DPF delete advice
Cargo Master
Joined: Feb 2005
Posts: 2,904
Likes: 186
I would be trying to figure out why you're plugging up so often? This would be where to start rather than treating the problem/symptoms. Prevention is always cheaper and less frustrating than tratment.
The newer diesels like to be taken out and ran at highway speeds and allowed to get hot. Most engines especially diesels run cleaner at load and speed. That's why we only tune our units at greater than 50% load in the power plants, 3600 RPM in Canada, Mexico and the US and 3000 rpm in most of the rest of the world.
If you aren't getting everything up to temps due to low speed and short trips that could be part of the problem.
Are you losing/burning engine oil?
Where are you getting your fuel?
You running Red diesel from the farm? These engines run Ultra Low Sulfur Diesel ONLY!!! Anything else will cause trouble so be sure and stay away from off road/red diesel. It's not only not healthy but illegal if you get caught. Washington and Oregon DOT check even pick ups out where I live because of loggers saving money and filling their trucks off the tanks at the site. Had em one time stop me in a company truck and they stuck a tube in the tank to check the color.
Deletes can cause a whole different group of issues and some in depth opinions ( i will share if you insist) but I recommend not too.
My experience and opinion is to find the cause and correct the issue first then as a last resort think about deleting.
The newer diesels like to be taken out and ran at highway speeds and allowed to get hot. Most engines especially diesels run cleaner at load and speed. That's why we only tune our units at greater than 50% load in the power plants, 3600 RPM in Canada, Mexico and the US and 3000 rpm in most of the rest of the world.
If you aren't getting everything up to temps due to low speed and short trips that could be part of the problem.
Are you losing/burning engine oil?
Where are you getting your fuel?
You running Red diesel from the farm? These engines run Ultra Low Sulfur Diesel ONLY!!! Anything else will cause trouble so be sure and stay away from off road/red diesel. It's not only not healthy but illegal if you get caught. Washington and Oregon DOT check even pick ups out where I live because of loggers saving money and filling their trucks off the tanks at the site. Had em one time stop me in a company truck and they stuck a tube in the tank to check the color.
Deletes can cause a whole different group of issues and some in depth opinions ( i will share if you insist) but I recommend not too.
My experience and opinion is to find the cause and correct the issue first then as a last resort think about deleting.
Cross-Country
Joined: Jan 2015
Posts: 52
Likes: 1
Non-Delete Maintenance Insurance?
I am very keen on doing a delete on my truck, but thanks to the tree hugging government, it seems that doing so is a minefield in many ways. My truck is about to reach the end of the Ford extended Warranty (48K). It has been in and out of the shop since new with all sorts of emissions issues.
Question: Does anyone know of any third party maintenance warranty companies that cover the emissions system? I know that there is a lot of cowboys out there, so am nervous!
Thanks!
Question: Does anyone know of any third party maintenance warranty companies that cover the emissions system? I know that there is a lot of cowboys out there, so am nervous!
Thanks!
5th Wheeling
Joined: Jun 2019
Posts: 36
Likes: 7
From: Claremont
My 2011 has been deleted for about 4 years now with no issues. Then a few months ago I upgraded the turbo with a Kc 64mm screamer and 2017 high pressure fuel pump. The truck ran great before deleting it or the bigger turbo, I did it to avoid any issues with the emissions or the gt32 turbo. Another reason i deleted was because I am a diesel mechanic by trade, I see all the aftertreatment and egr issues daily and those repair bills get expensive. The truck is running a low hp tune with no issues since it was deleted. I also don’t beat on the truck or race it all day. Btw I live in so cal and have to go thru smog every other year 😂.
More Turbo
Joined: Aug 2002
Posts: 538
Likes: 45
From: Lansing, MI
I am very keen on doing a delete on my truck, but thanks to the tree hugging government, it seems that doing so is a minefield in many ways. My truck is about to reach the end of the Ford extended Warranty (48K). It has been in and out of the shop since new with all sorts of emissions issues.
Question: Does anyone know of any third party maintenance warranty companies that cover the emissions system? I know that there is a lot of cowboys out there, so am nervous!
Thanks!
Question: Does anyone know of any third party maintenance warranty companies that cover the emissions system? I know that there is a lot of cowboys out there, so am nervous!
Thanks!
