2017-2024 DURAMAX: Fuel Filter Replacement (L5P)
Time: 15-30 minutes
Difficulty: easy
Cost: $15-30
WHY SERVICE
When fuel pressures reach 30-40,000 psi through a nozzle as small as .007", you'll want to make sure you have clean fuel. Problems such as rough idle, hard start, no start, limp-mode, etc can be traced back to bad fuel gumming up injectors, pumps, and filters. It is imperative on diesel engines to routinely replace the fuel filter.
INTERVAL
Every 10,000 to 25,000 miles, with 15,000 miles being pretty standard.
METHOD
The video below demonstrates the fuel filter replacement on a 2017-2024 Duramax 6.6L with the L5P Engine. Be sure to reset the fuel filter percentage remaining indicator on the vehicle's information display as part of the service.
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Fuel Filter Socket
1-7/16" Socket
Swivel Oil Filter Wrench
Swivel oil filter wrench. Fits most standard size oil filters.
Disposable Shop Towels
Scott Blue Shop Towels in a Box
GM Fuel Filter TP1015
GM TP1015 diesel fuel filter w/ seals
Disposable Gloves
8mil disposable work gloves
3/8" Torque Wrench
10 - 100 ft lb 3/8" drive torque wrench.