Thanks Oldblue, I really appreciate your advise, follow the link
https://www.chevyhhr.net/forums/www....ad.php?t=60614

I found this video on youtuve.


your procedure is similar to that video?, just the rad pressure caps for HHR is not at the top of the radiator is on the hose coming from the engine.

so this procedure has to be the car in on or off?
1 - Fill the radiator hose filler under the pressure cap with Dexcool, right to the top.
that means that I have to open the radiator(take off) caps pressure and with a funnel fill out with dexcool?, but with the car off, right?
2- with the heater on high to open the heater core up to the cooling system.?
Does that mean I have to put the heater button inside the car in on? wit the engine running? or just to open the key ignition and run the heater?
3- Now let it cool off, then top up the Dexcool and put the pressure cap back on.
so that means when taking off the pressure cap the car has to be running the engine? and when I refill need to turn off the car and wait until be cool?, and after 2 hours put it back the pressure cap?
4- Start your engine and drive around the block, gently, now watch the DIC for temperatures.
so after 2 hours start the engine and driver around the neighbourhood?

so let me know if I am right with your procedure?
thanks so much
so sorry oldblue but I am no clear with the procedure, I tried to find a video to explain that and not body upload a video to youtube to explain the procedure.

 

Park the car front end up on a hill, let it cool off , remove filler cap, top up Dexcool, replace filler cap, close hood , start car, take it for a 20 to 30 minute drive with the heater switch turned to full heat and fan on full .
then park again front end higher then the rear bumper on a hill, turn off the ignition, let car cool off completely, open the hood, remove coolant filler cap, top up Dexcool, replace the cap and close the hood.
repeat at least twice!
Check again after a day or two to ensure the air has been burped out.

 

Thanks Oldblue, I did that your advice, the first day I started the reservoir was empty I fill out(day before in normal position was full) but parking in hill was empty, so I refill until neck, I run for about 25 minutes with the heater and fan at full, yesterday I review and refill again wasn't empty but by under neck, I drove with the same about 25 minutes with heater and fans at full(temperature was hight until 104 when I turn off in my drive way at home in a hill) now right now I review the reservoir was full, I don't turn on again today, I take off the radiator pressure cap and I saw the hose was empty, so what are you advise to open the radiator pressure cap and turn on the heater and fans and refill with dexcool, without drive? similar to the procedure in the video?, or just turn on the car and drive but with heater and fan off?

Filler cap : is for reservoir
The Radiator pressure cap: is the cap over the hose and plastic between the radiator and engine.

so let me know any advice from you, will be great.Thanks so much for you help all the time.

 

The filler neck is at the rad cap in the hose from the cylinder head to the radiator


The rad cap ^^^

 

Thanks again oldblue, I did that follow your advice fill out the hoses on the pressure cap top full with full heater and I saw how the bubble came out, after I drove the car for 20 minutes and gauge coolant temperature go until 87 and after down until 84, so now is ok tomorrow I will drive again and to see, thanks so much for you support. I have another question, maybe I will ask by private message, I will close this threats.