Diesel particulate filter regeneration is not obtained by "blasting it out". The DPF has back pressure sensors fitted, when the ECU determines that the filter is becoming clogged it illuminates the warning light. To regenerate the PDF you need to hold the vehicle speed between 50-70 mph, this massively increases the DPF temperature and the ECU then goes into regenerate mode and injects diesel on the exhaust stoke. The unburnt diesel enters the combustion area just before the DPF and is ignited which raises the DPF temp considerably which burns off the contaminants. While driving between 50-70 mph it is important that you do not stop or slow down or the whole cycle has to start again. If the PDF is badly blocked, PDF cleaner should be added to the fuel which reduces the diesels combustion temperature and helps to ignite the fuel in the chamber at a lower temperature. Revving the nuts out of a diesel engine to 5k does nothing but harm. The whole business about diesel engines being bad for the environment in the instance of London is pure claptrap, the exhaust gas from my 2.9 ltr diesel is cleaner than the air passing the air filter. Most of London's pollution is made by poorly maintained public service vehicles....take a look at the next bus or black cab you see pulling away and watch the clouds of blue/black crap coming from the exhaust. The modern private diesel engined car is just being used as a Councils cash cow. London's pollution wouldn't have anything to do with Gatwick, Luton, Stansted, Heathrow and City airports operating a plane stack directly above would it by any chance?
If you think revving it does nothing big harm then speak to blokes that have diesel powered industrial equipment. They have a mode to burn contaminants off the dpf which does exactly that. Rev the engine at a certain rpm for about 40minutes
@@mayk3lll I don't think...I know! I have 46 years in the automotive industry, starting as an apprentice then becoming a fully skilled vehicle technician (not a parts fitter or mechanic). I then went forward to own various businesses in the field of mechanical and body repair....so I might just know a little bit more than "a bloke down the road"!!! For you information, revving an engine to high revs isn't bad for a petrol or diesel engine isn't bad...when the engine is under load. Revving a engine to high rpm's while not under load is.....it's also worth noting that most diesel engines red line at between 3500-4000 rpm's and so revving a diesel engine not under load to 5000 rpm's is extremely bad! It is bad enough that the UK ministry of transport test revs the diesel engine to it's max governed rpm three times in a row to measure the exhaust gases....but it is only held there for a few seconds each time to obtain a stable reading and not 40 minutes!!!!
@@keithbaker3405 i didnt say car so i dont think the ministry of transport is going test industrial equipment. 2. 40 minutes is for the dpf burn off, you dont burn anything off if certain temps arent reached. 3. I totally agree not to rev an engine while not under load, i understand that causes damage. 4. While not being exact with rpm i also do understand diesels dont rev high, i was just generalising as you stated 5krpm. My point here was simply that diesek powered industrial eqpuiment have a dpf burn off mode that rev tge motor for about 40minutes. Cheers champ
@@mayk3lll No problem bud!....try and pick holes in my comments to justify your inaccurate views if you wish but we both know that whether you admit it or not...a) I know what i'm talking about and b) you have learned something from my knowledge (no need to thank me). Ps, plant diesel engines that rev to 5k!!!...they must have slipped in from a parallel universe! The main reason for diesel engines in plant equipment is that they produce maximum torque and good fuel efficiency at LOW engine speed. Keep learning fella.
I had a power problem and then a 'soot filer is full' message on the dashboard. After seeing this video, I was able to spend about 20 minutes in the car on ordinary country roads, typically between 3k and 4k revs, and it worked! Great video, and thanks for the tip!
Same problem happened with my 2003 vauxhall astra 1.7dti. Bought it from an old guy who used it for very small commutes. Only did around 500 miles a year. Dpf was blocked to the point where in every gear it wouldnt rev past 2.5k rpms and was so slow getting there. I didnt watch any videos on it but i just kept on pushing the car to red line in every gear. At first it pushed out tuns of black smoke but after doing that for around 30 minutes the car started driving normally and the problem was fixed. Ive not had a problem with the car since and it runs butter smooth. So i can vouch for this video. This method really does work!
