i have had this 86 k5 for a week. been drivin it to work and all has been good. on the way home from work tonight it died just like you turned the key off. i let it set approx 20 min. and it started and run for about 10 minutes. had a buddy come and get me, went home got tools and went back. blazer started right up and never missed a beat. so whats up with that???