So i got my 1991 buick lesabre friday night. Yesterday drove it to practice, then home, then to school, then me and my sister went and filled up with regular 87 gas, then back to school. The car was off for maybe 20-30 minutes, and wouldn't start. The engine would turn, but wouldn't turn over. After a while it started and I almost drove home, but it stalled out and shut off. Luckily it started and I made it home. What's wrong with it? A friend said it could be the fuel pump?