So you have to do this in evrey gear until the left arrow reaches 5? And then going back from first gear to the last gear half hour long? Or do you have to do this once and maintain driving 30 minutes long ride?
Rather than risking possible engine damage or a breakdown, it would usually be better to remove the DPF and wash it out. You can either have this done professionally for a cost, or you can do it yourself for a the price of a couple of dishwasher tablets and a few grams of oxalic acid powder that you mix into water. Plenty of videos on RU-vid showing how this can be done, and if you don't rush it's just as effective as the professional service you pay for. Don't forget that a DPF is usually only blocked as a result of a mechanical fault. Performing a regen, forced or otherwise very often only buys you some time before it becomes blocked again. An investigation and a series of tests should be carried out to ascertain the cause of the blockage. Under normal driving conditions a DPF would be expected to last at least a hundred thousand miles before any intervention would be necessary. Basically your DPF is a filter, every time the engine wants to emit soot the DPF catches it to be burnt off safety during a passive regeneration cycle during driving. However if your car emits more soot than it should then the DPF will soon start to clog up as the regen cycles never remove 100% of what they capture. Obviously the dirtier the engine is running the faster it will clog. There's a myriad of reasons why the engine might not be running as cleanly as intended. Such as: poor servicing (dirty oil or clogged air filter), blocked engine breather system or faulty psv valve, EGR system fault, mechanical wear, turbo system fault, fuel delivery system fault, such as worn injectors. And one that's thing that's often overlooked, glow plugs! Without these functioning properly the engine is not able to perform a passive regeneration cycle, they are required to ignite the diesel that is injected during the exhaust stroke in order to heat the DPF to a sufficient temperature to burn off the soot etc. So as you can imagine there's often considerably more to take into account than simply the DPF itself!
I came across this video yesterday after the check engine light went on. I did exactly as you described here and the check engine light went off after 10-15 minutes drive. Thank you very much. It was quite helpful. From now on i will do regular manual DPF regeneration :)
I think it is time to make the DPF structure easier to clean. It is not eco-friendly to use special equipment and solvents forever. The manufacturers should change the DPF structure so that it is as easy as replacing the engine air cleaner.
I was thinking the exact same thing why can't they just engineer a certain type of filter you can just pop out and pop in because all this regeneration stuff is just bull crap
WELL! ive subscribed! im having a go at this tomorrow as Ive had bought an 07 plate S-Type 2.7 Diesil Jag and in 5 weeks ive done 1800 miles and never gone above 2000 revs as thats 70mph in it and whats happened is the "Restricted Performance" message has come on the dash! now this car is mint 11 jag stamps and last service March 2019, 111500 on the clock belts were done the lot plus MOT and I think ive been driving it far to softly even the miles per gallon has gone down, it was showing 40 mpg when I bought it 5 weeks ago now showing 32 mpg!! Ive nothing to lose only a few quids worth of diesil, I was going to buy a scanner but Ill give this a go first, so if you see a jag in the inside lane ITS ME! :). Thx for the vid and sorry about the one of you being arrested, twats the law sometimes. I'll keep you informed. Keep Rockin !
Anyone that don't work on cars or don't know how to fix cars wouldn't understand.... I got a few cars and when someone driving diesel cars with the dpf pottering around town low RPM because car makers in the "Infinite wisdom" keep diesel engine rpms below 2000. Which is good for fuel economy but kills the DPF as it never gets hot enough. I've taken what the mechanics basically said you need a DPF replacement bud. Vehicle in limpmode DPF almost blocked to a point where the car was hard to start. "Mind you old bird" 200k miles. It capacity to hold ash probably getting to it limit as well. Filled it up with DPF cleaning agents 2 bottles of it as prescribed in the tank and the went on a long highway speed road trip 9 hours.... Got back to base it didn't do shit so I thought & went through an entire tank of diesel plus 2 bottles of this garbage "I thought". Next day though I filled up the tank again with 1 last bottle at the concentration for maintenance. Drove it to the shops still in limp mode & still no turbo... It was that bad but still it wasn't final stages of "Limp mode" where it would limit speed up to X & 3000rpm max. I could still go to whatever speed the engine gave me rpm up to 4k. Got back in the car from the shops and out of the parking lot at the traffic light i notice the DPF light flashing then it turned off and the light turn green. Normally I just plant my foot all the way down because been reduce power it takes the foot been planted all the way down to just move it. This time when I did that the vehicle wheels spin out and launched! Cleared the blockage. Mechanics wrote it off but I didn't.