FTE Legend
Joined: Mar 2017
Posts: 31,969
Likes: 9,197
From: Western NY
My 2011 has been deleted for about 4 years now with no issues. Then a few months ago I upgraded the turbo with a Kc 64mm screamer and 2017 high pressure fuel pump. The truck ran great before deleting it or the bigger turbo, I did it to avoid any issues with the emissions or the gt32 turbo. Another reason i deleted was because I am a diesel mechanic by trade, I see all the aftertreatment and egr issues daily and those repair bills get expensive. The truck is running a low hp tune with no issues since it was deleted. I also don’t beat on the truck or race it all day. Btw I live in so cal and have to go thru smog every other year 😂.
Just found this:
https://www.emissions.org/loc/califo...s%20system.%20
Performing Emissions Testing in California
During a smog check, your vehicle will be inspected for its emissions and a visual and functional inspection will also be performed. During the emissions test, measures will be taken to see how much CO, CO2, HC, O2 and NOx your vehicle emits. The physical inspection will look at whether your vehicle and its exhaust system, work to limit emissions.You can visit a STAR station, a testing location or a testing and repair location. For vehicles with higher levels of emissions, it’s recommended you go to a STAR certified station. If you live in an Enhanced area, you must go to a STAR station. Some of these places will just do the test, while others also handle repairs. When visiting a testing location, make sure to bring your driver’s license, proof of insurance, vehicle title and registration. Three smog check methods are currently used in the state of California, and they are as follows:
- TSI Test – the two-speed idle test measures through the tailpipe to determine the level of emissions while the vehicle is in idle. This measure is taken both at low and high speed. The TSI test typically applies for older vehicles, although your location also plays a factor. If your vehicle is registered in a Basic area, this test will be required.
- ASM Test – the acceleration simulation mode test measures is typically used with very old vehicles. This test incorporates a drive-on dynamometer which measures exhaust emissions while the vehicle is being “driven.”
- OBDI Test – the on-board diagnostics test measures data provided via your vehicle’s computerized diagnostics system. This test is applied to any vehicle from 2000 and up.
Last edited by Overkill2; Sep 8, 2022 at 06:16 PM. Reason: add to post
Lead Driver
Joined: Feb 2022
Posts: 7,995
Likes: 4,061
All they really need to do is the OBDII test. That will right away tell them it has been deleted as the DPF regen and SCR DEF will be disabled and those sensors will be missing. Immediate fail. CA also passed a new law regarding emissions testing starting Jn 23. ALL vehicles 16K and above must be tested up to 4 times per year, including motorhomes. But thats not the kicker, the kicker is that it is regardless of state of registration! CA can do road side emissions checks on any truck from any state, and they can also check pickup trucks suspected of being deleted. IOW, starting next year, if you have a deleted truck, stay out of Kommiefornia.
FTE Legend
Joined: Mar 2017
Posts: 31,969
Likes: 9,197
From: Western NY
All they really need to do is the OBDII test. That will right away tell them it has been deleted as the DPF regen and SCR DEF will be disabled and those sensors will be missing. Immediate fail. CA also passed a new law regarding emissions testing starting Jn 23. ALL vehicles 16K and above must be tested up to 4 times per year, including motorhomes. But thats not the kicker, the kicker is that it is regardless of state of registration! CA can do road side emissions checks on any truck from any state, and they can also check pickup trucks suspected of being deleted. IOW, starting next year, if you have a deleted truck, stay out of Kommiefornia.
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
If an inspection place won't disapprove an exhaust modification which is against every states code of transportation then they better not disapprove an emissions delete.
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Hotshot
Joined: Oct 2015
Posts: 19,726
Likes: 12,872
From: Wyoming
It depends on if your talking about a muffler or resonator change versus a catalytic converter removal.
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
- It’s illegal to try and modify your existing muffler to make your car louder. This law is on the books to prevent people from creating an exhaust leak, because exhaust leaks can be very dangerous.
- It’s illegal to drive a car that doesn’t have some kind of muffler. Open pipes are illegal anywhere you go.
- It’s illegal to remove the catalytic converter. Some people are under the impression that catalytic converters restrict exhaust flow, but they really don’t…especially newer models and/or catalytic converters designed for performance.
- It’s illegal to route your exhaust system through your vehicle’s passenger compartment.
- Backfires are illegal under any circumstance, and you can be ticketed if your car has a mechanical problem that causes frequent engine backfires.
MUFFLER REQUIRED. (a) A motor vehicle shall be equipped with a muffler in good working condition that continually operates to prevent excessive or unusual noise. (b) A person may not use a muffler cutout, bypass, or similar device on a motor vehicle. (Acts 1995, 74th Leg., ch. 165, § 1, eff. Sept. 1, 1995)
When I had my emissions delete completed my exhaust was removed and a Flo-Pro delete pipe installed which removed the muffler and thus increased the noise. Within a week I had an actual muffler installed upstream of the delete pipe.
