2007 overheated and no heat inside

Both problems could be air trapped in both systems. What did you do to fill and bleed them? Why did you replace the thermostat?

Posted via the PriusChat mobile app.

 

Sounds like a bad thermostat...

 

I bleed the inverter by connecting a clear hose from the bleeder screw (in front of the inverter) to the opening in the reservoir - clamp the end in place because it will spit out. Open the screw and switch ignition ON or READY.

Coolant (and air bubbles) will flow through the hose. Top up coolant as needed- it took me about 5 minutes before all air was gone (the pump got much quieter).

Engine- I'll assume that the new thermostat was installed "correct side out". Follow the procedure in the service manual to bleed. (I use "vacuum fill" tool, so don't have any tips for DIY).

 

The ICE overflow (opaque white plastic reservoir behind the radiator) generally doesn't function as designed, always check the radiator first.

 

In willmore Kentucky you may need longer than 10 minutes to get any kind of serious heating going on maybe run at 5 minutes and then pull back into your driveway and slowly undo just the ice coolant stuff while it's just beginning to supposedly heat up that's when you want to be squeezing and moving your hoses while engine is beginning to heat things a little bit milk that bottom hose like you mean it You also want to check the top hose and that hose that runs from the coolant valve and makes the loop all of that needs to be happening You're obviously not overheating because you're still grabbing hoses and things are happening If you're feeling all around the engine at all of these hoses and nothing's warm more than likely your red triangle may have nothing to do with overheating that is possible sometimes when it's cold it will take a few minutes You've also got some preheating business going on trying to get your heat ready if that's not happening then there's probably a coolant moving and level problem.

 

I don't know if I would change it for all of that what I might have done or might do if I really thought this was something is take the thermostat back out put it in hot water use Mama's candy thermometer and make sure that it's starting to open or whatever the specs are around 180° something like that You can actually see the thermostat start to open and slowly open more and more is the temperature increases and then make sure that the thermostat is inserted the correct way if you put it in upside down you've got a problem If you don't like the fact that there's no jiggle pin use a small drill bit and make one

 

Usually today even crappy stats will function. I'm assuming a stant or robertshaw branded stat maybe even balanced . Spring goes towards pump

 

If you took out 6 quarts of coolant and only put back 4 quarts, that means you don't have enough coolant. Bleed the system and make sure you are in maintenance mode while you let the car run. Monitor the level in the radiator (not the reservoir)

 

Yes but I think once that coolant starts to get hot enough the level will rise quite a bit not two quarts worth granted. But he did say he was able to get another one point some odd quarts back in the vehicle. The next morning or something?

 

That some kind of coolant storage tank It stores hot coolant for whatever reason The Prius has a lot of nonsense going on with coolant everywhere It might behoove you to have a basic diagram of the radiator and the inverter cooling system The inverter cooling system will bleed itself whether you stick hoses from the bleed zerk fitting to the tank and watch it bubble or if you just fill it up with the car on and the pump running it will circulate the coolant all by itself and bleed itself out Why because it's an electric pump It will keep pumping and pumping and pumping until nothing but coolant is recirculating around that loop You can see that with the top off of the reservoir watching that coolant flow You can start watching this from a complete empty system all hoses connected start pouring the coolant in slowly as soon as the coolant hits the pump and the coolant system is almost full you will hear the air farting in the reservoir and coming up out of the top of the reservoir that you have uncovered and vanishing and then there'll be no more bubbles because it's all well coolant or pink stuff. You can't do this in the engine cooling radiator system because you have no electric pump. In the generation 3 you have an electric water pump which you can start with the text software which is essentially the same as squeezing and milking the hoses when you're doing this you want to be doing this pretty violently like you're pissed off at the hose I have not had any trouble with my generation twos cooling system bleeding ever course I own motorcycles and powersports equipment made by Italian manufacturers that people will tell you are literally impossible to bleed I do it in the first 2 minutes and I spend all my time riding these vehicles not working on them. I don't know about any special funnels or any of that kind of stuff I see people that have pumps and things to do all this I have never ever in my life had to do any of that and I've had to change coolant and hundreds of vehicles of all kinds doesn't make me special far from it just haven't had to go through well a lot of the stuff being discussed in many of these posts with these vehicles.

 

Once you exhaust easier diagnostic options about that thermostat's functioning that'd be the way to go... And keep in mind ten minutes of driving in winter might not be long enough to get the coolant up to normal operating temp.

As for air in the system, simply adding coolant via the radiator cap every time the system is cold usually resolves that concern. A bad thermostat or air in the system will have near the same symptoms...