I work with trucks and when the EGR cooler corrodes and leaks coolant into the exhaust, the coolant damages the DPF (Diesel Particulate FIlter) core so you then have to spend many thousands of $ replacing that as well. EGR was a failure in the 70's and it is a failure now - in the heavy vehicle industry.

@AutoExpertJC

2 жыл бұрын

Bonus points for new DPF - yessssss! Thank you. I did not know that.

@Low760

2 жыл бұрын

@@AutoExpertJC in my experience with Japanese trucks with EGR, the DPD/F only gets contaminated after a very prolonged period of coolant into the exhaust, and the EGR usually pumps the leaking coolant back into the intake, so it's not likely to be a gunky, carbon mess blocking up behind the egr valve. Isuzus have done multiple EGR cooler updates but they still kill the first cooler, mind you they are at 200k kms / 2-3 year's between failures.

@tjroelsma

2 жыл бұрын

@@Low760 So knowing that an EGR valve will fail and roughly knowing when it will fail, why not replace it on a set service interval? It sounds like manufacturers know about this failure point but refuse to take corrective steps so they can cash in when the valve ultimately fails and causes expensive damage. In my opinion this is somewhat comparable to the "gearbox oil doesn't ever need to be replaced" BS manufacturers claim.

@Low760

2 жыл бұрын

@@tjroelsma it's not a set number if it's a highway vehicle. It's definitely a delivery vehicle with short trips between driving that has the issues. It's a consumable items just life a dpf needing a full clean every 100k KMs on a euro 6 vehicle. Cost of doing business with big trucks.

@tba3900

2 жыл бұрын

EGR coolers are made from stainless steel and do not corrode. They are susceptible to engine vibration and obviously heat/cool expansion. The bad cooler design and bad soldering is the cause. It should have been a cartridge design where it’s bolted together with high temp sealing rings not soldered.

I wonder how many (other) car reviewers have any morsel of a clue in regard to all the essential engineering detail which John 'gets' and presents.

@AndrewEG

2 жыл бұрын

Most car reviewers are more focused on if the car has USB-C connection.

@letsseeif

2 жыл бұрын

@@AndrewEG fun times laced with irony :-)

Thanks for this John! Very well explained and detailed.

I bought a 2007 Ford Ranger dual cab ute in 2009 with low km, it was my work ute carrying tools/equipment and pulling trailer. Regular driving Sydney to Brisbane. Servicing on as per service log book. I noticed a small drop in coolant level, topped it up and went to mechanic, he did pressure test, checked hoses could not find anything, I set off on work trip to QLD on return leg at Coffs Harbour temp shot up I pulled over coolant all but gone … No idea why only when at service centre, found EGR failed and needed replacement head. Will never buy Ford again! I have Pajero Sport now and very happy with this vehicle.

@alklapaxida850

2 жыл бұрын

ford = turd

Excellent description John. Didn’t know this. Thanks man

Thank you. I like your style of filling in the background first to provide suitable context for what follows. Understand the theory first then get into the practical details. Great explanation of the EGR system. This is not the way that a lot of people think these days as I frequently hear comments like “just tell me what to, I don’t care why”. Not exactly a vision for improving competency.

One thing that helps avoid disaster is a radiator water level sensor don't seem to common now, at least you get a warning when water is low before disaster happens.

Great description John.

Sound advice to replace the EGR valve early on, John. And yes, I have also experienced the effect of cost-cutting bean counters screwing up a properly-engineered system. The problem seems to be they get promoted instead of being fired.

Sees video title "Oh he's going to talk about rangers"

@gbsailing9436

2 жыл бұрын

Ha Ha Ha LMAO!!!

@oldbloke100

2 жыл бұрын

All diesels are having problem's with EGRs. Its just a crap system.

Nice new composition and lighting

Cheers bro ❤️👍

this has to be the best egr video. egr as stated does get a bad rap. this video helps redress the bs around this system.

Informative video cheers. Would you replace the EGR Cooler as a well as the EGR valve Everest vehicles 6 - 8 years old? Any other parts you would recommend replacing?

