I had my truck at the dealership service center today to get my coolant system looked at and the maintenance tech told me that the DEF system can be removed and that some states like Idaho don't require it. Is that true? I ask because I'm moving back to Alaska in February (from Nevada) and if I don't have to deal with DEF freezing in the winter I want to make this transition? I'm still trying to determine if Alaska requires it too?
Pipsfc
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It is illegal on the federal level. So doesn't really matter what state your in, it's technically illegal.
But it absolutely can be done, and should be done to make the truck reliable again.
But it absolutely can be done, and should be done to make the truck reliable again.
Not legally, no.... and can/will void your warranty.... and honestly, I'm surprised the tech even told you that, as it's part of the federal emissions standard/system....
Removing the DEF is risky. If you avoid living in emissions testing states, avoid DOT inspections and trust your mechanics to not rat on you then go for it. Also keep the parts readily available to reinstall for when you sell your vehicle. If the person who buys your rig gets caught they will investigate it back to you and fine the poop [emoji90] out of you too.
Not worth it IMO. But should be considered based on your circumstances for sure.
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Not worth it IMO. But should be considered based on your circumstances for sure.
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If you want a reliable truck, then go for it. I wouldn't worry about it on a personal vehicle. On a commercial truck maybe, but even then, it's easy to make it look right, and keep it quiet.
Just keep in mind for the L5P trucks it's a bit more expensive to do than the older trucks due to needing a new ecm. But other than that, the process is the same.
Just keep in mind for the L5P trucks it's a bit more expensive to do than the older trucks due to needing a new ecm. But other than that, the process is the same.
The price has gone down a good bit from what it was. When HP Tuners first offered the exchange program it was around $3000. Now, the exchange is $650 and now there is an option to buy an ECM for $1500.
This is just the cost of the ECM and doesn't including tuning or the hardware to do the tune.
This is just the cost of the ECM and doesn't including tuning or the hardware to do the tune.
Yeah the prices have definitely gone down for sure. It's right around double all said and done for the tuning portion (ecm and tuning included) compared to the older trucks. Of course it depends what kind of tuning you go with, but comparing the same tunes between the two, it's about double, mainly due to the ecm. It's worth it though haha
Just wondering, could the DEF system be turned-off, similar to tuning out AFM, instead actually removing it?
Once it is all disabled, it will need to be removed. The tank can stay, but the catalyst needs to go.
This is why the early 2000s diesels are so expensive. They are sought after, since they were the last trucks that were emissions legal without def
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This whole situation is ridiculous. I should be able to remove my DEF system in environments that are subfreezing the majority of the year. This just tells me that the idiots who implemented the requirement are city rats that have no clue. Frustrating...
Not sure I'll take the chance to remove it just yet. When I get to AK I'll ask around a bit more. Maybe AK has an exception I'm missing.
Not sure I'll take the chance to remove it just yet. When I get to AK I'll ask around a bit more. Maybe AK has an exception I'm missing.
There is zero exemption...
And you will not have an issue with it freezing. There are heaters in the tank to solve that issue. It freezes all the time here in PA too, but the ecm knows that, and will turn on the heaters to thaw out the tank before it commands the start of dosing for the def.
DEF has been around since 2010 and of all the issue these systems have, freezing is not one of them.
And you will not have an issue with it freezing. There are heaters in the tank to solve that issue. It freezes all the time here in PA too, but the ecm knows that, and will turn on the heaters to thaw out the tank before it commands the start of dosing for the def.
DEF has been around since 2010 and of all the issue these systems have, freezing is not one of them.
Yeah. And when you turn a DEF vehicle off a special pump sends all of the DEF fluid back into the DEF tank so the lines do not freeze and break. You can hear the pump buzzing for about ten seconds after you shut the engine off.
DEF freezes at around 12°F
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DEF freezes at around 12°F
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The computer knows if the def temperature, so know if it is frozen.
(and it has a whole bunch of programming that deals with frozen def status)
It will not fault when in those temperatures.
It uses a tiny amount of def per hour, so doesn't need to 'melt' much before it can use it.
1000's and 1000's of these trucks spend lots of time at temps below 12*F. Alaska isn't the only place these trucks are used at temps a lot below that level.
DEF has been in use on the 6'6L dmax since the fall of 2010, when the first 2011's shipped.
The blend ratio of urea and water in the DEF product was selected so freezing does not cause separation of the 2 parts.
(freezing and thawing doesn't damage the DEF)
(and it has a whole bunch of programming that deals with frozen def status)
It will not fault when in those temperatures.
It uses a tiny amount of def per hour, so doesn't need to 'melt' much before it can use it.
1000's and 1000's of these trucks spend lots of time at temps below 12*F. Alaska isn't the only place these trucks are used at temps a lot below that level.
DEF has been in use on the 6'6L dmax since the fall of 2010, when the first 2011's shipped.
The blend ratio of urea and water in the DEF product was selected so freezing does not cause separation of the 2 parts.
(freezing and thawing doesn't damage the DEF)
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