Took my dpf off , so see if it was blocked . Run fine with it off got power back , easy test . Once I found out it was blocked took it off jet washed it , put back on job done 😊
I have to do this periodically with my 150ps Zafira 1.9 cdti. Eventually large clouds of black smoke come out and then everything settles down back to normal. Using premium diesel fuel (yes expensive I know) whilst doing this helps. Being sure the timing chain/belt is good is essential !
DPF, reduces NOX.... DPF regeneration needs a decent 20min constant run.. or on mitsubishi trucks it has a button that for 20mins will do a forced regen that holds the revs at 2500 ish
Probably easier taking it off and cleaning it manually. However this process will do the engine no harm whatsoever. Its an engine, this is what it's designed to do and well within its tolerances
@@westyorkshireengineservice9160 mate its done billions and billions of revolutions before that so another 100k won't do any harm. Especially when it's hot
@@westyorkshireengineservice9160 Indeed, floored it from first gear to second gear but only got to 4,500 revs. Would not go any higher! BUT all aside I have actually noticed a difference in response afterwards, already. So Thanks
i see bud ,, but sorry you are wrong the cars are made to do this the makers a not daft or you can get your self a maxicheck pro it will do a froced re gen
This DPF problem is a pain in the back side. Above 40 mph and 25000 rpm for about 20 minutes is more than enough for a regeneration. And regeneration can also be done just on an idle car through the vcds.
Thank you with excellent work. i just did the engine overhaul on Navara D40, but i cannot stort it up. It shows P0336 continuously and keeps on hesitating to start. Any idea what perhaps I am missing?
Would you recommend I do something similar? I do lots of approx 7 mile stop and go journeys to work in my 14 plate 1.6l (105hp) skoda rapid tdi. When on mway, every 200 miles or so, I drive it in 4th gear for about 5 miles at 70 mph. I go a bit faster if conditions allow. The car still does an auto regeneration approx every 500+ miles. What's ur opinion?
I bought a diesel, wife bought a diesel. We didn't know dpf's existed until now. We drive normally and neither have had any problems. 130,000 miles and 85,000.
All depends on vehicle manufacture. Peugeot/Citroen (and some other manufactures) from around 2000 onwards use some form or other of "Fap" or "Dpfs" system where a separate tank or bag reservoir holds a very expensive regen fluid which is injected into the common fuel rail via a separate injector and controlled by a ECU. The refill of the tank unit is part of the service schedule. Other cars such as my Jaguar do not use this system but works by over injection. Either way, providing your journey's consist of a regular uninterrupted 50-70mph run of around 15-20 miles you shouldn't have any problems. Just using the car for low speed, low journey distances and you will have to go through a DPF regen routine!
Same here pal, got a mk7 Golf GTD, driven normally, no issues. If it starts a regen when i get parked up, i will hold the revs at 2000rpm, letting it complete the regen. I have a scangauge connected to the obd port. This reads exhaust gas temperature, around 2000rpm it is at its highest, higher rpms the temperature decreases due to high air inflow.
Keith D Hi Mr D lots to say but looking at your channel not much to say well did you go to part 2 and also the customer asked us to do this which worked and was far cheaper than replacing parts so thanks so much for watching buddy hope you have learnt so much from the video it does not need to cost the customer a arm and a leg 🦵
You must be a daft low IQ fool who doesnt know anything about DPF systems, this is EXACTLY how you put your car into a forced regen if all other methods have failed, if you dont like the method then get ready to buy a £1000 - £1500 for a new DPF.
