After a fluid change/new unit It is true that the vehicle needs to "learn" the new unit, as well as the new driver, and some strange clunks and thuds can be experienced, but as your used transmission probably has an unknown history/condition it is difficult to know what the sources of your maladies are. I would drive it normally for two weeks, and if it is still "malfunctioning" I would assume it is not experiencing a learning curve, but that there are deeper problems.

 

+1 @ CK there's no assurance that the used unit isn't on it's way south like most do, hence why I went w/ a rebuild. Good luck though.

 

this one has 171,000 miles. My car has 120,000 miles. Who knows but Im not going to put the cost of the trans rebuild on a $3,000 car.Thanks...will see!

 

170K ?! I'd be looking for another one.

 

. I hear ya... I intend to overhaul the one that came out. I did connect pos to beg The correct way 😂. I can see that it has done some good already. Just drove it to Church and back today 1/2 mile. I’ll torture track it tomorrow.

 

I have tried my three code readers but can’t get any codes. The dash does come up with traction control, ABS light, suspension??

 

Is this before you start the car, then goes away? or is it on all the time? What is the battery voltage with no ignition on? It needs to be 12.5V minimum.

If it keeps banging into gear, that's a sure sign of valve block wear, where the pressure valve wears a groove or lip and binds leading to over pressure and bang into gear. It can also crack the valve blocks. The main thing is the circlip holding the A drum - if this pops off when over pressurized then it's a rebuild.

Luckily the TransGo kit for these transmissions keeps them running longer so maybe fit this along with the rebuild job.

 

Still am debaiting to pull trans are hoping to run acrossed a simple solution . It does not look good. Help?