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torque lock switch

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Old Oct 26, 2006 | 11:43 AM
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From: Powell River
Question torque lock switch

How hard is it to wire in a torque lock switch? Do I just have to ground out that little plug on the side of the transmission. And if so how hard is it?
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Old Oct 26, 2006 | 06:10 PM
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It's super easy, but it will destroy the stock trans quick. There is not enough line pressures to keep from slipping the TC clutch without some mods. You really need a good aftermarket converter and valve body to be able to utilize this switch, and at that point you'll find you don't really need it either.

The mod requires a resistor, switch, 10ft of wire, and about an hour of time total (this is at most)

If you want to fry your stock TC, I'll tell you how to do it, but I don't have the info at hand right now, I'll get it and post back if you still want it. I'm not trying to sound like a jerk, just want you to know the risk of adding this to a stock trans.

George
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Old Oct 26, 2006 | 06:26 PM
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From: michigan
All you need is a switch and some wire. I dont know why you would use a resistor. Under the hood on your passenger side there is a connector for your computer. There is an orange wire with a black tracer (pin 54 or 56).
Tap into that wire and run that to one side of your switch run the other side of the switch to a ground. When the switch is activated the tc will lock up when second gear hits. THE TRANNY WILL NOT DOWN SHIFT UNTIL THE SWITCH IS TURNED OFF.

I love mine

Like gstanfield said it will tare up a stock tranny.
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Old Oct 26, 2006 | 06:49 PM
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From: Montana
Here's good instructions
http://www.tstproducts.com/Torque%20...p%20Switch.pdf
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Old Oct 26, 2006 | 07:10 PM
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From: michigan
Originally Posted by infidel
I dont think that will work for his tranny
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Old Oct 26, 2006 | 07:11 PM
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From: michigan
sorry

I stand corrected go to page two
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Old Oct 26, 2006 | 08:58 PM
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Installing the resistor will enable you to shift all you want with it locked. Up down sideways, whatever It is giving the computer a signal of something (I don't know what for sure) and fooling it into locking it up while still allowing you to shift as needed. I think it is a 33ohm resistor, not sure, but I do have the radio shack part # here somewhere.

George
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Old Oct 26, 2006 | 09:00 PM
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I should add that my truck will shift while locked, and I'm assuming it is due to this resistor

George
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Old Oct 27, 2006 | 10:21 AM
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From: Montana
I'm sorry George but what you say makes absolutely no sense.
The lock up system was designed for a signal straight to ground. Although with a resistor, especially a 33 ohm one, it still will work there is no benefit at all from a resistor.
It's almost like introducing a bad connection into the system.
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Old Oct 27, 2006 | 01:52 PM
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From: Saskatoon, Sk, Canada
Somebody set me straight here. I've heard that your trans won't downshift once you've activated the switch even after turning it off until you come to a complete stop. Is this true? If so, has anybody tried to trick the PCM into thinking you've stopped by putting a momentary disconnect in the wires from the VSS?
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Old Oct 27, 2006 | 02:56 PM
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From: Belvidere, NJ
Originally Posted by berner
Somebody set me straight here. I've heard that your trans won't downshift once you've activated the switch even after turning it off until you come to a complete stop. Is this true? If so, has anybody tried to trick the PCM into thinking you've stopped by putting a momentary disconnect in the wires from the VSS?
You have a 47RE and I cannot vouch for that one, but on 47RH's with a stock valve body the trans will lock and shift up through providing the shifter is in drive in 2nd, 3rd and 4th. The trans will downshift between 2nd and 3rd with the converter locked if the need arises, however, once its in 4th it will not downshift unless the converter is unlocked.

No need to stop, just turn the lockup switch off.
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Old Oct 27, 2006 | 05:35 PM
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Originally Posted by infidel
I'm sorry George but what you say makes absolutely no sense.
The lock up system was designed for a signal straight to ground. Although with a resistor, especially a 33 ohm one, it still will work there is no benefit at all from a resistor.
It's almost like introducing a bad connection into the system.
Whatever works for you. I hooked it up according to the instructions in my VB kit. IT specified the resistor via Radio shack part #, and I'm telling you I can shift up or down with the TC locked, tried it today just to make sure I wasn't dreaming. If this don't work, maybe my truck is just special or something.

I wondered about it when I read the directions, but I followed them and they worked (just so you know I worked as an electrical engineer / Heavy truck electrician for 6 years, I know eletrical and I understand your comment about creating a "bad connection" ) I'm not trying to start crap, just telling you this was per my directions and it works perfect.

George
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Old Oct 27, 2006 | 06:32 PM
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Here's more confusion for the pot. I read the instructions above, and they aren't even close to what mine were. My instructions did not require a jumper for the hot wire. Mine just required the switch to ground via resistor.

I'm really not trying to be contrary here, and I'll even shoot a video of me running my truck through the gears up and down with it locked for those who think I'm looney.

George
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Old Oct 28, 2006 | 12:48 PM
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From: Powell River
Thanks for all the advice, I'll probably wait until I have the new TC and VB before I install it, hopefully by Christmas!
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