What needs to happen is a national law that limits noise above, say, 90 db within 150 ft. This could be done with calibrated dB meters at any inspection place.
Hotshot
Joined: Oct 2015
Posts: 19,726
Likes: 12,872
From: Wyoming
- It’s illegal to try and modify your existing muffler to make your car louder. This law is on the books to prevent people from creating an exhaust leak, because exhaust leaks can be very dangerous.
I wouldn't disagree with this, as long as they apply it to all road vehicles, including motorcycles.
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
As long as the replacement muffler doesn't exceed local noise standards, you can put whatever you want on there. If all aftermarket "performance" mufflers were illegal they would be going after them like they are the diesel delete suppliers.
I wouldn't disagree with this, as long as they apply it to all road vehicles, including motorcycles.
I wouldn't disagree with this, as long as they apply it to all road vehicles, including motorcycles.
I can't answer why aftermarket "mufflers" are not being looked at. Maybe why emissions deletes are looked at in certain areas. I'm just saying that if I got busted for violating EPA emissions standards (through emissions testing) then I would like to see the same enforcement on muffler deletes through dB testing.
Here is NY city law on vehicle and animal noise:
The Noise Code prohibits excessive sound from the muffler or exhaust of motor vehicles operating on a public right-of-way where the speed limit is 35 mph or less.
Excessive sound is:
• Plainly audible at a distance of 150 feet or more from vehicles of less than 10,000 lbs. (cars); and
• Plainly audible at a distance of 200 feet or more from vehicles of more than 10,000 lbs., (trucks); and
• Plainly audible at a distance of 200 feet from a motorcycle.
Animal noise that is unreasonable and plainly audible from within nearby residential property may call for enforcement action if the noise occurs:
After 7:00 am and before 10:00 pm for a continuous period of 10 minutes or more
After 10:00 pm and before 7:00 am for a continuous period of five minutes or more
Lead Driver
Joined: Feb 2022
Posts: 7,995
Likes: 4,061
As long as the replacement muffler doesn't exceed local noise standards, you can put whatever you want on there. If all aftermarket "performance" mufflers were illegal they would be going after them like they are the diesel delete suppliers.
I wouldn't disagree with this, as long as they apply it to all road vehicles, including motorcycles.
I wouldn't disagree with this, as long as they apply it to all road vehicles, including motorcycles.
The EPA has ruled that no modifications may be made to any engine that came with emissions controls in a production vehicle. That means no more Off Road modifications can be made, including exhaust systems. They also mandated that if a production engine is used in an off road vehicle, it MUST contain ALL emissions equipment as it did when in the vehicle it is sold in.
Probably enforcing it in California, and was stated that the gas modifications group "is next", but that hasnt happened, yet. I don't remember where I read this, but it was in an article related to the diesel crack downs in 2021. Changing the exhaust system from the cats back should not be an epa issue since the pipes, resonator and muffle have nothing to do with the creation or elimination of emissions, its just the means to get it from the front to the back and away from the passengers. Jack booted EPA come to mind.
Laughing Gas
Joined: Feb 2007
Posts: 769
Likes: 156
<100% behind this!!!
The EPA has ruled that no modifications may be made to any engine that came with emissions controls in a production vehicle. That means no more Off Road modifications can be made, including exhaust systems. They also mandated that if a production engine is used in an off road vehicle, it MUST contain ALL emissions equipment as it did when in the vehicle it is sold in.
Probably enforcing it in California, and was stated that the gas modifications group "is next", but that hasnt happened, yet. I don't remember where I read this, but it was in an article related to the diesel crack downs in 2021. Changing the exhaust system from the cats back should not be an epa issue since the pipes, resonator and muffle have nothing to do with the creation or elimination of emissions, its just the means to get it from the front to the back and away from the passengers. Jack booted EPA come to mind.
The EPA has ruled that no modifications may be made to any engine that came with emissions controls in a production vehicle. That means no more Off Road modifications can be made, including exhaust systems. They also mandated that if a production engine is used in an off road vehicle, it MUST contain ALL emissions equipment as it did when in the vehicle it is sold in.
Probably enforcing it in California, and was stated that the gas modifications group "is next", but that hasnt happened, yet. I don't remember where I read this, but it was in an article related to the diesel crack downs in 2021. Changing the exhaust system from the cats back should not be an epa issue since the pipes, resonator and muffle have nothing to do with the creation or elimination of emissions, its just the means to get it from the front to the back and away from the passengers. Jack booted EPA come to mind.
The reason I moved to 45 acres surrounded by woods is ahole neighbors, either with yappy dogs or loud exhaust.
