brake switch question
Anyone do a 4.3 swap and put a auto in and have to run the 4 pin brake switch to lock and unlock the convertor. if so can you tell or send me a pic of how you mounted to the brake pedal or how you did your setup. i used a painless wiring harness in mine.
I couldn't find a brake light switch that would work without the extra work of adding a bracket. What I did was use a relay activated by the stock brake light switch. It has been a while since I did it and will have to see how I wired it. I have the diagram from the back page of my Painless installation book and have notes telling me what color wires I used to make it work but I need to get under the dash and look before I tell you something wrong. I will take a look, scan the page and get back with you.
It will unlock the convertor when you step on the brakes and the speed sensor should keep it unlocked until 45 miles per hour or so. This is how I understood it, the diagram used a pressure type brake switch but I saw no difference in using my stock brake light switch.
If it was locked up at idle (in gear and on the brakes) it would push the Jeep forward and lug it down, and when your above 45 (if using a non-adjustable speed sensor) hit the brakes while on the gas and your RPM's will come up a few hundred.
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