Before the feed gets filled with 'delete' comments, presumably when the hangovers wear off at Dingo Piss Creek, EGR systems are most definitely a service item. They should be checked on a regular basis, maybe not quite every service, & cleaning/other appropriate action should be undertaken when discovered. We're several decades in to this technology & people still don't seem to get it. #MALS

@DoubtingThomas333

2 жыл бұрын

Yeah, I'd say a clean out every 50k, same with a fuel vaporiser (if your vehicle has one). The way to solve the EGR clog is to install something like the RCC351K unit from Ryco, as early as possible.

@labourlawact7826

2 жыл бұрын

Blank it off, it just clogs up your intake with soot and carbon. And nobody wants that.

Had to replace the EGR cooler in my Transit Van a few months ago. It’s done 160,000km. Started with a slow loss of radiator fluid,. Was trying to find out why it was reducing. Then a week or so later and it went big time. Like a hose pumping out of the exhaust. Cost me $1400 for my local mechanic to put an after market one in. It’s a bugger of a job to do.

Cummins and Volvo/Mack have had issues with both the valves and coolers for years. On the newer Volvo/Mack engines changing the cooler is an absolute pain in butt. One of the other issues with the systems that have direct fuel injection is carbon buildup on the valves (both diesel and gasoline). When the coolers start leaking coolant into the system, finding the source of the coolant leak can be a whole lot of no fun. Then you get the added bliss of hoping for the best on your dpf system. Many times it plugs the particulate filter up beyond it being able to be cleaned. I've seen repair bills over $17,000 for the cooler and filter and it was unknown at the time what, if any, effect the coolant going through the system was going to have on the cylinder walls and on the variable geometry turbos. So yes this is an issue now and has been for a while and these companies have no desire to change things.

Cracked egr coolers can be quite common on Isuzu dmax/colorado engines as well as Isuzu Npr light trucks. Ive had 2 dmax's crack a cooler and my son had an npr truck do one as well.

So many people (including engineers don't really understand what "lean" means. Lean means excess air, rich means excess fuel that is unburned during the combustion event. When stoichiometric ratio is achieved (approx 15:1) the combustion measured as exhaust gas temperature is at it's highest. If you make the mixture richer, the EGT gets cooler, also if you make it progressively leaner, EGT also lowers. Typically on aircraft engines, a very rich lixture is used at full power because the EGT is lower (around 1200 deg F). In cruise you can set the mixture at 15:1 where the EGT is around 1700 deg F. But you can also have a 1400 deg EGT on the lean side of peak. We call that 300 degrees lean of peak. Most small aircraft cruise at 100 degrees on the rich side of peak. So in sumary, lean of peak is cooler, and so is rich of peak. As a side note, there is a new technology (but wonderfully simple in concept) called ducted fuel injection. The engineers believe it will make SCR, DPF and EGR un-necessary as all the requirements will be met "in cylinder".

So what would happen if you just did an EGR delete would like to know thanks

Interestingly my cars have (had) factory code left unused in the ECU software for EGR but was not implemented until 1997, almost 10 years after my ECUs had the code and capability.

In a very old V6 Commodore I had the computer under the coil pack died at a very convenient place as I was almost all the way into my garage when it died. I thought to myself how thoughtful of that computer to wait until I got home to pack it in. 😂

@silverwolf4095

2 жыл бұрын

Those truck engines are not bad. Fairly sophisticated turd polishing for the era. Plenty left on the table if you want need fuller sickness.

Sage advice albeit a little late for me. 2017 Mazda BT50 (aka Ford Ranger) approx 4000 km from home in Melbourne (diagonally opposite corner of Shitsville) in Wyndham WA. In May 2021 (in between Covid lockouts and lockdowns) coolant loss, EGR valve that doesn't close, hot exhaust gases melts the PLASTIC intake manifold, catastrophic failure and the engine dies a horrible death. RACV Total Care to the rescue, car gets a piggyback ride home. $14k engine rebuild later and we're going again, awaiting the next beancounter vs engineer failure.

Is this the i4 2.0L sequential turbo or the i5 3.2L sognle turbo diesel? Technically both are Euro 6 since they have EGR/DPF and EGR . I'd be more worried about the 'glass based timing belt" snapping under load killing all the timing gear and cams with these engines. The 3.2L main issue is poor oil pressure regulation.

Hi from Ireland my 2.5 2008 izusu rodeo egr cooler is on back order it's weeping at the moment and crazy money, dealer says doesn't know when he'll get them, egr valve is £238, $440.00 ausi dollars, again crazy money.

