Review on 🚚 Chevy Pickup Silverado GMC Sierra Fuel Pump 1999-2004 4.3L 4.8L 5.3L 6.0L 8.1L w/ Sending Unit & Fuel Pressure Sensor, Replaces E3500M by Ron Turner

The fuel pump arrived quickly and well packaged. It worked great the week it was installed. The pump has a newer blade-shaped connector that replaces the old square connector. I would give five stars if the included schematic was really helpful. The writing is so small that I had to use a magnifying glass to read it. The diagram itself is incomprehensible. It took a lot of web surfing to figure out the conversion. If you have a 2003 GMC Sierra 1500 HD (and possibly others) with the original pump, these charts should help. By the way, not all cars have two wiring harnesses leading to the pump. Mine only had one. Something with a tank pressure sensor to monitor vapor emissions.