With an empty DEF tank, limited speed messages will be displayed: 55 MPH MAX SPEED UPON RESTART (Vehicle speed limited to 55 mph (89 km/h) at the next restart.) 4. Based on your description, it seems like your 2018 Duramax truck is experiencing an issue with the reductant level sensor, which is part of the Diesel Exhaust Fluid (DEF) system. Given. If you’re driving a Duramax and suddenly see that frustrating warning light indicating your diesel exhaust fluid (DEF) tank is empty, even though you just filled it up, you’re.

DEF issue (tank is full ) How to remove? : r/Duramax

The P1050 that's active is the major code here, it's for the level sensor being in an invalid range. I see this happen due to one of two reasons, when the tank was ran low (which can then be.

Added one 2.5 gallon jug of Blue DEF which to my knowledge is API ISO 22241. DIC still reads low and mileage dropping. I got up this morning and added another 2.5 jug. Still no. The owners manual clearly states you can add 2 gallons of fluid to an empty tank and let it idle for about 30 seconds after startup without driving and the message should clear,. Dumping in jugs and going by the def guesstimator (to decide if it's full) in the dic makes it tough to get an accurate number. Usage should be somewhere around 1.5 - 2 gal def.

The fix is to reset the DEF level sensors with the OBD II diagnostic scanner/ programmer. Found a local shop with the scanner they reset the DEF sensors and cleared the. I finally added some def fluid at 3500 mi and was wondering how everyone tells that the tank is close to full? I just listened and as it sounded like it was getting full, I stopped. Any.

2011 duramax Diesel van - had 55mph msg, filled DEF tank, mesage did not clear - while driving now get the message limit to 4mph at next fuel fill. I have seen posts about a. When a dmax def tank gets to 'empty' it puts up a warning screen and starts a countdown timer that indicates it will be applying speed limitation after a period of miles has.

Def Tank Full But Says Empty Duramax. Def Tank Full But Says Empty Duramax, , , , , , , 0, DEF issue (tank is full ) How to remove? : r/Duramax, www.reddit.com, 0 x 0, jpg, If you're experiencing the tank full, empty display issue with your Duramax fuel gauge, here are some steps you can take to identify the problem: Check the fuel gauge fuse: A blown fuse. DEF empty message and in limp mode, but your DEF tank is full. That fault mostly caused by a faulty DEF level sensor. If your DEF shows that the level is too low, your truck will go in., 16, def-tank-full-but-says-empty-duramax, RV Rentals

Def Tank Full But Says Empty Duramax.