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Adjusting the Transmission cable ??? by BlueCat
Started on: 10-01-2003 01:04 PM
Replies: 26
Last post by: BlueCat on 10-08-2003 12:16 PM
BlueCat
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Report this Post10-01-2003 01:04 PM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
How do you adjust the transmission cable that is connected to the idler plate?

How do you measure where/how much to adjust it?

Sorry if the question sounds ignorant...but it is coming from someone that is plain ignorant on the subject

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$Rich$
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Report this Post10-01-2003 01:40 PM Click Here to See the Profile for $Rich$Send a Private Message to $Rich$Direct Link to This Post
on an auto there is a square pc. with a button on it,(on the tranny cable itself, near the Throttle body) have the engine off(and cool, its easier) have sombody inside the car press the gas pedal all the way to the floor, and while its floored just press the button on the tranny cable and it will adjust itself

------------------
Rich AIM one fast 2m8
WTB: 3.32 4 speed tranny

[This message has been edited by $Rich$ (edited 10-01-2003).]

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Oreif
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Report this Post10-01-2003 01:41 PM Click Here to See the Profile for OreifClick Here to visit Oreif's HomePageSend a Private Message to OreifDirect Link to This Post
Have someone floor the gas pedal and just behind the bracket where the cable mounts (not on the TB) There is a button. Push the button. The cable, if out of adjustment should "click". If it doesn't click and there is slack in the cable, release the gas pedal, push the button and pull the covered side of the TV cable away from the TB a few clicks, Then repeat the first part again.

------------------

Happiness isn't around the corner...
Happiness IS the corner.

[This message has been edited by Oreif (edited 10-01-2003).]

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BlueCat
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Report this Post10-01-2003 01:50 PM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
How hard should it be to press that button? I tried pressing it and it wouldn't budge.

What tool do you use to "press" this button?

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Oreif
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Report this Post10-01-2003 01:57 PM Click Here to See the Profile for OreifClick Here to visit Oreif's HomePageSend a Private Message to OreifDirect Link to This Post
With age they can stick, Spray some WD-40 on it and it should free up.
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Paul Prince
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Report this Post10-01-2003 02:14 PM Click Here to See the Profile for Paul PrinceSend a Private Message to Paul PrinceDirect Link to This Post
OK, let's get this straight.
The manual says to push the button, move the TV cable all the way "in" towards the battery, release button. Then rotate TB and cable will ratchet out to desired position. If you are pushing the button while rotating the TB, the cable will move too far out and cause less pressure in tranny? Oreif? am I backwards......Paul
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Oreif
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Report this Post10-01-2003 02:23 PM Click Here to See the Profile for OreifClick Here to visit Oreif's HomePageSend a Private Message to OreifDirect Link to This Post
 
quote
Originally posted by Paul Prince:

OK, let's get this straight.
The manual says to push the button, move the TV cable all the way "in" towards the battery, release button. Then rotate TB and cable will ratchet out to desired position. If you are pushing the button while rotating the TB, the cable will move too far out and cause less pressure in tranny? Oreif? am I backwards......Paul

The cable won't pull when you rotate the TB and not push the button, There is too much pressure holding the cable. There is a return spring in the trans to maintain pressure so when you do it as I posted, It sets it to the right position.
The procedure I posted above is how I was told to do it by the trans shop and it is also the same as the instructions in the TechTrans manual.

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BlueCat
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Report this Post10-02-2003 02:19 PM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
I don't have any WD40, I am away from home, I will pick some up tonight. I tried pushing it as best I could. Couldn't budge the damn thing.

Question about the procedure...

Should the button be pushed before or after the pedal is floored?

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perkidelic
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Report this Post10-03-2003 12:16 AM Click Here to See the Profile for perkidelicClick Here to visit perkidelic's HomePageSend a Private Message to perkidelicDirect Link to This Post
This is the procedure that I found in a website that specializes in TH700-R4 and TH200-4R trannies:

"...Once everything is connected correctly, the first step of the factory TV "set" procedure is accomplished by first pushing in on the TV cable housings "D" shaped cable slider release button, then pushing the cable slider towards the transmission until it stops as far into the cable housing as it will go. Release the "D" button to hold it in this preset position...