Sohail Ashraf that depends on the vehicle. My F350 would go into limp mode to keep a knob like this from destroying it. Besides you can manually regenerate it via diagnostics tools.
Coincidence, took my transit on the exact same route the other day trying to initiate a regen, didn't work though so had to spend £500 having a new vaporizer fitted
does the engine light go off on its own after doing this. this is the only vid ive seen that is the same as what i have done, so thanks. i have a iveco daily
I assume this is one of the cars that won't get back to the customer - at least, I hope not. What this dodgy mechanic doesn't seem to realise is that while short journeys or bad driving can cause some DPF issues, a badly blocked DPF is almost always hiding another engine issue - injector problems, turbo issues, oil consumption or even just O2 sensors getting on toward end of life causing 'rich' fuel mixture (yes, you can have that on a modern diesel). Ruining the engine like this to try and burn the soot out of the filter won't address the underlying issue - so the car will simply be back again. . .assuming the engine doesn't blow up first after being driven like that.
Very informative video wish I'd seen this a couple of years ago, my son spent around £800 when this happened to his Polo. Ive recently bought a diesel Focus, the owners manual says the car will automatically do a DPF Regen when its required is this true, or is there something I can do to keep the DPF clean Thanks
i had a similar problem but i figured out that turbo didn't worked properly so i made some checks and found out that a plastic raper pipe connected to a vacuum was damaged so i change it and was fixed at the same moment....
i would like to take some advise... here is what is happening to my Nissan Navara 2007 d40...when i try to overtake or accelerate fast it's going in safe mode...it stops accidently to accelerate and it's not even going 3000rpm with the gas pedal fully pushed ...to go in regular mode again i must switch it off for some seconds and then start again... what is it??? is it a sensor???
Turn the heater to cold, you want that heat in the engine not the cabin. How the regeneration works is the ecm injects fuel on the exhaust stoke, that fuel ignites in the exhaust & raises the temperature to 600°C plus which in turn burns all the soot that has been caught & trapped in the DPF. Heavy acceleration produces more soot due to unburned fuel. What is worth knowing when owning a DPF equipped diesel vehicle is does the ecm detect that the system is getting blocked using a differential pressure reading or does it just automatically regenerate based on fuel usage & or mileage ? If it’s a system that just does regenerations at set intervals then the blasting around in low gears is a waste of time, money & you are blocking the DPF more than it is already IF the system is not ready to regenerate. VW TDi engines now have the DPF close enough after the engine that when the engine is up to normal operating temperature the exhaust is hot enough without the need of post combustion fuelling to burn out the soot.
I have a vw passat cc 2012 2.0 TDI 170 bhp .I had blocked DPF .was too bad to the point the engine stall. all 4 injectors gone . there is raw fuel in the exhaust does that has a relationship with the DPF regeneration or injectors are bad . now we are not sure if the DPF was blocked and damaged the injectors or injectors are faulty and failed the DPF regeneration
Would this work on my 2011 Mazda 3 Diesel Sport?!😖 DPF light has been flashing a few days, tried to do stuff like this but no such luck yet😖 the power doesn’t appear affected at the moment, no limp mode, but I just want the light to switch off😫 Do I just keep doing it?
I am in Australia and have a 2011 R51 Spanish built Pathfinder. Does it have DPF?. I dont have a DPF warnin g light on my cluster. Do these cars have a DPF warning light?. Do they have a DPF filter ? Many Thanks
Hey mate love what you guys do!!! Im after some help, 08 d40 I've done a dpf delete, fuel filter, scv, injectors, boost solenoid, its still blowing heaps of black soot and is very slow on take off any ideas? Car is doing my head in!! Cheers
Have a peugeot 807 Hdi, FAP warning low on for long time. Put three ltrs in. Car only done 150k over 15 years. No acceleration power, starts good and ticks over nice. Feels like air starvation . Cleaned the AIR INTAKE assembly. fault Poo26. Wondering if its the DPF... could it be? Not sure if I could be brave enough to 'leather it' as in the vid.
