I just got a A4 '93 Z28 with 135k miles on it. It seems like it's in veru good mechanical shape except for one thing I'm not sure about. The transmission has some strange stuff happening with it. He said it was rebuilt at 118k, so only 17k ago.

First is, when you go back and forth between R and D it SLAMS back and forth like something is loose and letting it slip and then engages almost immediately. Not smooth like my TA.

Second is, most of the time when you hit the gas (I did this a few times on my way back from buying it, and then seafoamed it so I got to do it some more ) it almost always goes into the gear that puts it around 3k rpm. I was going like 50 for example and hit it, and it goes into I would assume 3rd gear. I jumped to about 3k rpm and let me accelerate in that same gear all the way to 110 where I let off, and it still had more it in. It feels really slow down there at 3k, so i don't like that. It is pretty quick up high though .

Last thing. When it does get to just the right speed so that when you hit it it does into a lower gear like it should the rpm's will fly up almost to the redline (not bouncing off the rev limiter though) for like a half a second and the fall down about 500 or something to where they should be. Then it really takes off . Anyway, I don't know if that means it's slipping or what is going on. When I did that I was going slower, like say 30 I think.

One other thing I forgot to mention, during normal driving it shifts a lot firmer than my TA also.

So what do you think? I have never driven a car with the tranny that came in the '93s, only the 4L60E in my TA, so I don't know if they just behave differently, or if there really is something wrong.

Thanks for the help.

 

I'm with you that sounds strange and I too am more familiar with the 60e thenthe 60 in the 93's...

I do know the shifts are commanded by the TV cable and governer weights and those type of things just like old trannies, and those are all adjustable so you might just need to adjust them...

my buddy has a 93 and he helped a lot of guys adjust them, try to give him a call, PM me for his number...

 

If it was rebuilt, it was probably with a shift kit in it which would explain the quick/firm shifts. As for the 3rd gear thing i'm not sure if I am understanding you correctly but it could be another mod.

 

The performabuilt guys responded in my other thread and explained what could cause the R to D and D to R roughness, and the firm shifting.

The third gear thing is it just basically shifts to the wrong gear, or at least one higher than it could be going. At 50mph it could easily hit 2nd, but it goes to 3rd. That causes it to be like 3k rpm or less wen I floor it. And that kind of low rpms means no acceleration compared to what it has up top (even though the LT1 torque is down there).

It would be very nice to be able to adjust the shift points, but as of right now my throat is so swollen and hurts so bad (even after powerful pain killers, steroids for swelling, and a shot in the butt all from the doc) that I can barely talk or drink anything and basically can't eat. lol. So do you know of anything on the internet about that? How to change the shift points?

Thanks for your help guys.

 

when i got my falcon done, the TV cable was all out of wack, and you had to get to about 20 -25 mph before it would shift into second. some tweaking with it fixed that problem and its work like a charm since. what im saying is that the TV cable has a lot to do with the transmission shifing, but i really dont know about your problem or if it would be affecting it. mine is a 93 also, 700r4. they say if the cable is not adjusted right its easy to burn up the clutches, so beware

 

Ok, I'll keep that in mind.

It's definitely not right to put your foot to the floor at like 50 or so and be able to go all the way up to well over 110 in the same gear right? My TA would hit 2nd there and only make it to like 85 before third, and they have the same gearing...

 

yes its definitly in third, and mine has some trouble down shifting at about 55 mph into second, but i usually just do it manually, thats y i got a BandM megashifter Rachet shifter

 

My 93 has a 700R4 , to adjust the TV cable hold the throttle wide open (with the moter off) and push in on the square button on the side of the cable housing.

 

I am almost positive that the correct way to change the shift points is NOT by adjusting the TV cable. Yes, you can do it. But its not the 'right' way to do it.

You have to change the weights etc.. around in the trans itself.

Tony.

 

if you are talking to me, i already knew that. but my cable was misadjusted during the build and it took some time to get it to drive right, i wasnt trying to adjust the shift points per say. in a way i was but yet i wasnt. it shifts perfect under wide open throttle tho, right at 5800

 

The post was not directed towards anyone, its just general information.

Tony.

 

ok i wasnt trying to start somethin i just thought you might have been talkin to me

 

The TV cable controls part throttle shifts and the weights and springs in the govenor control WOT shifts.

 

I guess the cable is not what I need to adjust then. I need it to change what gear it shifts into when (like not into 3rd at 50-55) I go WOT. That has to be the reason my dad's CTS kept up with it on the way home. When we were going like 30 I put at least a car on him by 65.

Is the tach maybe variable a bit too? If not then it isn't shifting in the same place every time. I've only looked at it twice as it shifted, but the first time it shifted at 5400, the second time it shifted at about 5700 or 5800 like you said is right.

 

it is very likely your tach is off a little. we tested mine on a pulse computer and it was off by a couple hundred rpms at like 4000. i doubt that is your overall problem tho. when it was rebuilt, was it tampered with performance wise? or was it just rebuilt with new clutches and such? cus they could have screwed it up

 

I asked the guy that I got it from and he didn't know. His friend owned it before him (his friend is the one that had it rebuilt after trying to fix it himself and failing, lol), and he only had it for like 5k miles. When I asked him he thought that it was only rebuilt to factory spec., but he said it's possible a shift kit was put in or something since it shifts so firm. So I'm not sure.

 

lol that sounds kinda shaky. trying to fix it himself and failing? lol not good. ide say before its over with, its gonna need another rebuilding