Hi: I'm new to this forum so if I don't ask this question exactly right please forgive me. I have a 1990 GMC 2500 vandura. The speedometer does't work and the brake light remains on. This problem just started recently. I replaced the vehicle speed sensor hoping that was the problem but it did not solve it. The van has a 350 Engine with about 150,000 miles, but is in excellent shape. If any one can help I would greatly appreciate it.