I appreciate the video and effort into the explanation but my heart nearly blew out watching the nuts revved out of the engine to force a regen. 2 ways to do this right if it is blocked without buying a new dpf can. First, add cleaner (not regen additive that has iron- that heats up and is not what you want so read the label) to your tank following the proper dose and run the car between 50 and 70 to hold a temperature steadily for 30 to 60 minutes. You are blowing crap into a filter so trying to force that "crap" through by revving the nuts out in a temperature controlled car will do nothing but back up and harm the engine. Second, option, pull the dpf can and with a jug of wynns you can fill it from the back (forcing it from the clean end out the contaminated end, so backwards essentially) having blocked off the pipe so it sits and marinates for about 8 hours and then grab a hose and wash it out. The ecu is so advanced it will limit temps and revs do not = heat in modern cars. Please never do this thinking it will "open up and blow clear" as nothing is blowing through a blocked dpf no matter how much you insist on burning your engine up.
Will try on my Ford Transit Custom 2.2l 2013 tomorrow. I have fed up with bloody dpf blocking 4 times since 1st UK Covid lockdown. Have already paid over £400 and dpf keeps blocking 🤯
I don’t understand how… I have a high mileage r51 jusy like this one I only use it in the city over the winter months , and it doesn’t get clogged … how bad are people using their cars to bring them to this point ?
Lol.... that didn’t show the difference between a Diesel engine and Petrol engine... it just showed the difference in combustion of the two fuels, Diesel engine combust their fuel air mixture by high pressure injection and compression, the petrol engine uses the spark plug to aid in the combustion cycle
Why do so many people here think that giving the engine some revs will hurt it. Shows they don't have much clue. In fact it's driving these vehicles too softly and for short runs that causes dpf clogging problems. You simply have to get the system hot. Revving the motor up to red line won't hurt it unless there is already something wrong in there. Maximum power is generally generated close to or at redline ( max safe rpm). Running race bikes for many years and building the engines, I can say that those power plants must be built to run near max rpm a lot of the time. Doesn't matter if it runs on petrol, diesel or methanol. IC engines need to be revved in order to burn clean and stay that way.
Grüß Di, guter Beitrag! Sehr gut!! 🌱 Hast du schon mal dieses Jungbrunnenwasser von so einem Wasserionisierer jemals recherchiert? Dieses Getränk ist einfach richtig gut! ✌ & Wasserstoff ist Vorsorge gegen Stoffwechsel Probleme
My DPF when it starts a Regen this is what happens (1) loads a white smelly smoke (2) My temperature gauge goes to 0 (3)MPG goes down loads and when idling mpg usually sits at 1 but in regen it sits around 9. I have to give it a thrashing in 4th over 2000 revs for around 10 mins then temperature gauge starts going back up to normal running temp I now know its finished. Vectra C 2006 Remapped 150bhp - 210bhp DPF delete and blocked off flaps glued open but NOT mapped out yet
Had trouble with my DPF I don't understand why manafacters don't fit a access door so we could change the filter instead of the whole lot at great expense 😧😲😩😠😢😭
Nissan DPFs are known for being shit. I’ve got a VAG DPF on my car and it’s never been a problem after 170k. Never used additives and the car has always passed the emissions easily. The wife has a BMW 116d that’s done 5k miles in 2 years and never a problem either.
Hi, Excellent vid! Can you advise me on how to drive my Ford Mondeo Mk4 estate 2ltr tdci 2010 plate, that the DPF warning light has just come on? What revs should I do on the motorway to activate the regeneration system? Any advise greatly appreciated. Thanks!
Just remove the feckin dpf altogether and get it mapped out, I did, and never had to worry about all that bullshit again. Better fuel economy and performance.