When you see the "mess" some modern EGR valve equipped diesel engines get in the air induction systems you'd have to wonder if they are of any beneficial effect at all.

@Ktmfan450

2 жыл бұрын

You've got the nail on the head and then smacked yourself in the nuts on the down swing. Modern diesels are very efficient but require maintenance that not every d-head with $65000 to spend seems all that interested in keeping up with.

John, can you please contact me about this topic... I Had my EGR valve and some other EGR thing replaced by BMW cost me about $2Kish and then 3months later my car suffered a catastrophic failure and BMW said it would cost $7,000 to replace the turbo and seals. Do you think this seems fishy?

When I accidentally bought a Ford and needed to travel for work, I kept a EGR bypass plate in the trunk. That way when it blew 5 minutes after the part shop closed and only halfway there, I wasn't stuck going broke after progressively getting angrier For 12 hours to buy another BTW if questioned, I was off-road from the point I installed the bypass. They are kinda not DOT approved and not exactly desirable unless drag racing.

I found out my EGR was failing through a OBD2 scan on my BT50 -a good way to identify issues before they become problems.

@djmini2numpty141

2 жыл бұрын

which odd2 did you buy ?

@craigs902

2 жыл бұрын

Same I run a wifi obd2 sensor and use carscanner on my phone to monitor everything running on my VW van.

@djmini2numpty141

2 жыл бұрын

@@craigs902 brand ? looking for one for the triton :)

@markfromaus3438

2 жыл бұрын

@@djmini2numpty141 Carly. Works for most vehicles.

@fcres5845

2 жыл бұрын

Obd link mx+ - obd bluetooth adaptor. Runs thru your cellphone

hi ,When a vehicle is known for egr cooler failure at below 100,000km are we then obligated to change cooler at 100k service . Oh yea we will include inlet manifold clean out and injector spray pattern inspection . Yes u might say the car makers forgot to include these items in the service requirement schedule . Funny `bout that .

@nicktaylor7680

2 жыл бұрын

Yes Dealers /mechanics often feign ignorance (caught them red handed) they know they can make much more from a breakdown than doing preventive maintenance.

I had a 2011 PK Ford Ranger, after 7 years the EGR cooler went so was replaced. The main issue I had was I had to install another 4 EGR's and a new head over the next 2 years with no warranty help from anyone. Needless to say I no longer have the vehicle

Personal experience on the way to DPC....literally.... was heading to Collie WA for work... yep you guessed it 2013 Ford Ranger EGR had a poop! ..... The tow truck driver was laughing... it was his 3rd EGR Ranger for the week!

Not EGR, but DPF: I had two Mazda6 diesels. Excellent 175bhp engine (factory de tuned, so you can drive it like you stole it all day, every day), excellent auto box. I lived in abject fear of the DPFs, which would choose to regenerate at inconvenient times … and of course no warning light on the dash. Fortunately, I got away with those and never experienced DPF failure, but the same R&D argument stands. Have now vowed to never have another diesel. Not looking forward to the days of universal PPF though.

Hi John my 2019 bi turbo 2l ford Everest is getting a new motor after 5 time’s going to ford and then telling me there is nothing wrong with the car they replaced the thermostat but that didn’t make a difference… so now in the process of getting a new engine… all under warranty, The car never over heated or anything like that just used lots of coolant.

EGR and diesels are a recipe made in hell, all diesels have some particulate matter upstream of the DPF, that's why we have DPF in the first place. Unfortunately that's where the EGR taps off some exhaust flow containing tiny particles of carbon, the stuff diamonds are made out off, to feed back around into the inlet manifold. Another emission control system all engines since 1968 have had is Positive Crankcase Ventilation where oil mist laden crankcase fumes are sucked back into the inlet to reburn, all good, both systems work fine individually, but they don't play nicely together. The result is you have an oil mist based paste containing carbon being fed back into the cylinders clogging up manifolds, inlet runners and often finding it's way into the cylinders, this is basically valve lapping paste. The days of small high speed diesels are numbered, the higher repair costs and shortened life don't justify the added cost of the diesel in the first place.

@Low760

2 жыл бұрын

When they fail at 400,000kms in a newer small diesel engine from the valve seats recessing, it's not that bad..

