240k miles on water pump / car

Welcome to Prius Chat .

I’d clean the entire egr circuit as well as replace the water pump .

Sounds like the 2010 has been good to you so far.

 

Kind of blows the idea that cleaning the egr cooler prevents the head gasket issue. How long have you owned your 2010 Prius? Sounds like it's been a great car for sure

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In my opinion, a pump that is a “lifetime” pump had a finite lifetime. When it’s lifetime ends, bad things happen.

Your 2010’s water pump has been in service now for almost 10 years and 240k miles. That’s a great run.

We had our 2010 up until April 27th when we sold it and I picked up a Prius Prime. I changed all the pumps (engine, inverter and fuel) under the guise of everything wears out and I’ll do it on my terms rather than the mechanical parts along with the resulting consequences.

But cleaning the egr circuit completely is prudent .

 

"Kind of blows the idea that cleaning the egr cooler prevents the head gasket issue. How long have you owned your 2010 Prius? "

It only blows the idea that ALL high mileage Gen IIIs blow head gaskets, clean EGR or not. Most do not, or people would not be driving them.

BTW: new to the Prius and PriusChat. I've been lurking here since July 2018, when I got my Gen III. I'm an experienced DIY mechanic; done all my car maintenance, including a couple restorations with complete engine rebuilds, but I am VERY grateful for this well-run and useful forum, which has served to put me well into the picture on the Prius. My 2010 trim V now has 63,000 miles on it.

 

How was it changing the fuel pump, a bit of a bear?

I don't know, but suspect that periodic cleaning of the EGR and intake manifold, installing an Oil Catch Can, coupled with steadfast oil changes (maybe more frequently than Toyo USA schedule), will improve your odds.

It should be very easy to visually check the valve cover and timing chain cover. I really doubt any significant amount is being lost through those.

2010 through 2014 have the same rings. 2014 does change the piston. 2015 has both revised pistons and rings. I think it's still debatable how much difference the revised parts make, and would venture that just putting in brand new pistons/rings with the old part numbers would also be quite effect, for at least 100K miles.

 

No it doesn’t. It’s all probabilities. Besides, this car is burning a quart of oil every 1,500 miles.

 

@The Critic and I did the fuel pump and it took about an hour .

We had the tool for the job though (circular wrench designed for a corolla and fit reasonably well for the Prius).

Make sure the gas tank is low to allow for less spillage if you attempt.

But doable and you’ll be surprised what the inlet filter catches if you attempt the job.

 

Point being here we have a car with 240k on the clock and basically has been driven with little maintenance. I personally feel there is more to the head gasket issue than just EGR cooler becoming blocked with carbon.

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It is the smoking gun.

 

Here’s pics of the fuel pump filter that came out:


Then compared to the one going in:

 

And there are people who have smoked since their teens and live into their 90’s. Smoking still causes cancer.

 

FWIW: I have acquired a dandy (not a lot of cleaning required) used EGR cooler/valve assembly via eBay, ready to switch out with my existing one a few more miles down the road. Seems to be good prophylaxis, at the least....

 

We will see as my 2013 Prius is getting to the head gasket failer mileage. I have cleaned intake egr cooler about ever 65,000 miles I am at 156,000 . I hope you guys are correct. Just so many variables

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