1GD-FTV EGR & Intake clean

Turbo, Manifolds, Exhaust, Intercooler, Internals etc

1GD-FTV EGR & Intake clean

Postby buck972 on Mon, 23 Oct 2023 7:18 +0000

After stupidly using so call DPF safe intake cleaner, this had less than ideal results, for those with a DPF - DO NOT USE as this will essentially just block your DPF as I have found out the hard way,
So now I Have just finished a complete Intake clean, this is the full EGR & intake off the head, this was quoted at around $1700 to do & after doing I can see why, none of it is easy to get to, it is not for the feint hearted or non-mechanical folk, its a total %&$#@ of a job....
I will say though now it is done I am glad I done this as
1, know a lot more about the 1GD-FTV & where things are & go
2, There was only a little carbon build up in the EGR system, a lot less than i expected, but the intake manifold was caked with the horrible black sludgy Sh#t, this stuff is terrible and hard to clean, but there was a lot of it the flapper valves on the intake manifold were all blocked up and the head had a lot in the ports, this was all removed.
All gaskets were replaced and the critical fasteners torqued to spec.
now the engine does seem peppier, I have had the EGR tuned off in the ECU when it was tuned & run a Catch can so this should never happen again.
Now need to do a Regen on the DPF (DPF full on dash) & hopefully all sorted and get some improved fuel economy.....
I will post some Info , Pics & details on the clean soon for those wanting to do.
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Re: 1GD-FTV EGR & Intake clean

Postby buck972 on Mon, 30 Oct 2023 1:52 +0000

Regn completed with SG2 worked a treat, and then an oil change

- after a Regen its recommended to do an oil change, a forced Regen adds fuel and this can get into your oil causing oil dilution, my take is oil is cheaper than an engine replacement / rebuild
- Use the correct grade oil specifically suited for DPF suitable oil (C2) full synthetic, a lot mineral oil will destroy your DPF quick smart, I personally use genuine oil from Toyota but I am sure there heaps of equivalents if not superior oils available.
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Re: 1GD-FTV EGR & Intake clean

Postby Gipsy on Tue, 31 Oct 2023 4:42 +0000

Correct me if I'm wrong but doesn't a regen fire an injector in the exhaust dump pipe? How would that get into the sump? Are you confusing the egr clean? Either way it shouldn't affect the sump oil. Suggest you read this article especially the explanation of how dpf works.

https://www.drive.com.au/caradvice/toyo ... d-to-know/
Cheers Gipsy :D although I'm sure somebody will challenge that :lol: even Einstein wasn't certain of his theories.
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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Re: 1GD-FTV EGR & Intake clean

Postby Eninja on Tue, 02 Jul 2024 4:40 +0000

Any updates or photos from anyone recently done an intake clean? Mine is reaching almost 300k kms and dreading what the intake manifold will look like.
I did one years ago on a Triton with 170k km and remember chipping off 3mm thick carbon crust from every surface of the manifold - the internal diameter had been reduced by 6mm and reducing airflow if you think about it.
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Re: 1GD-FTV EGR & Intake clean

Postby bloke&tackle on Thu, 26 Sep 2024 7:06 +0000

Has anyone blanked off the EGR on an N80 yet. Is it possible? My old N70 has a blanking plate with the 6mm (or maybe it was 7) hole, no more clagged up manifold.
Regards Chris.

I started life with nothing, and I've still got most of it left
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Re: 1GD-FTV EGR & Intake clean

Postby ptommo59 on Fri, 27 Sep 2024 8:45 +0000

Gipsy wrote:Correct me if I'm wrong but doesn't a regen fire an injector in the exhaust dump pipe? How would that get into the sump? Are you confusing the egr clean? Either way it shouldn't affect the sump oil. Suggest you read this article especially the explanation of how dpf works.

https://www.drive.com.au/caradvice/toyo ... d-to-know/


I believe you are correct for the Toyota diesel engines i.e. fuel is injected outside the cylinders so not an issue but on many other brands they use the after inject period to inject fuel into the cylinders with the exhaust port open to get the required temps in the DPF for a burn. This can wash down the cylinder walls past the rings and part end up in the sump. which is why the 4JJ3 isuzu engines {plus probably others) have a oil dilation estimate and/or oil level monitor to trigger a warning if it goes too far or overfills the sump.
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