TV Valve/Cable Problem

[bishir]

Ok, it not appears my TV cable isn't the problem as I had previously thought, but perhaps the valve in the transmission? Is this a replacement type deal like the TCC Solenoid? I can completely remove the TV cable and it still shifts and performs under light acceleration as if I were under hard acceleration. There was one time when I seemed to be in proper adjustment, but it wasn't on the indents and under WOT it shifted out of position. Almost seems like the valve is sticking...

When I pull the cable when it's removed there is little to no tension until the 3/4 throttle position. This is also coinciding with a nonoperational converter lockup. Since I"m going to have to pull the pan and look at that solenoid anyways, what should I look for on the TV valve?

Thanks as always,

James

 

[chris718]

tv valve stuck inboard.easy fix without removing vbody usually.do you have my 200 page 2004r manual?

 

[bishir]

tv valve stuck inboard.easy fix without removing vbody usually.do you have my 200 page 2004r manual?

No I don't have the manual, how do I get it or read a desciption on how to unstick the valve? I'm going to drop the pan anyways soon just to check things over.

 

[bishir]

Ok pulling the pan in the morning. Anyone want to give me a rundown on what I should be looking for? I"m going to replace the TCC Selenoid and 4th gear shift valve while I'm in there and look for a stuck TV valve. I heard I should look for a missing govenor spring too, but I"m not sure I"ll know where to find it...

 

[yullose]

I too am curious how the TV valve comes out... if the VB needs to be dropped, or if it will slide out the front. I have a feeling I'm dealing with the exact same problem...
No TV cable adjustment will effect my shift points...
The 1-2 upshift happens around 2900rpm under light throttle. No 1-2 upshift at all during WOT.

I already had the pan down and inspected the governor. Spring is still intact.

The trans did appear to have been recently opened, so maybe a piece of gasket material got lodged in the VB...

 

[bishir]

I too am curious how the TV valve comes out... if the VB needs to be dropped, or if it will slide out the front. I have a feeling I'm dealing with the exact same problem...
No TV cable adjustment will effect my shift points...
The 1-2 upshift happens around 2900rpm under light throttle. No 1-2 upshift at all during WOT.

I already had the pan down and inspected the governor. Spring is still intact.

The trans did appear to have been recently opened, so maybe a piece of gasket material got lodged in the VB...

Hey, keep me updated and I will you too. I haven't touched the car yet, too many chores around the house.

 

[yullose]

I ordered a TCI full manual valve body for mine... thinking the problem I had was in the VB. Just installed it yesterday.


I was wrong.

The shifts I was feeling were actually 1st to 3rd. 2nd gear isn't there at all.
The manual valve body just confirmed it.

Looking at the band eyelet, I could see torn metal where the lug/pin engages under the valvebody... So I'm pretty sure mine needs a band at least.

I'm not playing games with the mickey-mouse 200R4 anymore. I'm having a full competition/transbrak'd TH400 built for the car right now. It will be the last time I need to crawl underneath the car for a tranny problem.

I'll still fix the 200R4 since I've already got $275 into a valve body... I'll just put on the boards for sale or keep it as a spare.

 

[bishir]

I have the pan off and the fluid is nice and clean (looks new) and I don't see any debris. I haven't removed the valve body as of yet, but I push the what appears to be the TV valve and it moves in and out. the cable looks as if it doesn't more the arm to push the valve until close to WOT which I assume is correct.

I am going to replace the TCC selenoid and 4th gear switch while I'm at it.

 

[77 cruiser]

I wouldn't remove the VB yet. The TV plunger is what you see sticking out of the VB, it should have about an inch of travel. you can push it in about 1/2 way pretty easy then it will get stiffer the last 1/2 inch.

It sounds like the TV itself might be stuck that's what you are pushing on that first 1/2 in. There's a small spring behind that about the size in a ballpoint pen, that's the first 1/2. Or it could be broken too.

Anyway you can take it all out by just taking off the linkage you see there & pulling out the roll pin that sticks out about a 1/4 in. just pull it out with pliers.

Just be aware of the orientation of the linkage a spring & TV lifter a little bent rod.

BTW if I botched this hopefully someone else will chime in & straighten my ARS out!!

 

[bishir]

I wouldn't remove the VB yet. The TV plunger is what you see sticking out of the VB, it should have about an inch of travel. you can push it in about 1/2 way pretty easy then it will get stiffer the last 1/2 inch.

It sounds like the TV itself might be stuck that's what you are pushing on that first 1/2 in. There's a small spring behind that about the size in a ballpoint pen, that's the first 1/2. Or it could be broken too.

Anyway you can take it all out by just taking off the linkage you see there & pulling out the roll pin that sticks out about a 1/4 in. just pull it out with pliers.

Just be aware of the orientation of the linkage a spring & TV lifter a little bent rod.

BTW if I botched this hopefully someone else will chime in & straighten my ARS out!!

Thanks for the reply... I'm working and typing right now. I took some pictures http://www.gulfcoastmuscle.org/bishir/picsandvids/Transmission/

Notice what appears to be a chewed up washer. Part of that could be in the VB I'd assume messing things up? If so, how do I check the VB as a newbie?

I did see the spring like a pen spring and it appears to be fine as well as the TV plunger. It's in the picture, though not a very good one..

 

[77 cruiser]

The spring I'm reffering to is in the pic, but their looks to be a lot of metal in the pan, also looks like that might be part of a thrust washer.

 

[bison]

Theres to much material in that pan. I wouldnt put it back together knowing something is wrong. Its hard to tell what the metal in your hand is but it cant be good.

 

[Nordbert]

That piece of washer looks pretty small. Possibly a washer from a planetary?? Is it metal or plastic? Is the TV cable unhooked from the throttle
body in 01907.JPG? BTW, when the TV cable is adjusted properly the TV
lever should contact the face of the TV bushing at full throttle. When the throttle is released, the plunger should follow the lever until the throttle is fully closed. There should not be a noticeable gap between the lever and
the end of the TV plunger when the throttle is closed.

 

[yullose]

Yeah... LOL. Finding dirt or clutch material stuck to the magnet is one thing.... But finding parts laying in the pan is a whole 'nuther ballgame.

Save yourself further aggrevation. Bolt the pan back on and drop the tranny.
It's broken. :wink:

 

[bishir]

That piece of washer looks pretty small. Possibly a washer from a planetary?? Is it metal or plastic? Is the TV cable unhooked from the throttle
body in 01907.JPG? BTW, when the TV cable is adjusted properly the TV
lever should contact the face of the TV bushing at full throttle. When the throttle is released, the plunger should follow the lever until the throttle is fully closed. There should not be a noticeable gap between the lever and
the end of the TV plunger when the throttle is closed.

Thanks for the TV information. Yes, the cable is unhooked from the throttlebody. The washer appears to be copper. I'm in the first stage of loss which is denial right now. So I'm considering buying a TCI valve body and seeing if the transmission will shift. Even if it starts to self destruct I"m looking at buying a built transmission anyways since my goal is high 10s.

 

[cutlasskid]

the only problem with that is if the planet gear let go you will have to tow the car home and the trans will pretty much be junk (not a good rebuildable core) but good luck with the shifting problem