To "delete" or not to "delete"
I have a 2012 Cummins, even the Dealer suggest I have a reputable company delete it. I have done very little research on this, but was curious how many of you have had this done? The dealer said it wi...
Forum Discussion
6.6 Oilburner wrote:
It doesn't need to freeze solid for the system to become inoperable. It is more common for it to freeze and become a problem on pickups than big trucks for sure, whether that is tank size or tank placement I'm really not sure. Seeing as how the GMs seem to be the worst for freezing tanks, I'm guessing its placement.
Here is a little hint. The SCR/DEF is not operative when the engine starts up even in 100F temperature. The EGR is what reduces NOx at startup and the SCR/DEF system takes over once the catalyst is heated up to the right temp and the rest of the DEF system is operable. If the DEF is frozen, then the heat from the exhaust and from the DEF line heaters will thaw it until it can be used.
6.6 Oilburner wrote:
I have not as of yet diagnosed and repaired any DEF systems, the parts are expensive and typically by the time people call me the dealer has run them thru the ringer for so much they are just fed up and want the equipment gone.
If you have never diagnosed or repaired it then how do you know expensive the parts and repair time is? How are you able to argue about the operations of these systems with people that have experience with them if you don't have experience with them at all? Again, your words are from hearsay and you have no real experience or real world data that you can provide to back up your claims.
