Josh W

Thanks you guys. Sounds common and not too alarming. I am new to diesels so still have a lot to learn. I'll check out the other forum. Thanks again.

I just broke 2000 miles on my new silverado 3500 duramax. After towing on are rally cold, -15f degree day def gauge read 30%. I know it was full when bought. Dealer went to top it off and it only took .25 gal. Long story short it reset itself after 3 days and dropping to 29%. Today I towed and the low I saw was -18 F. Gauge is reading at 30% again and I know its wrong. Is this a common issue? If its cold related could it be a bad sensor? Will replacing it fix it? I will really be upset if it causes speed to be limited when def is not actually low. One day it was -20 and truck had sat for over 24 hrs and wouldnt start. I plugged it in and it started a few hours later. It kind of sucks having to open the hood to plug it in. Dealer said gm does it on purpose so the plug doesnt get covered in dirt/ice. Any solutions for this? My friend has a gmc 3500 and it's run through the grill. Thanks in advance. I am stoked on the power of this truck but concerned as its having a few glitches and is brand new.