...The manual states you properly "set" the TV system by manually rotating the "carburetor linkage" to its wide open throttle position. However, as you attempt to rotate the "carburetor linkage" towards its wide open throttle position...

...You must "force" the "carburetor linkage" to its full W.O.T. position... This action has "forced" the TV cable "slider" mechanism to "ratchet" out to its correct "set" position!...

...Experience has taught us to go one step further and check to be certain the vehicles accelerator pedal will rotate the "carburetors linkage" to the wide open throttle position. 60% of the vehicles that come into our shop do not...

...As you allow the "carburetor linkage" to rotate back to its normal "idle" position, this movement also permits the TV cable's inner wire cable to "follow". This in turn permits the TV lever to rotate away from the face of the TV bushing and the TV plunger to also follow to its starting position inside the TV bushing. The TV plunger will end up partially "preloaded" in the TV bushing at an exact point which was "pre-engineered" by General Motors when the system was designed. This starting "point" is determined entirely by the distance that the wire cable was allow to return!...

You can go read the whole thing for yourself if you want http://www.tvmadeez.com/article/index.html - it has pics that show the whole procedure along with what is happening inside the tranny.

perk

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BlueCat
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Report this Post10-03-2003 10:21 AM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
I have sprayed WD40 on the button, I can't seem to get it to move. What shape is the button supposed to be? Mine is not so much a button as a point or round at the top...Is this right?

Could that be damaged?

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$Rich$
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Report this Post10-03-2003 11:14 AM Click Here to See the Profile for $Rich$Send a Private Message to $Rich$Direct Link to This Post
the button is round with a square housing, the button is located near the TB and is upside down so you probibly need to pull it out of the holder bracket its in, and rotate it for easier acess you press it in WHILE the pedal is floored
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$Rich$
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Report this Post10-03-2003 11:15 AM Click Here to See the Profile for $Rich$Send a Private Message to $Rich$Direct Link to This Post

$Rich$

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i could e-mail a pic if you'd like
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BlueCat
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Report this Post10-03-2003 11:23 AM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
Emailing me a pic would be great...chad.hunstad@wolcottgroup.com

Are you saying that I should take off the plastic around the button?

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$Rich$
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Report this Post10-03-2003 11:47 AM Click Here to See the Profile for $Rich$Send a Private Message to $Rich$Direct Link to This Post
OK, i e-mailed you a pic, its the top cable on the TB, just past the bracket thats holding it in is the button its on the UNDER side, stick your fingers arround and youllfeel it, Located ON the cable itself i didnt want to rotate mine to show you the actual button because im home alone right now and if it got out of adjustment id be scerewed cause i need the car today does this help any?
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Pyrthian
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Report this Post10-03-2003 12:10 PM Click Here to See the Profile for PyrthianSend a Private Message to PyrthianDirect Link to This Post
yeah, that button is a PITA to push in. I've used an allen wrench as lever to get the button pushed. And like Orief described above, push the button, back the cable out, then open the throttle all the way, the let go of button. That will put it into standard adjustment. Then you can move it a click or 2 either way depending on how you like the downshift.
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BlueCat
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Report this Post10-03-2003 11:29 PM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
Can you explain the adjustment you are talking about? How I like the downshift? clicks which way?
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fierobrian
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Report this Post10-04-2003 02:04 AM Click Here to See the Profile for fierobrianSend a Private Message to fierobrianDirect Link to This Post
I TRIED TO PUSH MINE AND COULDN'T MOVE IT . I USED WD-40 STILL COULDN'T .I MADE A TOOL OUT OF A COLD ROLLED STEEL ROD FROM ACE UNDER $2.00 THEN I BENT IT IN TO A HOOK AND LEFT A NICE SIZE HANDLE THEN JUST PULL UP .CAN MAKE FOR ONE FOR 86 SE V-6 FOR $3.00
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BlueCat
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Report this Post10-04-2003 11:03 AM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
Pyrthian...can you explain the "adjust it to the way I like it"

a few clicks either way?

