Prevent EGR troubles?

You mean "newer" rings in general? In third gen, the last year (2015) rings are supposedly the cure for oil consumption, according to the tsb. I'd really like to see a review of the two ring sets, comparison photos.

2010~14 piston ring set part number: 13011-37110
2010~13 piston part number: 13101-37120
2015 piston ring set part number: 13011-37260
2014~15 piston part number: 13101-37240
2016/17 piston ring set part number: 13011-37270
2016/17 piston part number: 13101-37250

I looked up 4th gen pistons and ring sets too, @Ragingfit mentioned that 4th gen ring set as well would work.

 

We'll see. I was referring to most all car engines made in the last 10 years.

I am skeptical of all newly introduced products and remedies.

 

Understand. Just get the sense they back pedalled a bit with the 2015, as oil consumption reports started piling up? Again the tsb for repair due to excess oil consumption involves putting in 2015 rings and pistons.

No trivial task, theoretically 16~ hours labour, though I wonder what the reality would be. The engine removal instruction references myriad Repair Manual sections, which I didn't check, but looking at the parts list, the implication is to pull the engine AND transaxle. This seems like overkill, I'd think it's easier to just separate the engine from transaxle and pull the engine, per @Ragingfit 's videos:

Swapping in a Gen 4 Prius' 2ZR Engine into the Prius v | PriusChat

It's a Prius v, but the principles are the same.

(I'm slowly working myself up into a lather over this. And I've got 78K kms, and zero consumption.)

 

I'd trade in the car before I'd do the ring replacement. In the meantime, I'd lessen the mileage between oil changes and install and monitor the OCC. What you see in the OCC is a good indicator of the condition of the piston rings and cylinder walls.

 

Dump in a bottle of Techron 4 times a year.

Easy.

Done.

And 8 or 10 yrs from now, if my Prius Plumbing is plugged, I just buy a new car. (Or I will be dead. One or the other.)

 

4th gen has a better EGR design, and I'll wager better pistons/rings. If it didn't look like a deranged, kicked-in-the-butt Pokemon, with an obscenely gargantuan touch-screen dominating the dash, eating up more and more functions, and expanses of porcelain-white trim, it'd be pretty nice car.

 

I'll pass, too, for the same reasons.

I'll wait until 2023 and will likely get a full BEV with no ICE.

 

Wow, reading all of this is disheartening. I just got out of a diesel for all these reasons, and went with a Prius to get that Toyota "appliance reliability".
It looks like I made a mistake.
I'm beginning to think the only answer is to buy an older car and rip out all the emission components.

 

Hey guys? I think I found the sales pitch for the Corolla Hybrid...

 

Emission components on older vehicles tend to less problematic? I definitely wouldn't rip out anything, especially if it's not problematic. I took a look at our previous 06 Civic's EGR, it was a simple contraption, about the size of a fist, and the inside was just a little sooty.

 

The Prime doesn’t look that bad:



Aggressive .

 

Think that's bad, just wait til you read up on inverter failures.

 

Has anyone considered modifying the EGR cooler by removing or expanding some of the internal baffles?

Positives would be less internal restriction that allowed the cooler to continue to operate when it would otherwise to get plugged; negatives are that cooling capacity would be reduced.

 

Nah, don't go there, near impossible, very impractical. That thing HAS to be water-tight, and is counting on the radiator to cool exhaust gases. It'd be like working on a boat in a bottle, after it's in the bottle...

Just get used to cleaning, say every 50K miles? The first time is the hardest.

 

It’s like riding a bike after that.

And if you get good at it, you’ll help others too.

 

How clean should these be, can you shine a light in 1 end and see it through the other and is oven cleaner still the best solution to clean with.

Posted via the PriusChat mobile app.

 

Keep an eye on the EGR tube condition, probably redo every 50K miles?

I'll probably redo every 50K kms, it keeps me busy. That is if I ever get there...

I like Oxi-Clean for the cooler, easier on the hands. For the pipe and valve: carb or brake cleaner. For sure don't use Oxi on the valve, since it's aluminum: it might not harm it but I think it would really dull the finish.

I don't have a pressure washer, but I've heard that's a game changer. I'm ok with life in the slow lane though.

 

..so you like it then I gather?

 

EGR on my mom's 1979 Colt would be clogged every time you turned around.

The EGR valve on my 1984 Bronco II was kind of ok, but the position sensor on it had a way of drifting out of calibration. It was replaceable separately (just sat on the valve with three screws) but not as cheap as you might want for flaking out as often as it did.

 

How about a local DIY car wash? Those are like every few blocks here.