Hey everyone,
My wifes 97 Chevy Lumina (car) has an issue when cold. First thing in the am after putting into reverse it will not engage for several minutes until warmed up. After warm it shifts and drives great.
I had the trans flushed and BG conditioner added, ever since it still has the same symptom, however now it will also do it in foreward gear, again only when cold. When warm it is great. She did rev it up slightly once out of frustration and it went into gear, a little harsh but it did shift in.
I was thinking maybe something sticking in the valve body, but I have not worked on one of these. Any help would be great!!!!!!!!!!!!!!!