How to Reset a Fuel Filter Alert on a GMC Duramax | It Still Runs Some Chevrolet and GMC trucks equipped with the Duramax diesel engine come standard with an alert display in the dashboard. This alert system will let you know when to change your engine oil, when you have water in your fuel, as well as letting you know that your fuel filter will need changed soon. I have a 2015 6.6 Duramax it shot the code fuel filter clogged and Jun 06, 2015I have a 2015 6.6 Duramax it shot the code fuel filter clogged and derated then died. I replaced the fuel filter and primed the system it still will not start. I do not hear the fuel pump in the tank in gauge unless I put my power probe on pin 87 for the fuel pump relay the fuel pump will work.