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Dennis LaGrua
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Report this Post10-04-2003 11:21 AM Click Here to See the Profile for Dennis LaGruaSend a Private Message to Dennis LaGruaDirect Link to This Post
 
quote
Originally posted by Paul Prince:

OK, let's get this straight.
The manual says to push the button, move the TV cable all the way "in" towards the battery, release button. Then rotate TB and cable will ratchet out to desired position. If you are pushing the button while rotating the TB, the cable will move too far out and cause less pressure in tranny? Oreif? am I backwards......Paul

That is my method and it's worked for me every time. You need to depress the lever at the bottom of the cable mounting end in order to be able to PUSH the TV cable stub all the way into the bracket. Once the stub is all the way in then you self adjust by rotating the throttle body hub until the throttle opens to it's full position. You will hear the TV cable ratchet out to the correct position. Don't make the adjustment by steping on the accelerator pedal. With time these cables stretch and don't always open the throttle fully. Always rotate the throlle body open by hand when making the TV cable adjustment. This adjustment is critical to correct transmission performance and longevity.

------------------
87GT 3.4 Turbo Best 0-60 5.2 seconds
http://www.turbochargerpower.com/turbo.htm

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BlueCat
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Report this Post10-04-2003 03:04 PM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
I have adjusted the Throttle plate so that the Gas Pedal reaches WOT when on the floor. Now, when adjusting the TV cable like those of you have suggested...

I DO NOT hear any clicks...what does this mean?

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BlueCat
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Report this Post10-06-2003 04:36 PM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
bmp
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Pyrthian
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Report this Post10-06-2003 04:42 PM Click Here to See the Profile for PyrthianSend a Private Message to PyrthianDirect Link to This Post
 
quote
Originally posted by BlueCat:

Pyrthian...can you explain the "adjust it to the way I like it"

a few clicks either way?

if you want the car to downshift with a slight push of the gas pedal, or if you want it to hold the gear your in more, and gently accelerate. I dont remember which way to adjust it, but I'm thinking clicking away from the throttle body will make it more touchy towards downshifting.

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Paul Prince
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Report this Post10-07-2003 09:12 AM Click Here to See the Profile for Paul PrinceSend a Private Message to Paul PrinceDirect Link to This Post
 
quote
Originally posted by Dennis LaGrua:

That is my method and it's worked for me every time. You need to depress the lever at the bottom of the cable mounting end in order to be able to PUSH the TV cable stub all the way into the bracket. Once the stub is all the way in then you self adjust by rotating the throttle body hub until the throttle opens to it's full position. You will hear the TV cable ratchet out to the correct position. Don't make the adjustment by steping on the accelerator pedal. With time these cables stretch and don't always open the throttle fully. Always rotate the throlle body open by hand when making the TV cable adjustment. This adjustment is critical to correct transmission performance and longevity.

I agree with Dennis. If the TV cable is too far out it will cause an internal leak and the first thing to go will be 3rd gear (slipping).
Th solution to the problem is to buy a new TV cable and procede as Dennis outlined.
The old cable is prolly just siezed because of countless heat cycles.
I can only relate my experience, holding the tab while rotating the TB will cause the cable to extend too far, in about 2 weeks 3rd gear will slip........Paul

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BlueCat
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Report this Post10-07-2003 10:50 AM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
I used the "floor the gas pedal, push the button technique" and I have tried to push the cable back away from the TB while pushing the button and I can't seem to get the cable to move back toward the Transmission. Any tips?

Also, what about the other cable? I believe it actually shifts the gears? Should I make sure that is adjusted properly?

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BlueCat
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Report this Post10-08-2003 09:22 AM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
Got IT !!!

The cable/shaft finally moved! I just need to adjust it a little.

I do have a QUESTION...What problems would you run into if the Tranny is adjusted improperly to shift too early?

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Pyrthian
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Report this Post10-08-2003 10:55 AM Click Here to See the Profile for PyrthianSend a Private Message to PyrthianDirect Link to This Post
like paul said, you lose third gear first. this happened on my chevy truck. It'll shift into third to early, and not apply enough pressure to the clutchs & wear them right out. I busted the TV cable while working on throttle body, didnt notice, seemed to drive fine, and 2 weeks later, no more third.
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BlueCat
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Report this Post10-08-2003 12:16 PM Click Here to See the Profile for BlueCatSend a Private Message to BlueCatDirect Link to This Post
So is it better for the car to shift too late than too early?

Do you know where the 4 cyl Fiero engine should shift?

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