700 r4 - lockup for free

Free lock up on late model 700r4

[@ghoff510]

Just did this on my 89 700r4. I wired in a switch and it worked great. Thanks!

[@CVcustoms]

Glad it helped

[@zackmorgan8135]

Will this work on my 1988 700r4?

[@zackmorgan8135]

@@CVcustoms will this work on my 1988 700r4? I have a spot by the servo to screw in a pressure switch

[@theguy9234]

Nice simple video. I've only seen ONE other video with this same info. But guy talked about rewiring 4th gear switch also.

[@malik9023]

Awesome video man! I always wondered how the lockup works and what that pigtail even did.

[@thedobermangang3503]

VERY GOOD VIDEO MY BROTHER

[@williamconwell2313]

Good info, I will try it

[@bigblockmonte54]

Just to be sure do I connect this to a toggle switch and turn it on as needed ? Like highway speeds or whenever in overdrive

[@savagebullrider4648]

Dang that looks clean

[@jcanfixall1585]

HEADS UP, ANYONE WATCHING THIS VIDEO THERE'S A LOT MORE TO THIS THAN 12 VOLTS TO YOUR LOCK UP TORQUE CONVERTER...
THERE IS NO COMPUTERS FOR 700R4, IT'S A VACUUM OVER ELECTRIC SWITCH THAT LOCKS AND UNLOCKS TORQUE CONVERTER...

[@jcanfixall1585]

ALSO TH350C, 2004R, AND 700R4 USE SAME TYPE OF SWITCH...
THERES ALSO A CABLE THAT CONNECTS TO YOUR THROTTLE LINKAGE, IF THESE ARE NOT DONE CORRECTLY YOU WILL BURN OUT YOUR TRANNY...

[@CVcustoms]

You are correct. This video was to be short and sweet only explaining the wiring as it was one of my first video's. I should have mentioned not to get ride of the detent cable and vacuum line.

[@jcanfixall1585]

@@CVcustoms there's a lot of less knowledgeable people looking for information, you should edit video and tell people there's more to it or make a longer video...
People won't understand when they try to stop and tcc stays locked up...

[@nogoogle6349]

@Jcanfixall Maybe you can make a video or post a link to a video that displays your point of view with each step.

[@jcanfixall1585]

@@nogoogle6349 do some research, when I started working on cars I had to go to the library, sometimes a few to find information...
Now there's Google, if I had Google when I was younger I would be a Billionaire!!!

[@mussabakram5875]

How can i test the solenoid i did same as you said but how do i check if it works or not? Please help

[@OzielGonzalez]

I connected that way but in third gear, 40 mph, my truck it starts shaking when i step on the gas pedal. What could be the problem?

[@countrylivingguy5172]

I have a 66 c10 that I put a 700r4 and a 305 v8 out of 83 model Chevy truck.Will this work on a 83 700r4 or will I need to do something different? Thanks.

[@CVcustoms]

Yes it will

[@kristinb7450]

Nice 💯💯💯💯💯❗️❗️

[@dronedbr]

Just to be clear, I have a 200R4 (1984 date) transmission that is behind a 305 engine that will not be computer controlled. Same procedure (switched source wire, splice other 2 together)? I have seen other videos where the pan is dropped and additional parts are added.

[@CVcustoms]

Early models do require more work i will do a video on that soon but check your bossing for external pressure switch to be sure

[@mandrell13]

Do you ground the two wires that are twisted together or just put a but on them and leave them?

[@NANDIT1000]

Hola quiero saber cómo conectar los cables podrían indicarme...cual va a tierra y cual va a positivo con un diagrama...gracias

[@thedobermangang3503]

GOT A QUESTION FOR YOU FROM WATCHING YOUR VIDEO WITH OUT THE COMPUTER HOW WOULD IT NO WHEN TO ENGAGE AND TO CUT OFF

[@frigglebiscuit7484]

its got a 4th gear pressure switch that grounds when in 4th gear. if you have the switch on, it will go into lock up. if its off, it wont. when you downshift from 4th gear, the 4th gear switch is no longer pressurized, so it unlocks the torque converter.

[@MunchinMaQuchy]

Does this work on all cars that used too be tpi? Cause i got a 87 camaro i carb swaped. I did this and it only locks up in 2-3 and not 4th. It has pressure ports in the side. Think id need a 1 wire solenoid too make it work?

[@oldschool337]

So will it engage and disengage when it downshift. Have 92 700r4.

[@sportsmansparadice42]

So should I have +12v to a toggle switch or should it have +12v at all times?

[@MrMustangred]

Connect to ignition switch, key on, has power, key off, no power.

[@MrMustangred]

Hook to ignition switch wire. Switched power.

[@oldchevy5512]

So it would be in full lock up 24/7 till vehicle is turned off ? Or should it be wired to brake switch

[@AlanRivera1092]

Does it matter which pressure switch is internal cause I believe some are 1 or 2 pin

[@terrystout2702]

How. Do have wiring in pan

[@thedobermangang3503]

hey got a question for you i have 1990 k5 blazer 700r4 trans.I THINK IT IS A 4L60.i just rebuild my engine and did lot of up grades i converted it over from tbi to carb so i no with out my computer i wont have no converter lock up ..so what u suggest would be the right converter lockup kit to buy i dont want to drive my truck with out it ..i no my trans may it hot with out it..let me know thanks..appreciate it..