Are EGR valves fitted to vehicles with the Adblue system?

@javic1979

2 жыл бұрын

YES

The cooler is usually the failure point. The EGR valves jam and block.

John, can you do a video on sedans, mid-large ones, some of us still drive them and love them. What are our options, just euro? I don’t want to drive an SUV or a 4WD ute, surely I can’t be the only one.

Great timing my egr has failed on my ford territory :(

Murphy's law is always invoked when you least expect it! Thanks for the heads up John!

Or you are VW, build the EGR cooler for the CFCA engine from alumium, which starts corroding to alumium oxide, which is corund. This corund gets sucked into the enginge and starts grinding from the inside. So much that the cylinder walls are damaged to a point where you need a new enginge. Well done folks!

@ethanmanz7631

2 жыл бұрын

Awwwh missed opportunity to say "Folkswagen" hahha

Fortunately my Mercedes 200d from the 1960s has never suffered from this failure.

As a matter of interest, how far is Dingo Piss Creek from Outerwhykickamoocow? No doubt there is a shot way and a long way, between the two.

@TheInvoice123

2 жыл бұрын

Just over the ditch

So Landrover must have the tightest bean counters.

My MUX had a failed EGR valve at about 160k on the clock within a km from the dealer. Reached it in limp mode. $1,000.00 repair bill. Lucky in a way.

Not every failure happens just outside Dingo Piss Creek. My mate's wife's old Peugeot 206's cam belt decided to snap on the way to work one morning. It snapped after she'd driven about 12 feet! She didn't even make it off the drive to the road!

Wish I knew this information earlier. I didn't even know what an EGR was or that my car had one until I took it in for a low coolant warning. They sure did the number on me, fixed one part of it and then the warning came on again a week later so I took it back and then they told me there was another part of the EGR that they had to replace costing more money again. I had also only recently replaced the alternator, battery and on that particular time they told me it needed a new harmonic balancer. I have spent all this money to be upkeep by the dealer for it only for 3 months later a warning that the car had entered restricted power mode and to take to the nearest service centre and only to got a mere maybe 1km down the road before smoke poured out the exhaust and lost all power pulling it over to the side of the road as quickly as possible. I thought the car had caught on fire! I had the car towed only about 5kms or less to the dealer to which when they had a look at it estimated without taking anything apart that it would cost a minimum $4,000 for the turbo and that's not including fitment or any seal replacements. total minimus said was about $7,000 and that's not including a full service. I think I need your help with this one John, Im no car person and I can't justify the expense. I just can't help but feel like I got the bumsteer with everything and so I gave up totally and just have a car sitting in my yard unregistered and uninsured because whats the point. I was unemployed throughout most of covid lockdowns. What do you think I could do to maybe remedy this problem?

@madmix6183

2 жыл бұрын

What sort of vehicle is this...

@voyeur4994

2 жыл бұрын

@@madmix6183 2011 BMW 320D was always serviced with BMW.

I have reason to suspect (?) that every Dealership has a larger than usual area set aside in its stores for EGR valves. Idling time has an inverse relationship to EGR sooting, in my experience.

Murphy was an optimist 😃

hi there, just wondering what are your thoughts on EGR bypass/delete in relation to the engine/diesel.

@AutoExpertJC

2 жыл бұрын

Bad idea.

@andyandrew6838

2 жыл бұрын

hi John may i ask why is a bad idea?

@ageraRable

Жыл бұрын

@@AutoExpertJC hey John you can't go around saying bad idea without giving a reason, 😉 . Been running a delete now for sometime , it's been perfectly fine

Towing up the North Face of the Eiger... I knew I like this guy.. dude

I'm sure you're not allowed to say this: EGR gaskets can be replaced with a blank... Highly naughty but makes total financial sense

@marty3469

2 жыл бұрын

Did it to my Navara D22 3ltr as well as cleaned the intake manifold, I just wanted it to not stuff up later on

@rmc489

2 жыл бұрын

@@marty3469 I did my 3.2 after the dealership had to replace the intake manifold because it was totally clogged, redesigned and everything.

strangely enough EGR valves are now failing by the shaft that open/close the valve..... the seal or shaft is wearing down and allowing vacuum to enter the intake (gasoline)

@AutoExpertJC

2 жыл бұрын

Yes - but at least that doesn't catastrophically fail the engine.

