I have a 3.1L '95 Century with an 4T60-E 4-speed transmission. Starting about a week ago, the reverse gear became unusable. Park and all forward gears, including overdrive, seem to work without issues.
If I attempt to shift into Reverse, the vehicle won't move; it won't even roll if I push it. If I shift from Reverse to Neutral, the vehicle rolls backward a small amount before shifting into neutral.
I don't have the facilities to do any significant transmission repair myself, and I'm trying to determine whether this issue is worth getting corrected.