91 civic hatch my problem is i will put gas it it and it will drive for 5 minutes then run out of gas i put in like 6 or seven dollars and i seems to run out very fast i open the tank and theres still gas inside so i dont think its getting to the fuel pump...and if theres not lots of gas and i try and stert it on my inclined driveway it will not start untill its on flat land???? really need help!! thanks