Forum Discussion
BB_TX
Mar 22, 2021Nomad
DEF has actually allowed manufacturers the to ability to boost power and performance of newer diesel engines with little regard to emissions from the engine. They can now tune the engines to maximum power and performance and then the emissions are taken care of downstream of the engine with the DEF systems (spraying urea into the exhaust system to reduce nox) and diesel particulate filters (to trap unburned particles in the exhaust stream).
My 2012, bought new, has never had any issue with the DEF system and only a failed high exhaust temp sensor that was replaced under warranty. Problems are sometimes mentioned here. But considering the hundreds of thousands of DEF trucks having been sold, it seems those complaints are relatively few. Problem is that if a few mention a problem, then it seems to take on a new life and becomes a wide spread problem.
Deleting the emissions systems are done by some. But in some (many?) states it is illegal. In Texas you cannot legally sell or trade a vehicle with a modified emissions system under possible penalty of $25,000 fine. And from what I understand, a dealer cannot legally take one under trade.
My 2012, bought new, has never had any issue with the DEF system and only a failed high exhaust temp sensor that was replaced under warranty. Problems are sometimes mentioned here. But considering the hundreds of thousands of DEF trucks having been sold, it seems those complaints are relatively few. Problem is that if a few mention a problem, then it seems to take on a new life and becomes a wide spread problem.
Deleting the emissions systems are done by some. But in some (many?) states it is illegal. In Texas you cannot legally sell or trade a vehicle with a modified emissions system under possible penalty of $25,000 fine. And from what I understand, a dealer cannot legally take one under trade.
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