08 Prius No Heat, blowing only cold air

Last week one day I took off for work one cold Michigan morning and found my 08 prius blowing only cold air. I took it to a local Prius dealership for a diagnosis. They had it for quite a while, said they had a hard time figuring it out but it turns out my thermostat was stuck closed. I kindly passed on there $300 thermostat change and picked up my vehicle and purchased the parts to make the repair myself. Well today I finished the cooling system drain and thermostat change but when I fired up my prius and brought it up to operating temperature I found that I still have nothing but cold air blowing . Has anyone else ever seen this before?

 

hahaha, hey, with this economy it dont have to beg much

Thanks for the replys, I will give them some try's. I did not think that I could get air in the system thought. I mean, it worked one day great, sat for a day and the next morning it was ice cold.

 

Well got all the air out, used the trick posted by Patrick Wong about jumping the hcs??? pump to purge the air out, worked great got another half gallon in. On the down side, the thermostat change recommended by the dealer did not work, still blowing ice cold air.

Any other ideas would be greatly appreciated.....
Ruled out
1. Stuck thermostat - replaced
2. Air in system - purged

Also, I use a scangauge and the Water Temp is running 188-193 now, before I got teh air out it was running 225.

 

Thanks Patrick for the advice.
Both radiator hoses are getting hot.
Today she ran at 193-198 on the scangauge, seems hotter than normal? What does everyone else see for a normal temperature?

Jim

 

Well took it to the experts at my local toyota dealership, yah right... They had to get Toyota Technical involved who said they have only seen 4 cars like this and they all had a plugged coolant pump that circulates the coolant into the heater core under the cowl. So my trusty dealer says that while they cant say for sure, I will have to pay 3 hours labor to have them find out.... very suspiscious. I made the point that I already paid 50 bucks for one false diagnosis and now they want me to pay for another one of there guesses, you gotta be kidding. Well I had no choice and told them to go ahead. Hopefully they just need to clean the pump otherwise a new pump is over $600 bucks..... How does that saying go.... "you askef for it, you got it, Toyota" my feeling is that I will really get it on this one

More to come........

 

Bisco,
2nd owner.
Just bought it 2 months ago with 85k, now I have 91k, I drive 800 miles per week commute

Dealer called today and said it's fixed and it was exactly as the Toyota Technical team described, a plugged AC / Coolant Pump located under the cowl. The dealer saved the material that caused the block, they said it looked like a piece of foam.......... Of course my first comment was "where did it come from" as there is probably something deteriorating in the cooling system which lead to this.
Plan to list it on Craigs List next week for those who are interested, 08 prius, silver green, tan leather, level 6, nice car.

 

They showed it to me today, looked like some of that black form pipe insulation. Supposedly there going to give it to the dealer rep and Toyota is going to do an analysis on it.

Wonder if Toyota will pay my bill.....

Heat working great now...