Comment submitted by Raymond Boknevitz
AnonymousOpposeIndividual
Summary: The commenter, a diesel truck technician, opposes the proposed standards because they believe current emission systems cause frequent mechanical failures and high repair costs. They argue that reverting to Tier 2 standards would improve truck reliability and lower costs for the supply chain and consumers.
I have been around the diesel industry since 2008 when I graduated High school. I dreamed of being an automotive technician specializing in diesel trucks ( light, medium, and heavy duty). I pursued that passion of working on diesel trucks. I graduated college and pursued the career.
Now going on my 16th year in the industry, the only thing I've learned is that the emission system is almost all the problems with diesel trucks!! EGR valves failing causing trucks to have issues to plugged doser valves that crystalize. Most these emission systems are the failures i end up dealing with. Working on plow trucks some of them don't even make it past 100,000 miles before the exhaust system (DPF, Reactor, and the SCR) rot out and need to be replaced with cost for the part being close to 18,000 dollars or more depending on which parts need to be replaced.
I believe that going back to tier 2 would not only lower cost for truck up keep, which effects the supply chain as they pass the repair cost on to the customers! It will also make diesel trucks in the light through the heavy duty truck more reliable in turn lowering the cost of truck and lowering the cost of repairs.
Thank you for reading and hearing the people on the front line of the industry's opinion on this matter as it has been kind of shoved down our throats for us to figure out and make work.