Delete or not
Cargo Master
Joined: Jul 2017
Posts: 2,301
Likes: 554
yea tank should come out with the normal amount of hassle...ive seen guys run the air chuck connect to the def filler spot for their air on board setup.
Tuned
Joined: Nov 2017
Posts: 264
Likes: 3
From: Bend, Oregon
Advice of the big local diesel shop is to fill it completely up with DEF before the procedure and leave it sealed up. Reason being is that a full tank will hold less air and therefore will be less likely to crystalize over time. So what I did was I filled my DEF tank completely with the "Premium" DEF a few days before the tune so that the good non-crystalizing formula would be sent throughout the lines and injector. Hopefully in the future IF I have no choice but to return the truck to stock the DEF system will be perfectly functional.
Laughing Gas
Joined: Apr 2023
Posts: 923
Likes: 1,871
From: SE PA
Advice of the big local diesel shop is to fill it completely up with DEF before the procedure and leave it sealed up. Reason being is that a full tank will hold less air and therefore will be less likely to crystalize over time. So what I did was I filled my DEF tank completely with the "Premium" DEF a few days before the tune so that the good non-crystalizing formula would be sent throughout the lines and injector. Hopefully in the future IF I have no choice but to return the truck to stock the DEF system will be perfectly functional.
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
I disagree with this advice, there will be evaporation and there will be crystallization, just how much and when is the question. If you really want to preserve the system properly, drain and flush with water the tank, lines and injector and then blow air through the lines and injector and make sure the tank is dry.
I don't know why you would want to preserve the DEF system if the emissions are deleted.
Laughing Gas
Joined: Apr 2023
Posts: 923
Likes: 1,871
From: SE PA
There may come a time when he needs it to be functioning like: resale restrictions, he moves to an area where emissions are required, etc.
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
Considering I sold my DPF 5 years ago I'm already committed.
Logistics Pro
Joined: Sep 2002
Posts: 4,411
Likes: 1,016
From: Central KY
Yeah the way the pot has been stirred in this country, I personally think it is foolish to get rid of all your emissions equipment, as any state legislature could decide to bring back testing at any time. I'm trying to play it smart by keeping my EGR cooler, connections, "space ship" from under the truck, DEF system, etc. for the "just in case" scenario.
Shop owner who gave me the DEF tank advice said that not long ago he had a customer who needed to return to stock after 5 years. The DEF system all functioned correctly when they reflashed it to stock. If it were an easy job to remove the tank, flush it, clean the lines, etc. I probably would....but we all know that it's actually a b*tch to do that on these trucks. So I filled mine up, and then both ends of the system are sealed (end of the line is wrapped in plastic and sealed with tape) so hopefully it'll be fine.
Shop owner who gave me the DEF tank advice said that not long ago he had a customer who needed to return to stock after 5 years. The DEF system all functioned correctly when they reflashed it to stock. If it were an easy job to remove the tank, flush it, clean the lines, etc. I probably would....but we all know that it's actually a b*tch to do that on these trucks. So I filled mine up, and then both ends of the system are sealed (end of the line is wrapped in plastic and sealed with tape) so hopefully it'll be fine.
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Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
Yeah the way the pot has been stirred in this country, I personally think it is foolish to get rid of all your emissions equipment, as any state legislature could decide to bring back testing at any time. I'm trying to play it smart by keeping my EGR cooler, connections, "space ship" from under the truck, DEF system, etc. for the "just in case" scenario.
Shop owner who gave me the DEF tank advice said that not long ago he had a customer who needed to return to stock after 5 years. The DEF system all functioned correctly when they reflashed it to stock. If it were an easy job to remove the tank, flush it, clean the lines, etc. I probably would....but we all know that it's actually a b*tch to do that on these trucks. So I filled mine up, and then both ends of the system are sealed (end of the line is wrapped in plastic and sealed with tape) so hopefully it'll be fine.
Shop owner who gave me the DEF tank advice said that not long ago he had a customer who needed to return to stock after 5 years. The DEF system all functioned correctly when they reflashed it to stock. If it were an easy job to remove the tank, flush it, clean the lines, etc. I probably would....but we all know that it's actually a b*tch to do that on these trucks. So I filled mine up, and then both ends of the system are sealed (end of the line is wrapped in plastic and sealed with tape) so hopefully it'll be fine.
Go big or go home!
Cargo Master
Joined: Jul 2017
Posts: 2,301
Likes: 554
its one of those "i'll get around to it when i get around to it" and suddenly it's been a year and that ish is still attached to the truck lol
Lead Driver
Joined: Feb 2022
Posts: 7,978
Likes: 4,055
They still do emissions checks across the road from my house where the county line is. It is why I got rid of my deleted truck. With ol fat pants as governor, I would not put it past fatty to pass a law making every county do emissions tests. IOW if I deleted my truck, I want the option to roll it back and avoid $45K in fines and the loss of the truck if it can't be put back.
Logistics Pro
Joined: Sep 2002
Posts: 4,411
Likes: 1,016
From: Central KY
So I was using a Scan Gauge II hooked up to the OBD port to monitor soot load, regen status (on/off), etc. Something interesting that I've noticed is that since going on the weight loss program, the soot load value continue to slowly increase. It's going up more slowly than it did before, but it still reads a value and it's increasing daily. Makes me wonder where that info comes from? Is there a sensor onboard that may be still installed and still reporting to the PCM? Today it's up to 94% load. I wonder if it'll try to kick on a regen soon? Or will that number just continue to climb forever without a regen?
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
So I was using a Scan Gauge II hooked up to the OBD port to monitor soot load, regen status (on/off), etc. Something interesting that I've noticed is that since going on the weight loss program, the soot load value continue to slowly increase. It's going up more slowly than it did before, but it still reads a value and it's increasing daily. Makes me wonder where that info comes from? Is there a sensor onboard that may be still installed and still reporting to the PCM? Today it's up to 94% load. I wonder if it'll try to kick on a regen soon? Or will that number just continue to climb forever without a regen?
Maybe accelerating quickly will blow out any soot?
More Turbo
Joined: Jun 2023
Posts: 622
Likes: 263
Okay, 2021 F350 6.7L DRW 8 FT BED 33k on it. Truck sits in my drive with a big truck camper on it. I use it to haul a 5500lb boat every week in season to the local ramp and back and 1600 mile trip to the Keys for 5 - 6 months every winter. After all these pages of reading I have one question. Should I put the truck on a weight loss program?
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
Okay, 2021 F350 6.7L DRW 8 FT BED 33k on it. Truck sits in my drive with a big truck camper on it. I use it to haul a 5500lb boat every week in season to the local ramp and back and 1600 mile trip to the Keys for 5 - 6 months every winter. After all these pages of reading I have one question. Should I put the truck on a weight loss program?