Local bloke here said to me he's had several Foton Cummings copy diesel motors die at a replacement of $15,000 ( warranty ) price a pop because the EGR cooler failure and has now decided not to sell them anymore.

I'm an Aussie engineer working in engine development for a truck manufacturer over here in the Netherlands. Most manufacturers are aware that the sulfur in Diesel fuel is still quite high in some markets . Unfortunately this leads to accelerated corrosion. Truck manufacturers typically use cathodic protection on the EGR cooler in markets with shit fuel. Most passenger car manufacturer still don't add this, I guess it's an added $4 cost. EGR has many benefits as you suggested. Adding EGR will lower the P3 pressure reducing the pumping losses providing that the VGT turbo is sized correctly. Varying the amount of EGR also allows the turbo to operate in its most efficient region. There's also other benefits such as reducing the cylinder pressure rise rate. Most tuners will disable this and then the customer wonders why their cylinders are scuffed leading to compression loss. It's a bit of a trade off with the EGR. Too little and your exhaust temperatures get too high at higher loads and you create way too much NOx. Too much and you end up with high CO and particulates and potentially THC if the combustion is really bad.

Which engine is prone to the EGR failure in the Everest? Is it the 3,2L diesel or a different engine? If it is the 3,2L diesel, does this problem apply to the Ford Ranger as well?

@colincameron6263

2 жыл бұрын

EGR failure is a modern diesel issue. I recently rescued my neighbor after his Hyundai Santa fe had an EGR failure costing him thousands. JC would never mention such a failure in an unbiased way.

@YZJB

2 жыл бұрын

Yes the 3.2 is famous for EGR cooler failure

Good advice, research a particular used car strengths. That's a good reason to buy a used car, it's cheaper and you can see if it's generally been a reliable car.

All of the theory suggests that EGR increases efficiency. But in reality it seems to be the complete opposite. In the real world testing that I have done, my engine consistently consumes 1 to 2 Litres per 100km more fuel when the EGR is operational, compared to when the EGR is disabled. Intake air temps (as monitored on a scangauge) also go through the roof when the EGR is dumping the engines farts back into the intake.... I understand the environmental reason for EGR. But it seems to me that over time when the engine has choked itself up with crap, the environmental benefit is going to be no longer existant. The engine is not going to breathe properly due to a clogged up inlet manifold, the EGR won't operate properly as the valve will be blocked up with soot, and the engine will be generally running with poor efficiency and subsequently burning more fuel - the complete opposite of what we should be aiming for to reduce fuel useage and subsequently reduce emissions. EGR seems to me, to be a really crappy system and more trouble than it is worth.

@boatbeard7767

2 жыл бұрын

EGR systems are nothing to do with making engines more efficient, they are for keeping people healthy while making engines more frugal by running them lean...

@danbywaters6123

2 жыл бұрын

@@boatbeard7767 efficiency and frugality go hand in hand. And the environmental benefits of EGR go completely down the shitter after a few years, as the engine gets choked to death by a severe buildup of crap. DPF's and SCR systems on the other hand, do an excellent job of reducing pollution, with far less troubles.

@andys31337

2 жыл бұрын

Dan are you sure your engine is not running too lean without the EGR? if the computer thinks the EGR is open its assuming a certain % of recirculation contains some useful amount of fuel

@danbywaters6123

2 жыл бұрын

@@andys31337 there is no useful fuel in spent exhaust gases. If the engine is running properly, all fuel will have been burnt off during the combustion process. EGR is designed to starve the engine of oxygen. And even if it were to run lean, this is not going to hurt a diesel. Running rich can damage a diesel - the opposite to a petrol engine.

@andys31337

2 жыл бұрын

@@danbywaters6123 damn, you are right, I saw this on Wikipedia: In 2002, "introduction of cooled EGR were associated with a 3% drop in engine efficiency"

In my experience an EGR failure rarely fails entirely. You can smell it burning coolant before it goes entirely

my 2013 turbo diesel Craptiva I bought new did this in 2015, I assumed it was covered under warranty but Holden said no. So I sold it and swore to never buy another Holden again

Off-topic, but is that a new camera or are you experimenting with new lighting/colour grading?

