2017 L5P Duramax Fuel Filter (TP1015)

Joined
Sep 20, 2017
Messages
527
Location
Southeast
12,852 miles
522.4 engine hours
DIC fuel filter life was ran down to 0%.
The L5P fuel filter is much easier to change than LML and prior Duramax fuel filters that were behind the passenger side fender liner. All you need to change the L5P fuel filter is a 36mm socket and a pick to change the 2 o-rings. It takes about 10 minutes to change the filter and the fuel system bleeds itself when you cycle the key a few times. The older Duramax engines did not have a lift pump and had to be bled manually. The OEM TP1015 can be had on Amazon or eBay for ~$20-$25 each.
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Here's the second fuel filter change for this truck. I have 1,118.2 engine hours and 23,326 miles total on the truck. This filter was in service from 5/13/2019 to 7/11/2020. I put 595.8 engine hours and 10,474 miles on the truck while this filter was in service. The fuel filter still showed 8% left on the DIC.
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