PCV Valve replacement: why not removing the inverter coolant reservoir?

Professional mechanics tend to remove only as much as needed. What's "needed" can be a judgement call, but I'd say unless it's nigh impossible, say for example there's not enough room to put a torque wrench on it after, I would leave the coolant reservoir alone. Or, can it be unbolted and just shifted over slightly?

 

In the video shared in post #19, at 2 minutes 25 seconds you clearly see where its coolant connection fits into the inverter, with its O ring.

Pull that out and the coolant comes with it.

 

Trust me. If you pop that off without draining the inverter cooling loop, you're going to make a mess.....

 

I never removed the reservoir when I replaced them, just used a socket.

 

I'm lazy. Draining & refilling the inverter tank is more work than I want to do. Plus there's always the possibilty of something leaking "ever sinz U touched it".

There would have to be a significant gain in access or time saved before I would think about doing something like that.

Posted via the PriusChat mobile app.

 

Do not remove the reservoir. Do not use an open end wrench on the pcv valve you may bust the valve cover. You just basically push all the hoses out of the way and tie them up. See my pic.

best way to replace the plugs is take the water dam under the windshield out. Its pretty easy. Lots of posts about it use the search forum. You can clean out all the leaf debris too.

That will give you access to the valve cover. And I agree the pcv valve is not why your burning oil your burning oil because usually it has seen a life of dino oil. And poor oci. Toyota's burning oil is very very common. Bad design loose oil ring exacerbated by poor oil management.

When you replace the plugs before removing them take a picture of the spark plug well see if any oil is sitting in the well from a leaky valve cover gasket really common. See my pic.

The fact that you getting rolling missfires is not good on this engine. Its sensing sub sonic vibration which confuses the engine ecu so its just starts throwing multiple missfires codes. sometimes means a blown piston wrist pin bearing in the engine usually from lack of oil. Engine replacement is Really common on this site most people don't even know there engine is eating oil till they get a check engine light. Nobody check's there oil regularly...

If you run this little engine so dry you get a check engine light that's not good. The light means the oil pump was sucking air not oil...zero oil pressure.

 

Caveat - with the correct weight oil. Even a new Prius engine would likely burn that much if filled with 0W20, for instance. This is a common problem on some recent cars, which specify the use of these very low viscosity oils for better MPG and then end up burning through it very quickly when it gets past the rings.

 

Was there some way we could have told you about that so it would have been convincing, and saved you that mess?

 

Try "unwatch this thread", then "watch this thread" (option at top of page), and you'll see this:

 

There's à tool for every problem. Pick up one of those cheap plastic fluid pumps and drain the inverter reservoir before removing it.

 

There are settings in your profile for these things but they are not on by default.

 

Don't need to drain just the reservoir just open the Inverter coolant dump bolt under the car it will drain the entire inverter coolant loop.

 

Is anybody else going through so much excitement just to change a PCV valve on a 1NZ?