[PorscheKitty]

So I was going off the fact that usually a waterpump will leak if its bad, so i put in a thermostat...took me FOREVER to get the freaking snap ring out. GRRR. but i got it and put in a new therm as the old one was shot....fresh coolant...tried to vent the system per Clarks Garage instructions and it just didn't seem to be doing what the site said it should....either way i put in fresh coolant and with the car running there was pressure in the hoses...the upper hose was much hotter and pressurized than the lower, however...and the car doesn't blow hot air. The heater doesn't work...at all, even revving the motor the heater won't heat up...and the car still overheats...

Am I leaning towards clogged radiator/heater core?
Could the water pump still potentially be the culprit?
All of the above?
The car for sure is overheating because i can feel the too high heat off the motor...but my temp gauge seems a little wacky, it kind of jumps up to the high line and sometimes it'll move down a bit then shoot back up...ack

and how much of a pain is it to pull out the heater core and the radiator if i need to take them to a shop?