Discussion Starter · #1 ·
From the error code P1870. Had noticed that it goes to OD when being 4th gear around 45+ mph. From reading the forums around. People tend to buy a valve kit and that’s what I done today. From taking off the transmission pan. Was surprised that it was less than 4 quarts that it was able to switch gears. Had replaced the valve that people said. Put new transmission filter and gasket. Along with 5 quarts of transmission fluid dexron 3. Have park and drive. But, no reverse. Not sure what is going on or what could be the culprit for no reverse? Or was it from doing the valve kit that caused no reverse ?