Re: Transmission Questions

["Adam" <acprice1@xxxx>]

I removed and repaired my old shift computer about a year ago. The 
two large caps inside were sure enough broken. I replaced them with 
50V heavy duty tantalum caps. The computer was much easier to reomve 
and reinstall than I had thought. it took about 2 hours being 
carefull and all.

Adam Price
16683


--- In dmcnews@xxxxxxxxxxxxxxx, MPolzin@xxxx wrote:
> Greetings again, 
> After a complete engine rebuild, I finally have the engine running 
properly on VIN#4761. The engine now runs beautifully, so we decided 
to take it out of the garage and take it out for a spin. The engine 
performed flawlessly, however the transmission isn't shifting 
correctly, so once again I am going to have to park the car until I 
can get this worked out. The previous owner had warped the heads on 
the car, and when parked the transmission was supposidly just fine. 
The tranmission fluid was drained and replaced within the last couple 
of months. Here is what happened...
> 
> I took it out about a week ago for the first time and I noticed 
right away that the tranny seemed to be jumping around inbetween 1st 
and 2nd at low speeds (around 25 - 35 mph). I didn't want to damage 
the transmission so after about 1/2 mile I turned around and headed 
back to the shop. On the way back the erratic shifting cleared up and 
I drove it for over an hour with no issues at all.
> 
> We finished up some final work on the car this week (new 
alternator, belts, installed a set of stainless fuel lines, and did 
some maintenance on the steering rack) and I took it out again last 
night. Initially all seemed great, no problems shifting through 
first, second, or third and I brought the car up to 55mph. I then 
brought it up to 65, and all was good and about five minutes into it 
the car started shifting between 2nd and 3rd erratically this time. 
> 
> I tried it again this morning and the same thing...If I shift the 
car manually (start in 1st, shift to 2nd, then 3rd) it will stay in 
1st and 2nd fine, but once I go into third/Drive it starts shifting 
back and forth between second and third. It seems when I left off the 
accelerator it will tend to do the odd shifting, but it will do it 
occasionally when just driving along as well.
> 
> Very disappointing, I have hundreds of hours into the car and have 
spent almost $10K to restore and put the car back on the road. I'm 
good with engines, but drive train is another thing. Can anyone give 
me some guidance on how to trouble shoot this, or where to start? I 
know the shift computer on these cars are notorious for having 
problems, is there a way to determine if that is the problem or if it 
is something internal?
> 
> Thanks,
> Mike Polzin
> VIN#4761
> 
> [Non-text portions of this message have been removed]