Gen4 EGR fate?

It will take years before my 2016 gets enough miles to check it out. By then the answer will be found by someone else, sorry I can't help you.

 

New and improved iirc, hopefully won’t be an issue

 

I had a mark but they got rid of their 2016 at 93k miles .

My inquiring mind wanted to know and I was willing to help.

 

They sold it for a vw diesel.

Something familiar to them .

But if there is someone in Nor Cal or in northeastern Pennsylvania with a gen4 at around 100 k miles, my offer still stands.

 

Hi everyone I'm new to this forum but thought I should share my experience. one of our car had problem with EGR(rattling noise on start) but managed to get it changed under warranty from local toyota dealership. Technician informed me that this is the first 2016 Prius they have changed EGR valve. Also mentioned that it took them 2 hours longer to change because they had to remove the inverter which they were not aware off. Anyway job was done under warranty and since then everything is fine except 12v Battery.

 

How many kilometres have you done?

 

That's the Surrey south of London I assume. We've got one just to the south too, lol.

With third gen there's a stainless steel pipe running from the EGR valve to intake manifold, that was relatively easy to remove and inspect. It served as canary-in-the-coal-mine for a lot of DIY'rs. Maybe some 4th gen DIY'rs can see if there's similar pipe on theirs, inspect it and report condition?

On 4th gen, pretty sure it's the item I've highlighted in gold:

 

Not good news

 

70000 Miles

 

Hi yes I live in south of London and I have been dealing with Prius for the past 10years mainly with Uber drivers thats how I get to learn and trouble shoot Prius problems.
You are absolutely right about the EGR pipe mentioned in picture, to be honest I haven't checked this but I can confirm this next week. We get 5years 100000miles warranty on prius therefore until then I never touch the car. Once its out of warranty then its all mine. Right now we have more serious issue of mouse infestation with Gen4 Prius and Yaris Hybrid 2014 onwards.

 

I think you're entitled to loosen a bolt or two, it's your car. That said, I can understand your concern. A really good case for your argument, would to not open the hybrid battery back prior to warranty expiration.

But that pipe, they will never know. Wear gloves; leave no prints, lol.

 

Yes, that’s the EGR pipe assembly (25610-37020). It’s attached at each end with two flange bolts (91551-J0616), torqued to 8.5 N·m. The EGR inlet gasket (25628-36020) at the intake manifold and the EGR pipe gasket (25634-37020) at the EGR valve assembly are non-reusable. The Repair Manual (more info) cautions that the claws of the latter gasket must face the EGR valve assembly.

Parts catalog references: 17-01, Manifold; 25-01, Exhaust Gas Recirculation System

 

Are third gen gaskets deemed not reusable as well? The connection at EGR valve is very durable metal gasket, and at intake manifold some sort of flexible plastic ring. I've had it off four times or so, no problems.

 

Yes; the Repair Manual for 2010 describes each gasket as a “non-reusable part.”

 

My gen 3 the egr dumped into the valves from the top, so there is a problem, my gen4 as the picture shows dumps in on the side, so, is an oil can required?
I had assumed not, but, this thread is enlightening.

 

You're right. And I had the answer at my fingertips of course.




In reality gasket #1 "could" be deemed non-reusable, being resilient plastic of some sort, but it seems onerous to also apply the label to gaskets #2 and #3, which are plain metal, not even coated, IIRC.

Gen 3 and 4 EGR inlet to the intake manifold is roughly similar I think.

 

[QUOTE="Mendel Leisk, post: 2853948, member: 69191]
In reality gasket #1 "could" be deemed non-reusable, being resilient plastic of some sort, but it seems onerous to also apply the label to gaskets #2 and #3, which are plain metal, not even coated, IIRC.
[/QUOTE]
Maybe they are crushable metal, a bit like sump plug gaskets, they don't use those again.