@AutoExpertJC

2 жыл бұрын

I dusted off my old Canon C200 for that shoot. Usually shoot the prompter shot with a Panasonic GH5s and other stuff around the studio and on location with a Sony FX3

Everest is just SUV version of ranger, does ranger have the same problem?

@AutoExpertJC

2 жыл бұрын

Yes.

EGR valve just seized in 2015 Ranger @ 133 000 km. $1400 to replace and fit at Ford Service centre.

The modern day engine killer. You should see the havoc it creates in a modern day transport companys fleet, better off just bypassing/turning it off in some cases

My LDV G10 van is now sitting in my garage not being driven after waiting 6 weeks to get the timing guides replaced at 160000 Klm and paying $5500 for that I have now had to fork out another $3000 to have the EGR valve done What pissed me of I told the mechanics that service it that the timing could go at 110000 Klm because a colleague of mine had his go at that distance but they didn't believe me But I only found out after that the EGR can fail at around the same distance in my case 160000 Klm so in most cases with LVD's you need to keep this in mind Having said that the vehicle itself has been very reliable I have mates who have just bought a Mutsubishi and Hyundia van's and I have asked them to let me know when they stuff up so I can compare them

The Ford Everest. Great name for a vehicle that breaks down at base camp! Ford's hopes and dreams again?

I'd be interested in your thoughts on the Ad Blue dilemma, if they can't get the additive, can the vehicle still be driven without it? Does it really do that much to air quality that they can't switch it off for a while? Given the alternative of mass panic buying and empty supermarket shelves because 60% of heavy transport has to be benched. To say nothing about other essential workers, tradies etc whose vehicles use the stuff?

@AutoExpertJC

2 жыл бұрын

By law the engine is designed to be inoperable without it, but there's no engineering-type reason why it couldn't run all day long without it. It's a completely regulatory interlock. Of course, they would make more NOx in that state.

@aslkdfjhg

2 жыл бұрын

Friend ran out on a 4wd trip, truck goes into limp mode. Lucky a passer-by had a bottle.

@Spacegoat92

2 жыл бұрын

@@AutoExpertJC What do ya do?? It's lose lose isn't it?

@batmanlives6456

2 жыл бұрын

Start pissing into the adblue bottles All it is - is piss Serve us right for being so bloody dependant on imported goods We could make urea here in Australia It’s not bloody rocket science !!!

@Spacegoat92

2 жыл бұрын

@@batmanlives6456 I usually take plenty of beer on my trips so I can definitely accommodate...

If we had better NOX management, would could lean burn Diesel and get much better fuel economy, but by how much?

What the Frick is an EGR! Never heard of it. Is it anything like a broken fret. Please explain John.

@scroungasworkshop4663

2 жыл бұрын

Brenton, Brenton, Brenton, you need to pay attention when in class grasshopper. Now go back to 1:25 and all is explained.

@brentonl1746

2 жыл бұрын

@@scroungasworkshop4663 Sorry busy looking up the girls skirts at that bit!

@scroungasworkshop4663

2 жыл бұрын

@@brentonl1746 😂😂😂😂😂😂😂

We do a lot of Holden craptiva blowing head gasket because of EGR cooler failures

@AutoExpertJC

2 жыл бұрын

Worst SUV ever...

@formulafish1536

2 жыл бұрын

What GM saw in that shitheap I will never know...

@dilipshashank3

2 жыл бұрын

@@formulafish1536 Money for service department

@dtengineering1

2 жыл бұрын

@@formulafish1536 Due to link between Daewoo and GM, Holden ended up with a lot of their products. Cheaper to manufacture than vehicles from Europe. No wonder Holden is gone. I worked at a car dealership when Daewoo was a brand on it's own, they were cheap and they were rubbish.

@AutoExpertJC

2 жыл бұрын

When GM bought Daewoo, there was only one direction it could go...

Sounds like the Ford Everest R&D testing is done by the Citizens in Shitsville

@AutoExpertJC

2 жыл бұрын

Yeah - guinea pigs or final validation engineers. Either/or...

Would'nt this be a good time for Ming Moll stock footage?

@AutoExpertJC

2 жыл бұрын

When is it not?

@TonyWhite22351

2 жыл бұрын

@@AutoExpertJC Hi John , nice to see you monitor the comments ! Love your work m8 !

