All of a sudden i have TCC lock in ever gear.

[caincrx]

I have a 1982 K10 with a GM good wrench 4 bolt main 350 with edelbrock 1406 carb and proformer intake and HEI distributer, all emissions stuff removed and a rebuilt 1985 700R4. I got a carb spaces and installing it would mean doing some modification. I was checking things and found the fluid was pretty dark and the TV cable was kinked and some wire were broken. So I thought I'd give it some love. Well in the process of that I found out the its really important to have the TV cable geometry right, which it wasn't. So I made the geometry correction Bracket and made a new bracket to hold the TV cable and throttle cable level and straight.and changed the fluid and filter. But after everything was done it just would shift right. I kept adjusting the TV cable but couldn't get it to shift where it should and it seemed like it would shift more then it can being a 4 speed. I'd get 4 or 5 shift spots at times. And it would bog down bad at the 2-3 shift. So after wasting a bunch of time checking and readjusting I decided to hook up a TCC light and once I did the TCC is locked up in every gear. It unlock with low vacuum and if I push the brake. But re locks up as soon. I I'm off the brake. I had to wire up the TCC so it would work about 2 years ago and I know it worked fine when I was done. I don't think it's anything I did and may have been doing this for a few months. I'm just wondering what part is bad? Is it the pressure sensor? Or the TCC it self? And isn't there a temp sensor that won't let it lock up until it gets warm? Because it's lock as soon as I start the truck now. The trans has all the stuff for the 3 wire 3rd gear lock up but I'm just running the 2 wire 4th gear only lock that my truck came with stock. Is the 3rd gear lock up worth hooking up? I've been reading post on here for 5 years and they help me fix so many issue my truck has had. But this is my first post.

 

[Ricko1966]

I have a 1982 K10 with a GM good wrench 4 bolt main 350 with edelbrock 1406 carb and proformer intake and HEI distributer, all emissions stuff removed and a rebuilt 1985 700R4. I got a carb spaces and installing it would mean doing some modification. I was checking things and found the fluid was pretty dark and the TV cable was kinked and some wire were broken. So I thought I'd give it some love. Well in the process of that I found out the its really important to have the TV cable geometry right, which it wasn't. So I made the geometry correction Bracket and made a new bracket to hold the TV cable and throttle cable level and straight.and changed the fluid and filter. But after everything was done it just would shift right. I kept adjusting the TV cable but couldn't get it to shift where it should and it seemed like it would shift more then it can being a 4 speed. I'd get 4 or 5 shift spots at times. And it would bog down bad at the 2-3 shift. So after wasting a bunch of time checking and readjusting I decided to hook up a TCC light and once I did the TCC is locked up in every gear. It unlock with low vacuum and if I push the brake. But re locks up as soon. I I'm off the brake. I had to wire up the TCC so it would work about 2 years ago and I know it worked fine when I was done. I don't think it's anything I did and may have been doing this for a few months. I'm just wondering what part is bad? Is it the pressure sensor? Or the TCC it self? And isn't there a temp sensor that won't let it lock up until it gets warm? Because it's lock as soon as I start the truck now. The trans has all the stuff for the 3 wire 3rd gear lock up but I'm just running the 2 wire 4th gear only lock that my truck came with stock. Is the 3rd gear lock up worth hooking up? I've been reading post on here for 5 years and they help me fix so many issue my truck has had. But this is my first post.

We need a dighram as to how you wired up the tcc and what solenoid you are using 1 or 2 wire.

 

[caincrx]

It's a 1985 trans and has the type 1 wiring. I can't say for sure without the pan off but when I had it off it looked like the type 1 wire diagram I found. And I have it wired up how the it would of came stock in 1982 besides the emissions stuff. I mayhave forgot to say its a 4x4 and its just 2 wire to the trans. I put a on off switch after the brake swich and it only seems to lockup in 3rd and 4th but the light i added is on in all gears so i thought it was locking up all the time. Is it just nomalfor 3rd and 4th to lockup if only running 2 wirs to the tran? If so what is the D terminal for on the 1995 trans? I thought it was for the 3rd gear lock up.

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[caincrx]

Sorry not 1995 I ment 1985 trans.