2019+ 3.0L Duramax Fuel Filter Change
A Fuel filter change on a 2019+ 3.0L Duramax is simple to do and a critical piece of maintenance. Typically these are done at maintenance intervals that you will be alerted of on the dash, however a bad batch of fuel or extreme low temperatures could make the filter change needed earlier than anticipated. A plugged fuel filter could cause anything from low power to a poor running engine. Luckily, not much is needed for the job and the filters are relatively affordable when compared to other diesels. This guide is specific to 2019, 2020, 2021, and 2022 model year 3.0L Duramax equipped trucks. The procedure is the same for both Chevrolet and GMC models. For more Duramax related how to articles, visit the Chevrolet page.
Tools Needed:
- 36mm socket and ratchet
- Torque wrench
- Drain pan
- Mechanic gloves
- Rags or towels
Parts needed:
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- Fuel filter AC Delco TP1015 or equivalent aftermarket part
2019+ 3.0L Duramax fuel filter change procedure:
- Park in a safe spot and be sure that the ignition is in the off position
- Locate the fuel filter housing and place the drain pan underneath
- Fully drain the fuel filter housing and the close the housing drain
- Using the 36mm socket and ratchet, remove the housing cap with the filter
- Holding the cap upside down, with the filter facing the drain pan remove the filter from the cap
- Remove both O rings from the fuel filter housing cap
- Clean all contaminants or particles from the cap
- Install 2 new O rings to cap
- Install fuel filter in the fuel filter housing cap
- Reinstall the cap to the fuel filter housing at torque to spec (19 ft lbs)
- Remove all tools from the area
- Prime the fuel system by cycling the key to the On position and letting the fuel pump cycle on. Leave the key on for 30 seconds, cycle the key off and then back on. Repeat 3 times
- Start engine. If it fails to start – prime the fuel system again and retry.