SOURCE: 1999 Chevrolet Silverado 1500 Fuel Pump
check the connector to the fuel pump for corrosion or loose pins, the fuel pumps of newer cars and trucks are designed to last at least 100,000 miles, when the new pumps quit did u verify they had power to them?
SOURCE: need to change the fuel pump on my silverado 1500
you just need to replace the 4 wire plug the 3 wire one stays the same it should have come with directions if the colors are not the same
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