Cooling question?

[ArtMan]

I hate starting a cooling thread but I cant seem to find answers so here goes!


Currently i have 199,xxx miles and thus far:

~130,xxx waterpump & thermostat were replaced
~191,xxx expansion tank, all hoses (except heater valve to core) auto trans thermostat, fan clutch, radiator and aux fan were replaced. ( not 100% sure what happened but car was on its way to overheating on freeway in stand still ( i think ac was on and aux fan died and fan clutch was too old just my thought) but it was almost in red when i saw it so i blasted the heat and parked it immediately on shoulder. After like 1hr it was cooler and with the heat blasting it did not move past the 12 o'clock position since that time 2yrs ago)

now i've noticed if i drive and park. i come back to a coolant puddle ( i had noticed that i was topping off coolant more frequently lately but no puddle) However now i have a puddle i re-bleed the system i jacked up the drive side and it helped lots of air came out. but what i wanted to find out is should i feel the flow of coolant in the hoses? if i drive hard the radiatior is hot if i let it sit its barely warm....not to mention the lower hose is barely warm and i can even pinch it closed and i dont see the coolant overflow when the ET is open!!!! (i thought if it was pumping and i blocked off the lower hose i would see it build up and over flow but nothing) but if i let the car sit idling the coolant slowly rises and overflows on its own. And when i shut it off it kinda burps i can do the same to the top hose i can pinch it off and i dont feel pressure or a fluid flow but the car DOES NOT over heat. its at 12 all the time but its puking coolant from the expansion cap from what i think its just plain over pressurized system.. and i dont believe its a faulty cap bc the top hose gets really expanded like its much larger from built up pressure ( mainly air).

but if i raise rpm to 2-3K i can see the little stream in the ET like everyone describes when doing a bleed procedure..... Im planning on replacing the water pump and thermostat but wanted to hear peoples thoughts on the topic! http://www.xoutpost.com/images/smilies/dunno.gif