The stupid thing about EGR systems is that they're disabled at full throttle, but their contribution to choking the intake tract eventually causes drivers to use full throttle more often, thereby disabling the system that caused the very problem the driver is often forced to try and overcome. IMO, engineers could have tried harder to reduce emissions without feeding engines their own waste. For example, use a more efficient turbo or a proper sized charge air cooler to keep combustion temperatures down. Anyhow, I deleted my entire EGR system in 2006. No regerts.

I say to my students" built to a price not a purpose" because of the bean counters.

My understanding is that it's not the EGR valve that fails, it's the gasket that fails.

In the Ford Everest and Ranger the EGR valve and EGR cooler are two separate (but obviously related) items. Both can fail in different ways. A failed egr valve usually throws an engine fault light on and may put the vehicle in limp mode. The egr can get stuck open or closed and can have electrical circuit failure all of which can be picked up by the pcm. An EGR cooler failure is more of a concern as this is where you will get coolant lose and yes in rare cases if left unchecked for some time it can lead to catastrophic engine failure from overheating. Replacing the EGR valve will do little to add to the long term reliability of your Ford/Mazda engine. Replacing the EGR cooler and closely monitoring your coolant level and condition is wise.

Would a good quality oil catch can help with egr issues stopping the oily muck going back into the system?

@AutoExpertJC

2 жыл бұрын

Oily muck is more a PCV thing - but that's not without risk also.

Hi Scotty. Oooops. My very recent post appears to have omitted the KZread link. @

I get sick of telling people there installed for a good reason. "Just blank it and map it!" "Knock the DPF out as well" You can't tell some people

Audi 2.0 4cyl EGR valves fail early. Replacements expensive & made with Chinese junk material diaphrams which dissolve in oil vapor. Just a head banging situation, thanks again China. Easy to spot, as filler cap is getting sucked back on hard during idle. Others likely not much better.

@timcollins380

2 жыл бұрын

Diesel or Petrol?

Ha! My company drive, a '17 Ranger, I picked up it was losing coolant so off to the local Ford dudes. No worries they say! They all do that! The service manager said just one day in Sheep shaggerville aka NZ, easily 10 or more fail completely and seize within seconds. I'm was a close run thing. Lucky I don't have to pay for it ffs.

Can I put all the Bean Counters up against the wall when you're Primincer?

What are your thoughts John, on those that support and call for EGR deletes on 4wd vehicles. What are the legalities of doing this. I was looking at an 80 series with egr delete kit fitted. I spoke to a rwc centre and they claimed that there are no compliant notes/rulings on them.

@rustymozzy

2 жыл бұрын

It might not explicitly be a compliance requirement in itself, however the effects of removal will likely cause non compliance of emission requirements.

@rustymozzy

2 жыл бұрын

By the way, it's totally illegal to remove emissions controlling devices. The car is no longer roadworthy as it fails to comply with the ADR that were in place when the vehicle was initially complied for use on the road network. This voids registration, and insurance, and leaves the owner and installer open to fines and potentially jail time... but hey, some person at the rwc said it was okay, even though a simple google search will bring up the legislation that says differently.

Nissan Patrol 3.0 owners here getting Vietnam war style flashbacks right now.

@gcbification

2 жыл бұрын

Oh yeah, EGR does a horrorshow job on the inlet tracts in those =/

I've got a 2016 santa fe, which had its egr replaced under warranty at something like 80k km. Now approaching 160k, and out of warranty, and the same sooting and fuel economy decrease is happening again... Time to put in a blanking plate.

@davidgallahar4587

2 жыл бұрын

0

@wyattfamily8997

2 жыл бұрын

Past time.

2013 BMW X5 40d 141tkm and I had to change egr+2 egr radiator 1 641,92 EUR😂

Gee, I thought EGR meant Everyone Goes Racing?

@aussieideasman8498

2 жыл бұрын

I thought it was plastic auto parts made in Brisbane.

These are things Toyota FJ Cruiser drivers (statistically at least) never have to worry about. Old school petrol V6, yes. Reliable? Absolutely. 😎

@AutoExpertJC

2 жыл бұрын

And they like a rev...

