Although it is likely this question has been asked, I am new so I'll ask also. I have a 2000 Blazer with a 4l60e transmission that doesn't want to go in to reverse when it's cold. After about 20 miles or so it works just fine. Tried some Lucas additive but still have the problem. Suggestions?

 

sounds maybe like a torque converter or maybe a sun shell spline needs rebuild possibly.
*COMBINING CONSECUTIVE POSTS*
imo the lucas is bad, did you ever see how thick that stuff is? After i changed my trans filter and saw the filter i said no way was i adding that it would most likely cause clogging and poor flow.

 

imo the lucas is bad, did you ever see how thick that stuff is? After i changed my trans filter and saw the filter i said no way was i adding that it would most likely cause clogging and poor flow.