120K Service - Sanity Check Shop's Recommendations

All that is not out of this world The transaxle fluid I think is maybe considered permanent but hell what is permanent for the car apparently around $150,000 mi smart intelligent people will be out of a generation 3 and on to a new car payment maybe a new sienna hybrid because they've got a kid now or something of the like Toyota's today aren't made to go $350,000 miles or better at least the Prius generation 3 certainly is not generally speaking in a normal sense of the word If you're running a taxi cab or constantly in the wind with Uber eats and that sort of nonsense you have a very good chance of making $385,000 mi That's the car never sitting until Sunday every week 52 weeks out of the year I don't know many people that run like that except for cabs and the crazies during the pandemic our car made 360 or 376 they're under those conditions our 2013 persona failed miserably in blue and engine head gasket etc at you know 180 90 somewhere in their thousand normally for the last 45 years that I've been with Toyota I have never seen anything happen at 180 or 90,000 miles other than regular maintenance schedules or not so there's always that so in my eyes Toyota took a dump on me with a generation 3 and they will never be trusted again without full due diligence on my part which I didn't have to do until this model I could just go pick up a Corolla a Scion XA whatever any of that kind of stuff back in the olden days and not have any issues 2010 seemingly all the silly issues have started with all of Toyota in general they've become planned obsolescence and are very Americanized now they are not the Toyota t o y o d a that many of us might have grown up with or at least I did so they can no longer be trusted they are like the folks on some of the other side of the aisle now and grandios lots of television that sort of thing.

 

You’re talking yourself into head gasket failure; better get on it soon.

Nope, according to Toyota USA it’s 150k miles or 15 years, whichever comes first. The Toyota USA Warranty and Maintenance Booklet is a VERY tricky read on this, follow the postscripts.

to be fair, Toyota Canada recommends to change coolant on both, at 10 years or 100k miles. Funny thing: on the inverter coolant reservoir of mine, there’s a US spec label, saying don’t change till 150k miles. No mention of months.

Repair Manual has a non-Techstream instruction; see my signature. On a phone turn it landscape to se signature.

Maybe do change, sooner than later. Ditto for inverter coolant pump. They have proven failure prone around these miles.

I would do this, at least once. See my signature.

Why not, takes about an hour, easy DIY. I’d recommend to disconnect throttle body and lift off the intake manifold (leave coolant hoses connected), to clean more thoroughly. Do in conjunction with the EGR? Torque specs are quite low, see intake manifold attachment in first link in my signature.

 

Myth, unproven, unsubstantiated.

 

You can buy the water pump impeller from Amazon or eBay for $25 to $30. You should also buy a new water pump gasket.

 

The only part I’d consider replacing is the cooler, and the longer the cleaning has been delayed, and accordingly the more carbon-choked the cooler, the more necessary this would be.

I did a first EGR cleaning around 65k kms, and a second (fall before last) around 90k. We don’t drive much, I’ve got lots of time, and at least in part it’s my science experiment.

I learned a lot the first time ‘round, and forgot a few things too, lol. Anyway, second time around, knowing that the cooler is by far the biggest cleaning chore, I made a point of getting it out and filled with a water-based carbon-busting solution, plugged and propped up in a corner of our laundry sink.

set a timer for an hour, then carried on dealing with EGR valve and pipe, and the intake manifold and ports in the cylinder head.

each time my alarm went off I flushed out and replenished the coolers solution. By the time I was into reassembly I’d done about 5 cycles thus with the cooler, and it’s interior was virtually like new.

In my scenario a replacement cooler was unnecessary, but it’s debatable with one more cabonned up. Still, i was only using Oxi-clean solution. For a more heavily impacted one, perhaps hydrogen peroxide (lye) solution, wire passed through and a pressure washer, and it would clean even faster?

 

I think that was popular back in the day on the forums when these cars were new. Cheapest now would probably be going to a junkyard and you can practice pulling it off yourself. Next cheapest would be buying another set off eBay. For both of these options you would have to clean the used parts before swapping them in. Last option is to just buy the EGR parts new, clean your old ones and keep on a shelf, then in the next 60k-100k miles swap them around.

 

yes. Last time I cleaned mine I opted to change them. Info from my Amayama order, in CDN dollars; the only extra was $14~ shipping: