They simply don't last for ever. The best way to extend the life of any fuel pump is change the fuel filter when needed, it put's less stress on the pump.
No it does not.
are there 2 fuel pumps on a 1984 chevy citation
Fuel injection wasn't available on K/5 blazers until 1987. Prior to that year, all blazers had mechanical fuel pumps, and would not have a fuel pump relay.
AnswerThe fuel pump is IN THE FUEL TANK.there is a fuel pump hooked up inside the fuel pump along with the sending unit..
i don't believe blazers have fuel shut-offs, Jason
yes
many fuel pumps have fuel enjections
They have both.
No, just one.
No, There is only one and it is inside of the fuel tank.
fuel pumps whine when they are going bad
A 2001 Chevy Blazer does not have a carb. It is fuel injected and has a throttlebody. If the fuses and relays check okay and the fuel filter has been replaced, I would suspect the fuel pump has failed.