itm/700-R4-4L60...kqAPZNf-oY73eQ
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