2002 chevy avalanche fuel pump

gasoline
pump
chevrolet
avalanche

#1

My 3rd fuel pump went out today, 1st at 80,000 mi. Truck has 125,000 miles. Why would this keep happening? 1st time replaced at Goodwrench, 2nd at a repair shop, 3 as well. Could bad ground be damaging them?

Thanks

Mike


#2

Do you let the fuel run low before fill ups? Low fuel levels will allow the pump to prematurely wear out.

A dirty fuel filter will make the pump work overtime and as a result, wear out.

Each time you thought the pump died, you turned the key to ON and listened for the priming buzzing noise?


#3

Well, they recommend replacing the wiring harness and relay at the same time to make sure you don’t put too much of a load on the pump. You also have to suspect the ground connection and the connection at the pump. I’ve had them both. I also only use Delco pumps.