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Old 07-01-2010
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I am: Ryan C
Join Date: Apr 2007
Location: Macon Georgia
Vehicle: 00 XLT 2.5L 5spd 2wd
Posts: 348
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Manual torque converter lockup...FTW!!!

Well my a4ld has been giving me problems ever since i got my bronco, and im working on a 5spd swap, but i decided to try to make it last until i get the rest of my parts together. heres what i did

i unplugged the t/c lockup plug (right above the trans pan lip on drivers side of tranny), then i used my multimeter to figure out which wire was hot with key on(happend to be red/blue stripe on mine). once i figured out which one was hot, that told me the other was ground(yellow/blue stripe). i cut the ground wire and soldered a piece of 16awg wire on and ran it up through the speedometer cable hole to my switch. i put this wire on the positive side of my switch, then ran a ground to the ground side.

how it works, if u dont already know, is u are manual locking the t/c. what this does is, better fuel economy, lower trans temp, and it keeps the trans from feeling like its always shifting on the highway. the drawback is u have to manual flip the switch to lock/unlock the t/c. this aint rocket science, it wont let u lock the t/c under 45, about the time the tranny shifts to o/d. i like to lock it around 55, and i can give it more gas to stay at a steady speed without it unlocking and locking. also in the D position u can lock it up at 55 and it wont keep dropping down to 2nd and shifting back. once again u can give it more gas without it downshifting. its perfect in D with my 31's so i can hold a steady road speen(i can actually go 70 now lol)

just figured i would share about the manual lock up switch. i highly recommend it to all with the a4ld. my problem was alot of shifting at 55 and alot of slippage in o/d, and its gone. im still swapping to a 5spd though, but it makes driving a whole lot better

85 Bronco II, 2.8L, fm146,BW1350
4.5" lift, Duraspark'd, Holley 350cfm, 30x9.50 Wild Country Mxts, Panasonic CD player, Autometer Temp guage, Sway Bar disco's, Removable door pins, Rock lights
Comming soon: 4.56's, 33's, sliders, LED tail light boxes
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