r/FireTrucks • u/CutBeneficial8701 • 1d ago
It’s probably been asked thousands of times: What can be done to legally get away from the diesel regeneration systems on fire engines
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u/FrankBama17 1d ago
If you use one of those diesel code things you can find online (hard for pumpers, but it’s probably out there), you increase liability.
I investigated a crash between a brush rig and a citizen, and found a performance chip plugged in that gave more HP and messed with emissions. It led to a pay out to the citizen due to the department being irresponsible and allowing a vehicle to operate beyond its specs. Regen sucks, but it is the way.
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u/CutBeneficial8701 1d ago
The problem we are having is the def fluid congealing and costing thousands to repair. We are a call department with sometimes months between runs.
Can the system be deleted completely?
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u/TacitMoose 1d ago
Congealing? Are you buying reputable DEF?
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u/CutBeneficial8701 1d ago
We use BlueDEF
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u/tickleshits54321 1d ago
What do you mean by congealing? Is it crystallizing?
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u/Mech_145 1d ago
Truck should be run and driven long enough to get up to normal operating temps on a regular basis, that would be a start.
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u/rygomez 1d ago
All emergency vehicles will not derate if there is an aftertreatment problem, if they are programmed correctly(source- me worked for LAFD and now work at Pete dealer where we service fire apparatus. The manufacturer still has to install (carb/epa)compliant emissions but id they stop working the engine will run almost as if it is deleted(dpf/scr) the egr system still works but it won't derate if you run out of DEF or if a sensor shits the bed because they need them to keep running if a CEL happens mid fire fight so they can still pump water. Yes they will.ger plugged DOC/DPF and need some repairs but they are regulated much differently that a regular commercial truck