I just completed the T-C lockup mod today. used this guys set up, LED lights and all .

http://www.forgotton.net/mods/tclock/index.htm


works flawless cost like $20 in supplies. the coolest thing is at a stop light or sign, if you just lift your foot off the brake and start rolling, then lock the T-C it sounds SSSOOOOO sweet. almost, dare I say. like an I-6, till it gets up to about 700 rpm. then its just total pull.


I know alot of guys have done this, what are your thoughts or experiences with it, worth my after noon just to make some cool noise????


Diesel Rod

 

would this be something I would want to do if I'm taking my 01 F350 dually in the sand as I do when fishing? Although I leave it in 1st gear and let air out of the tires....learned the hard way.
What are the advantages/disadvantages to this mod?
Would the set up (PIN-6) be same for 2001?
Anybody done this to an 2001???

 

I would think that the 6 pin would be the same. I thought he had an 01, but I dont remember. Mine was totally different. wasnt a six pin, all I had to go off was that it was a purple wire with a yellow tracer.


I don't think it would help you in the sand, you prolly would spin out to fast, since thats all mine wants to do now if I lock it in first gear. or any gear really. it puts alot of the torque to the ground with it locked. do a search for the mod you should get a fair amount of results.


Diesel rod

 

Thanks Diesel! Wasn't quite sure what the mod was for except locking the T/C. Instructions were written for a 2000PSD. I will search.

 

I did it out of pure saturday afternoon boredom, I have heard that it is used to quiet down the noise converters on the new models, and as a towing accesory to the exhaust brake. I just like gadgets, and the sweet sound a low R's.


Diesel rod

 

Hey dieselrod I got a question for ya. What happens if you take off from a stop with the convertor locked and leave it locked as you drive, does it shift harshly? If you accelerate to 60 and leave it locked what does it do?

 

I did it to my truck, and use it every now and then. It works great when you have a chip, let the rpms get real low and then just step on it and let the smoke roll out!
I think it works well as an engine brake.
I haven't encountered any problems with it yet, except when I have it on the OD light starts to flash, but I always disregard that. I don't know if there are any long term negative effects, haven't heard anything yet.

 

Now THAT's what I'm talking about!! Basically it's letting you lug it in a low gear like you could a manual tranny?? SWEET??

OK - so after looking at that site - basically what you are doing is GROUNDING the purple/yellow tracer wire to lock the T/C??? Can I do it this way - without all the LED rig-a-maroll?? (I'm no electrician!)

Without cutting the purple yellow wire - scotch-lock a wire to it, and run that to a switch. Ground the switch so when I throw it - it grounds the purple/yellow wire - but when I leave it off - the PCM can still lock the T/C since I didn't cut the p/y wire??

 

Cat man i'd like to know if this works as well bc i really dont want all the fancy LED's. I really havent paid attention to the wiring diagrams and have always thought that you had to supply power to the tc lock wire to lock it. but i guess that all the pcm does is provide a ground for the convertor lock. Lets see if the guru's can answer our question.

 

I am about to disconnect the EBPV and am thinking of turning it into an exhuast brake. I was told that I had to perform this mod frist. I was wondering what this mod alone, with out using the EBPV, would do to benefit the performance of the ol ford. Was also wondering just what this sound sounds like?

 

Go to Diesel Innovations website and on the left side, click on the Tech Info button, and in the bottom half of the list it will say "Torque Converter LockUp Switch and LED Indicator". Those are some great directions to hooking it up. The LED Indicator and the switch are totally independent of each other. Right now, I'm running with just the switch, I had the LED earlier, but did some reworking on my dash and haven't put the LED back in.

I wouldn't do any cutting of the wires, I didn't anyway. I used a quick-connect splice(blue one) where I was able to connect the wire going to the switch to the purple w/yellow tracer, without any cutting, taping or anything. You can find them at about any hardware store. The directions say to tap into the wire by the plug on the tranny, but I couldn't get up to it with the heat sheild for the exhaust and the frame, so I followed the wire to the front of the cab and tapped into it there, also reducing the amount of wire I had to string out.

Powerstrokefreak- this mod is a simple engine brake, probably not quite as good as using the EBPV, but I've read that the EBPV engine braking it works best at around 2000rpm. With the T/C lock up, you can use the engine all way down until you're about to kill it, the shut the switch off.

 

Ok, i see now. Well I think I will hold off for now since there really aren't any drastic slopes around Iowa. Thanks for the info.

 

What happens when you lock it in first and drive, do you have to unlock it between shifts or can you leave it locked?

 

One thing not to do, have the T/C locked up and try to drop it in gear to go from a dead stop, you'll kill the engine, or try to come to a complete stop with it still locked up. It's just like have a clutch for a manual.
You can leave it locked up in drive, and let it shift through gears with it locked, don't know how good it is on the tranny. It'll shift really hard, the T/C really smooths out the shifts.

 

alright farmboy thanks,
I hooked the scan tool at work to my truck and watched the T/C clutch solenoid on/off function as i drove around. It will never lock it in first at any time. However if you are at about half throttle or more it will lock it about halfway through 2nd and never disengage as it shifts into 3rd and when it shifts into OD. I have a stock program in it too. It is also always engaged in OD unless its cold.