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MarkEHansen · 01-10-2019, 07:29 PM

Thanks, John. We have a GMC Sierra 3500. I don't know if the DEF tank sensor has any of the same issues you're referring to. At this point, we're down to less than the 500 mile mark already, so I think I must add DEF.

Assuming the tank really is empty, should the dealer have filled it before letting us take the truck home?

01-10-2019, 07:29 PM	#44
MarkEHansen Senior Member Join Date: Oct 2018 Location: Sacramento Posts: 1,005	Thanks, John. We have a GMC Sierra 3500. I don't know if the DEF tank sensor has any of the same issues you're referring to. At this point, we're down to less than the 500 mile mark already, so I think I must add DEF. Assuming the tank really is empty, should the dealer have filled it before letting us take the truck home? __________________ 2022 Cedar Creek Champagne 38EL - "Big Bertha" 2019 GMC Sierra 3500 Denali HD 6.6L Duramax TD, CC, 4WD, DRW - "Mr. Beefy"