when do you know when you need a fuel pump how can you test for this on 2000 Chevrolet S10

went and got a oil change the menachinc said i might need a oil pump

Asked by for the 2000 Chevrolet S10
2 answers 1 comment
Which one? Fuel pump or oil pump?
Yeah, I got that to.
It could just be that the air in the tires need rotating.