ASRDogman .......do I remember correctly ......that you are running an aftermarket waterpump rotor/impeller?.......if so, would you mind telling for how many miles? ......Thank You
100,000 mi. WOW! ......thank you soo much.......I have this gut feeling, that a high % of head gasket failures are the result of a compromised water pump, due to a dragging impeller/rotor (not yet locked/up) ........I would be interested in your take on that theory......thanks again
I believe it is a combination of things. And it seems those that drive mostly highway miles go a lot further than those who drive mostly city driving. 301,000 miles for me. I was getting parts together and was going to set a date to replace it before it failed, but it beat me to it. It was a simple knock after sitting 20 minutes after a 20 minute drive. Then about the same thing a few days later. The coolant had only gone down very slightly. I had changed the impeller long before that though. And I only changed it because when I removed the pump the impeller was fine. But I dropped the pump as I was putting it back in place and broke it.
Fair enough! .....I'm going to change the impeller in my wife's 2010......130,000 mi. .....just because......Thanks again!
If it is the original one, and it is not cracked and spins freely, you don't need to replace it. But it's up to you
397,562 miles and I still have the original Traction battery on my Gen 3 2010 Prius 5 trim. I replaced the engine with a JDM 45,000 mile engine in March of 2021 at 268,000 miles on the original engine due to hydro-locked blown engine. New engine is doing fine with zero oil consumption at 129,000 I added plus the original 45,000 for a total of 174,000 miles total on the replacement engine.
2015 Prius with 262k on the clock. Batteries both replaced at 120k Not sure about trans fluid Rear pads got stuck, replaced Oil changes at 6k, spec synthetic Consumes 0.5q EGR cleaned and PCV replaced Coils and plugs replaced, fixed misfires Cylinders a bit dirty but head OK still Water pumps can be tested w scan tool
Toyota USA schedule recommends a 30k mile (or tri-yearly) "more in-depth" brake inspection. This is not a "needs new pads and rotors" brake job, just a regular check/clean/lube maintenance. I think both the dealerships and owners tend to ignore it, short term gain but long term pain.
Hybrid brakes can last a long time if your driving style emphasis is on regen rather than last minute braking. My dealer inspects them at oil changes but the fronts have never been apart and the rears only have new pads because the one hub was noisy and we changed both. Short and long term brake expense gain at 331k miles.
Definitely plenty of deferred maintenance on this vehicle. I believe the previous owner didn't know how to use the parking brake as he was mystified when I pressed the pedal, "what's that", etc. Seems like that could be related to that rear caliper freezing up, it was hardly used. Not a huge deal, but a bit of a pain when I didn't have the tool to turn that piston.
That tool is available to borrow down at your local auto parts store and it's cheap if you want to actually own the tool you need to work on rear disc brakes. There are two kinds of 'frozen'. There's an actual failure of the piston in the caliper. And then there's the Slider Pins rusting up and not allowing the caliper to float. This will result in one brake pad wearing more than the other. The mechanical emergency brake may move the piston regardless if it's frozen in the caliper, but I'm not sure.
With a heavy heart I write this post. I have never posted on this forum but have used it as a resource for any and all maintenance I have performed. I have 2011 Toyota Prius. On June 4th at 5:26am, she told me she didn’t feel like making the commute into Chicago. It’s 45 mile trip. The head gasket went. She had 275,923 miles. I will be buying a new Prius this weekend but I am not done with my original. I’m not sure if will swap engines or just pull the old one to get a skim and new head gasket. She is a great car. Very little maintenance outside of the normal consumables. I changed rear wheel bearings, and an air flow sensor. When I started getting the death rattle this winter I hoped it might be either spark plugs, coils, EGR valve cooler or pipe or manifold. Changed all of those, seemed to prolong its life a few months. Started to get the rattle last week then no mas. She never stranded me. I love that car. lol.
FWIW......If you decide to keep "Her" ......you may want to consider changing the water/pump.......it may be starting to "Drag"......resulting in higher than normal engine operating temperatures .......again, FWIW
