DPF and white smoke

[cuda]

My MY16 2.8 65000km 1 owner full Toyota service started doing the same thing today. Not at all impressed for a vehicle that cost just under $100k and is not yet 2 years old. Had heaps of issues with this vehicle, not likely to buy another Toyota. Overrated and over priced.
So glad to read all these comments to prepare myself for the confrontation with my dealer tomorrow.

What other issue have you had?

[Matt73]

My MY16 2.8 65000km 1 owner full Toyota service started doing the same thing today. Not at all impressed for a vehicle that cost just under $100k and is not yet 2 years old. Had heaps of issues with this vehicle, not likely to buy another Toyota. Overrated and over priced.
So glad to read all these comments to prepare myself for the confrontation with my dealer tomorrow.

[adrian5800]

I think he meant it $1400, $14k is price tag for a brand new engine.

Yeah never let the truth get in the way of a good story..
$3k is nearer the mark

[ExNissan]

Hi Bear63,
what kind of km are you seeing these Hilux/Fortuner/Prado's present with the DPF port blockage?

[Bear63]

Is it something that can be done at home or is it a big job

You could do it at home as long as you are able to do a forced regen after wards as well , on a side note had another one this afternoon , similar kms as all the others the regen is the longest part of the job

[prodoco]

This video by John Cadogan may be of interest for those suffering problems with their DPF. $14,000 to replace a DPF on a Hilux, I wonder how much for a Prado?

https://www.youtube.com/watch?v=-bOlDFFhuPM

I think he meant it $1400, $14k is price tag for a brand new engine.

[Hally]

Well we had another Hilux in today with a blocked DPF injector port totally blocked , so as i have said before , get that checked , if it cant inject the diesel to do the burn properly , nothing will happen

Is it something that can be done at home or is it a big job

[Bear63]

Well we had another Hilux in today with a blocked DPF injector port totally blocked , so as i have said before , get that checked , if it cant inject the diesel to do the burn properly , nothing will happen

[Rainman]

This video by John Cadogan may be of interest for those suffering problems with their DPF. $14,000 to replace a DPF on a Hilux, I wonder how much for a Prado?

https://www.youtube.com/watch?v=-bOlDFFhuPM

[CamJam]

I asked to keep the old DPF for exactly that reason but got told it's a requirement for them to keep it so they can send it off for testing

[JohnLynn]

Yes I would do just that if it were me that had the DPF changed! I am chipping in with comments and questions on this thread as I find the subject very interesting and want to know more. Luckily for me so far my manual GXL hasn't suffered from this issue or had any update, by following the manual burn thread parrot fashion I have been monitoring my exhaust temperature and burn % etc which looks fine.
There is a website dedicated to the colour of diesel smoke called dieselsmoke.com.au It lists black smoke as being caused by "incomplete combustion" blue smoke caused by "burning oil" and says that white smoke is caused "when raw diesel comes through the exhaust completely intact and unburned"
Like you I am not sure that I agree with this either.
In my experience with older engines, pre modern electronics which should limit the amount of fuel injected to the quantity that can be used, black smoke is usually caused by an overload.
Showing my age now I can remember leaning to the side of a tractor engine and pressing the cold start or excess fuel button for a laugh. The tractor would belch black smoke until the governor came back up to speed and released the button.
Blue smoke used to very common on starting a large marine diesel. These had huge boost pressures to get as much power as possible and a consequence was that they were very low compression ratio for a diesel. Our local harbour used to be filled with blue smoke when a couple of boats were cold started at the same time. A Cummins marine engine that I still have uses powerful electric inlet manifold heater elements that help reduce this effect before the engine come up to temperature.
White smoke is the colour that I have no experience with until reading the comments on here. Sorry if I have bored you with tales of how things were when engines had "proper" mechanical injector pumps.

[brogers]

Yes I agree, as I thought $1445 seemed cheap at Toyota's prices for a unit so as above TMC supplied the unit and the dealer claimed $1445 for fitting it.
I am very interested in what happens to a DPF when it fails, I think we all agree that white smoke is caused by raw and unburnt diesel which suggests that the injected fuel isn't burning in the filter. The autoignition temperature (not flashpoint) for diesel is just over 200C and the temperature of the filter is around 300 in normal use according to my torque pro so why is it not igniting?

Hey JohnLynn, why not ask them for your old DPF and take to it with a hack saw, and have a good look inside...i recon it would be worth a squiz...because something is going wrong in that darn thing that's for sure.

I'm not sure I agree that the white smoke is unburnt diesel, didn't the red arrows say they make white smoke by burning diesel in the hot exhaust. I recon its burning diesel alright, and hence the smoke, but I'm not sure if its burning it properly..ie if teh diesel might be soaking into the DPF and at some stage there's just too much diesel getting burnt...or something like that...who knows. I do know that it's going to be a pain if they don't work properly.

[JohnLynn]

Yes I agree, as I thought $1445 seemed cheap at Toyota's prices for a unit so as above TMC supplied the unit and the dealer claimed $1445 for fitting it.
I am very interested in what happens to a DPF when it fails, I think we all agree that white smoke is caused by raw and unburnt diesel which suggests that the injected fuel isn't burning in the filter. The autoignition temperature (not flashpoint) for diesel is just over 200C and the temperature of the filter is around 300 in normal use according to my torque pro so why is it not igniting?

[120D4D]

Knowing OEM pricing I'd say the $1445 was labour and consumables only. No doubt TMC supplied the dealer with all the required parts.

[CamJam]

@CamJam was your invoice split to show the different costs of parts and labour? I am interested in how much a DPF unit would cost.

No, it wasn't. At least, I didn't see it - but the total was $1445. The copy I got to keep (as opposed to the one I had to sign for) has NO CHARGE against it all.

I don't know if it'd cost us $1445 - but that's what I was told would be charged/ sought from Toyota.

One other thing today - for the first time in about 20,000km's I have actually smelt the car after a DPF burn. I hadn't noticed before that this smell was actually missing from my life, until I smelt it again. Seems odd.