There is no where in diagnsics that relates egr codes to def heater lines it probably happened when it was cold cuz that’s when it had to work really work is it just a line heater or is the heating system pretty easy to diagnose you turn on with brass and u measure if you have 12 v coming in to the heater and the heat solenoid. Very simple.
It was a fuse for the DEF system. At least I have an almost completely brand new emissions system now...
This is such a sin, to spend all that money and time and for what something that can be checked in a matter of seconds, I'm suprised how these people still perform all this work and at the end they just say well a fuse was bad but other things needed to be changed to, it doesn't make any sense to me at all. As long as you got it figured out i guess.
This is how truckbrands and enginebrands get a bad rep. I have said it before that not the emissions are the problem but some off the clows working on then.
it is really a sin all this wasted money and time something that should take 10 min takes 10 days unbelivable.
We were down for 2 months. I'm going to buy a service manual and just purchase specialty tools when I need them. I think I'll actually save time, money, and be more confident in the work performed than any warranty. Reading the notes made me wonder if it was the first time the techs had performed some of the tasks.
I always say everywhere u go depends on the guy that looks at your truck you can go to a dealer and the tech is inexperienced u are fed u go to a whole in the wall place the guy has got common sense u get lucky this business always seems like it’s the luck of the draw
I would guess that they're likely related, but it's possible that you have multiple problems. Check to make sure that you've got a good connection from the battery to the aftertreatment system. Then check all of the fuses and relays related to it. If that doesn't fix it, you've got to start testing the wiring harness, ACM, and the components. I had a problem a few months ago where the DEF gauge showed totally empty, but never gave me the warning light that it was low and I knew that I had at least 1/4 left. The next time I went to start up the truck, it started giving me aftertreatment codes. It ended up being the wire to the battery broke at the ring. All I had to do was strip the wire, crimp it, heatshrink the tubing, and put it back on the positive terminal to the battery. If you continue to run, you're going to get more codes with derate warnings.
