GM Genuine Parts MU2139 Fuel Pump and Level Sensor Module

I highly recommend this part. When considering all options for the pump replacement, consider that this part has the float, pressure regulator, and all of the other options that complete the install. It would be a mistake to go through the labor and trouble of dropping the tank and not replacing all components.If you’re not certain if the fuel pump is your problem, buy one of the cheap OBD2 WiFi scanners and use the Car Scanner app. I was getting around 38-42 psi on fuel pressure and this pump should operate around 60 psi. I was experiencing a poor start and a stutter at low rpm/high load (cruise control going uphill).

Perfect for my 2009 Tahoe 5.3 LTZ Flex. EXCELLENT price. The repair shop wanted $350.00. I would definitely buy this one without hesitation. Hands down!!