@samboelliott1

2 жыл бұрын

@@AutoExpertJC Sounds great when it does too. They like a drink too. Petrol is cheaper than broken bits though.

Caterpillar had a better EGR system, theirs caller CGI(clean gas injection). The only downside was the packaging,. Basically instead of taking hot dirty air before the turbo and putting it back after the turbo on the intake. They instead took the exhaust after they dpf, and then put it back into the intake before the turbo. So many less failures compared to a normal EGR system which can be a bullet to an engine if the cooler fails.

@turbostyler

2 жыл бұрын

That's actually super clever on many levels. First is getting the EG post DPF, then the best bit is putting it into the turbo intake negating a need for a cooler, as the intercooler would take care of that. The only issue is that it would most likely clog the intercooler, but that's way easier to clean/replace than egr coolers.

@AnarchyEnsues

2 жыл бұрын

@@turbostyler kzread.info/dash/bejne/pWp_uJOamK_LXaQ.html

Everything said is absolutley accurate but I will be picky on one bit. Not all systems incorperate the EGR valve with the EGR cooler so its not the EGR you have to replace. Now Ford have a proven track record in this fault and it started with the introduction of the new range of diesel engines fitted to Rangers and Mazda BT=50's from 2007. The heat exchanger for the EGR would crack and coolant would be lost and engines would fail if it was not picked up. Now we have thousands of these vehicles out there in used car land and some still have the original heat exchanger and some have had it replaced but by far the norm is that it has ben removed and the EGR system disconected. We only have one state I think that has mandatory annual inspections that would pick up this illeagal modification but as I am part of an old Rangers club I can tell you that many NSW vehicle inspection places turn a blind eye to it. So there you have it poor design leads to wide spread removal of emmission systems that in most cases is not picked up. Of course all this aligns with us being the dumping ground for all the most polluting superceded models anyone makes. The government does not take emissions seriously so why should the average punter and all this means out kids get to breath some very toxic crap that they should not have to. Lets hear it for all of us Ausies, we are worried sick about the slightest increase in fuel prices but we are quite happy to drive guzzling beheamoths to and from the shops belching heaps of crap into the air we have to breath and if the emmissions system plays up we disconnect it.

Maintenance is cheap, engines are expensive. Too many people don't understand that concept when it comes to their vehicles and put off the preventative work that should be done.

@AutoExpertJC

2 жыл бұрын

Totally agreed, Scott.

@javic1979

2 жыл бұрын

@@AutoExpertJC The issue is there is no fixed life of the EGR cooler. some only last 5000km and some get 1 million km before it leaks. D max has both EGR valve ($5000 a pop) and cooler fails. amarok 4cyl EGR valves don't give any issues but the coolers can hydro-lock the engine just after starting, but the cooler failure itself is below normal. bt-50 and ranger older 3.0 and 3.2 suffer cooler issues and sometimes hydro-lock (3.2 below average, 3.0 above). older 3.0 EGR valve issues were very common (dealers would tell customers to ignore the check engine light after the 2nd fix)

In summary, if you go to dingo piss creek, just go with and old car … no funky valves

Being a crusty old boomer I will stick to my 94 Isuzu diesel. No computers, egr whatever. 502,000 trouble free ks.

I think the best pre-emptive strike with any car with a known problem like that is to, well, f**k it off and get a better one.

@AutoExpertJC

2 жыл бұрын

That's always effective. Handball the problem. With romantic partners, too, in my experience. Always upgrade before they go wrong. But do lots of test drives first.

Found the shot a bit confrunting. Still good content.

Bigger than life, and powering through the focal plain....(un)fortunately, my daily drive doesn't have EGR =)

@AutoExpertJC

2 жыл бұрын

Does it have a carburettor?

@gcbification

2 жыл бұрын

@@AutoExpertJC No -- EFI nissan RB30 in a '89 R31 Skyline ; I believe the carby versions had EGR system fitted however.

Lack of maintenence. That is all. They need periodic cleaning, but nobody does it. I mean in general.

John, you've got more than a bit of Dicky Knee going on.

This is why I'll only buy a car from companies that understand total cost ownership, i.e. spending 10c extra on a component that saves $5000 down the line.

@fcres5845

2 жыл бұрын

Which car, model?

What is a head gasket John? Is it what doctors have to change when they have to do brain surgery? Haaa haaaa.