Heda Heloise

2024 Duramax Fuel Filter Replacement. This guide will help you prepare, replace the filter, and check for leaks. The fuel/water filter assembly consists of a fuel filter/water separator, fuel heater, fuel temperature sensor, and a water in fuel sensor.

The fuel filter is a critical part of the fuel system and while this interval is 30,000 miles, it is my opinion that one should change the filter sooner. 2020 2021 2022 gm 2500/3500 hd l5p duramax fuel filter change.