[@frigglebiscuit7484]

just do what he shows in this vid. his trans is a late model 700r4/4l60(non e)

[@newergonnausethis]

I have a late model 700r4 by the serial# (-1988)on the case. But I still have the pressure ports. Will this still work?

[@chipburgess6005]

Any reason this wouldn’t work??? Just being cautious. Thanks

[@Rob_Diamond]

Does this work for older (1985) 700r4 transmissions as well?

[@tonyespinoza4656]

The same set up work for the .
4l60 non E ?
Transmission its a 91 Model

[@CVcustoms]

Sorry for the later response I was on an archaeological dig no phone service but to answer your question the 4l60 non E is a 700r4 it was just renamed yes

[@Chubbychonos]

Thank you

[@stihltheman]

what if I have a big cam with 12in vac at idle? does that metter?

[@CVcustoms]

You may need an in line restritor or orficetube

[@tomkelly3896]

Can i do this to lock up in 3rd gear? 🤔 thx

[@boxboy50]

What is switched power?

[@CVcustoms]

That means the wire only has 12 volts when the key is switched to the on position

[@boxboy50]

So wire to ignition wire?

[@CVcustoms]

that will work

[@Foundmylsswap]

what exactly are the other two wires?

[@grabacr1251]

What an 84 700r4 ?

[@MrMustangred]

No.

[@WowReallyPaul]

Read through the comments a little but maybe I’m dumb, wouldn’t this lockup the converter all the time the ignition key is turned on?

[@panchoveliz1098]

Run it to a powered switch and turn on as needed.

[@allenpoulter3371]

What happens if the 2 wires connected ground out? Does it damage anything?

[@frigglebiscuit7484]

i think they are the ground.

[@darnellowenby7904]

Can i Do the same on a late model Turbo 350 with a lockup converter?

[@victorvillarreal1669]

Will this work on a 1994 TH7004r?

[@CVcustoms]

Yes

[@victorvillarreal1669]

So without doing anything, it bolts on will it still work as in will it still drive even without the "computer" (harness) ?

[@trischarchuleta9865]

Will that also work with a 200r4

[@CVcustoms]

Yes but the wiring on the pigtail would need to be checked

[@BIGEVILCHEVELLE]

The company that built my 2004R has me using this set up with a toggle switch. I’m finding that it is either slow or unable to come out of lock up. I’m running a 383 with aggressive cam
Any ideas?

[@CVcustoms]

the lock up solenoid may need to be replaced with a solenoid that has a heavier spring

[@Wbroach24]

Also I'd check your TV cable adjustment that causes some issues also if it's to far out of adjustment it can eventually murder your transmission I'm planning on using a toggle on my 200 4R my MC is just now getting to where I'll be able to drive it finally after 2 frigging years 😆

[@billbertino6180]

Do you know if this will stop my engine from stalling when put in gear engine stalls when going into drive or reverse

[@brianpuryear7532]

Mines is doing the same thing. Let me know if you find out anything

[@thedobermangang3503]

hey 1990 k5 blazer with the 700r4 i converted from tbi to carb so i dont have the computer for lock up anymore...so i hook a toggle switch up with the 3 wires from my pig tail plug do i leave my switch on at all times or will i mess up something if i dont shut it off when im at a low soeed...i appreciate your feedback.....

[@Ninostrucksales]

Did you find the answer to this question? I did the same swap and would love any feedback

[@frigglebiscuit7484]

12v ign power to one side of switch, 12v out other side of switch to the 12 wire on the 700r4, then connect the two he said to. normally open switch will have the lockup off until you want it on and flip the switch. if you are slowing down, turn off the lockup or your car is gonna shudder and shake like a manual at low speed in gear.

[@jonnysanchez6505]

Would it be the same for a 1993 with the five pin pigtail?

[@chevrosmith]

No the 93 was considered a 4l60 by 93 the tcc lock up circuit is different! As is mentioned by tci in there 700r4/2004r lock up kit instructions manual.

[@Mobigga]

SO would not having this connected stall your motor?

[@AustinHarmon1994]

No it wouldn’t

[@smartfeller1495]

So what exactly does it do when you flip the switch to on??

[@jostrander71]

Locks up the converter so it's direct drive and not slipping.

[@raul5394]

Woks in a 92 700r4?

[@CVcustoms]

yes

[@jedclampett6466]

I have the transmission out. Can jumper around the temp switch in the valve body?

[@brandonsizemore9211]

So wire it to a switch and then to 12volts?

[@CVcustoms]

to ignition power

[@smartfeller1495]

@@CVcustoms And then what happens when you turn the switch on does that make it lock up the torque converter no matter what gear you're in?? Do I have to have the switch off to start?

[@nogoogle6349]

@@smartfeller1495 Did you figure it out?

[@camaroboi13]

@@nogoogle6349if you put it on your ignition switch it locks up all gears. This is good on a lighter car, but a heavier car it can cause low idle and stalling in first gear. I used a momentary switch on my shifter so it only makes contact when I put it in overdrive. You can also wire it to a brake switch so that when you press the brakes the lockup turns off.

[@TvzzR2]

Will this delete the tv cable ?

[@MrJose123704]

No

[@Wbroach24]

^^^ what he said lol make sure your TV cable is adjusted correctly too, it can murder parts if to far out of adjustment for to long.

[@MrMustangred]

No