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3rd shift

Posted By: Wedgeman

3rd shift - 04/30/10 02:27 AM

Got my trans back from the shop..

But it won't shift into 3rd gear !!

What could be ??

It's a A-999 trans 1987

Dan
Posted By: RapidRobert

Re: 3rd shift - 04/30/10 04:48 AM

KD linkage is correct?
Posted By: Kern Dog

Re: 3rd shift - 04/30/10 05:21 AM

I've had a few automatics over the years that took awhile to shift into 3rd gear. The 904 in my 67 Dart shifts great, but when it is cold and warming up, it takes longer to upshift and the road speed is higher. Once it is up to temp, it shifts normally.
Posted By: Wedgeman

Re: 3rd shift - 04/30/10 12:50 PM

I double checked the linkage and after hours of driving it still doesn't shift..

Dan
Posted By: Andrewh

Re: 3rd shift - 04/30/10 01:51 PM

could the shifter linkage be off?
did you see if you have another space to move it, like between neutral and drive?
Posted By: rbstroker

Re: 3rd shift - 04/30/10 03:00 PM

I have the same issue with a fresh 1965 727. It takes forever to shift into 3rd when cold. Once up to 30mph or so, I can shift to neutral and back to drive and it goes right into 3rd. The problem is not as bad when the trans warms up. Had the pan off to assure that the shift linkage was perfectly adjusted and the kickdown is a new Bouchillon adjusted properly. I am leaning toward a valve body issue.
Posted By: Wedgeman

Re: 3rd shift - 04/30/10 03:50 PM

Quote:

could the shifter linkage be off?
did you see if you have another space to move it, like between neutral and drive?



Andrew.......please !!!!!!!! loll
Posted By: Dodgem

Re: 3rd shift - 04/30/10 03:59 PM

So it has 1st 2nd then stays in second no matter where the shifter???

Could be valve body I once but a ball in the wrong spot and it had 1st 2nd and still second but that was a manual VB>


Posted By: Wedgeman

Re: 3rd shift - 04/30/10 05:20 PM

Exactly....stays in 2nd no matter what
Posted By: Andrewh

Re: 3rd shift - 04/30/10 05:31 PM

Quote:

Quote:

could the shifter linkage be off?
did you see if you have another space to move it, like between neutral and drive?



Andrew.......please !!!!!!!! loll



No seriously, if your shifter is off, you could be in 2nd not D. So you never go into third.
Now if it goes into third after it is warmed up, then I don't know what I am talking about.
Posted By: John_Kunkel

Re: 3rd shift - 04/30/10 05:39 PM


First thing to do is disconnect the throttle pressure linkage at the transmission lever and allow the lever to go full forward, if it will shift to 3rd with the linkage off the linkage is the problem. If it still won't shift the problem is internal.
Posted By: Wedgeman

Re: 3rd shift - 04/30/10 06:32 PM

Ok I will try that John
Posted By: Wedgeman

Re: 3rd shift - 04/30/10 11:44 PM

No difference John........eve shifts to 2nd earlier.....

Dan
Posted By: Sixpak

Re: 3rd shift - 04/30/10 11:46 PM

Drop the pan and make sure the valve body bolts are tight. Then check the band adjustment while you are in there...
Posted By: John_Kunkel

Re: 3rd shift - 05/01/10 08:32 PM


As mentioned earlier, if the large check ball is left out of the valve body there will be no 2-3 shift.
Posted By: Wedgeman

Re: 3rd shift - 05/01/10 09:26 PM

Where can I get a diagram of the body and location of the famous checkball ??

Dan
Posted By: Dodgem

Re: 3rd shift - 05/02/10 06:49 AM

this shows the big ball in a manual but I think there are less balls in a auto VB but the big ball goes the same place.

Attached picture 5959107-17998_upper_balls.gif
Posted By: Dodgem

Re: 3rd shift - 05/02/10 06:50 AM

another

Attached picture 5959109-17998_17999_valves.gif
Posted By: Dodgem

Re: 3rd shift - 05/02/10 06:51 AM

lower.

Attached picture 5959110-17998_17999_lower_ba.gif
Posted By: Wedgeman

Re: 3rd shift - 05/02/10 03:13 PM

Quote:

So it has 1st 2nd then stays in second no matter where the shifter???

Could be valve body I once but a ball in the wrong spot and it had 1st 2nd and still second but that was a manual VB>

I got the sportsman Valve body from SMR transmissions, it is a muanual vb with full automatic is left in drive




Posted By: Wedgeman

Re: 3rd shift - 05/02/10 09:58 PM

In this case wich ball would be missing ?

Dan
Posted By: John_Kunkel

Re: 3rd shift - 05/02/10 11:32 PM

The large ball is in location #6 in the pic below, of the balls that sit in bathtub shaped pockets in the casting, #6 is in the only large bathtub.

Attached picture 5960320-Checkballs.jpg
Posted By: Wedgeman

Re: 3rd shift - 05/03/10 04:57 AM

Got it !!
Thanks JoHn
Posted By: Wedgeman

Re: 3rd shift - 05/03/10 04:45 PM

Checkball is in there....the casting year I got from SMR trans is a 72.....the original is stamped '75....may be there is something there ?

Dan
Posted By: John_Kunkel

Re: 3rd shift - 05/03/10 10:04 PM

I'd give it to the shop that built it.

The only other thing I can think to do is hook up a test gauge to the governor pressure test port and check the pressure on the road; there should be about 10 psi for every 10 mph.
Posted By: Wedgeman

Re: 3rd shift - 05/03/10 10:55 PM

HI JOhn,
I put the old VB in and everything works fine..

I''ll be returning the VB
Thanks everyone !

Dan
Posted By: Wedgeman

Re: 3rd shift - 05/06/10 08:45 PM

And the answer is ..........

A non lock-up valve body, simply doesn't work in
a later lock-up transmission

Dan
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