Since it�s a 95 you can get a cheap code reader for about $30 to read the codes. It won�t display any data, but that�s OK.
You will probably find code 633 (torque converter slippage) another transmission slip code. When the PCM detects slippage beyond a set tolerance it sets a code and puts the transmission into limp home mode. The 1-2 bang shift you feel is a result of limp home mode. Removing the battery clears the code and the PCM starts clean, until slippage is detected and limp home mode is activated.
This is a common problem (on OBDII cars it�s code P1744) with the CD4E (contour) transmission.
Do a search on P1744 in the transaxle section. I posted a fix back in june 03.
The more you drive it the more parts you will damage.
jeff