hello im brand new to this forum and I have a 85 300d turbo diesel and just got it out of the shop today because before it had vaccum problems, it wouldnt turn off with the key, it took it like 35 sec to get to 60mph the blinkers didnt work and the tranny shifts kinda hard so anyways the guy charged me 400 bucks and I drove it down the street and it didnt work but when I stopped to get diesel I restarted it and it shifted smooth blinkers worked and every thing, and now everything quit workin again

whats wrong thanks in advance.
Wyatt