Has anyone experienced the problem i'm having with my 91ls?
At highways speeds, driving in overdrive, when I apply the brakes even slightly, the tranny immediately drops into third with the higher rpm and the reverse gear lights up in the dash. When I get off the brake pedal, the tranny goes back up into overdrive. I noticed my backup lights are not lighting up when I shift into reverse and the rear bulb indicator is lit up. The reverse gear lights up anytime I step on the brake, whether I'm moving or in park. Acceleration and shifting while driving is otherwise normal. It's very strange to see Reverse light up at the same as Drive whenever I step on the brakes. Any ideas?