new radiator problem

[Nang]

alright, i just swapped my stock radiator for a koyo, but for some reason, after awhile my radiator reservoir tank overflows and bubbles till it start spilling out.

also the lower radiator hose feels like it's empty. I replaced the thermostat with a napa one awhile ago. Is it alright to run without one?

Also swapped the cap with a new one already

[scttydb411]

did you bleed the system after changing out the radiator?

take the cap off and run the car until the fan comes on and squeeze the hoses until all the air bubbles stop and keep filling the rad.

[Barefoot]

did you bleed the system after changing out the radiator?

take the cap off and run the car until the fan comes on and squeeze the hoses until all the air bubbles stop and keep filling the rad.:goodjob::goodjob:

[Nang]

tried bleeding it again, same outcome

took the thermostat out and it seems to be fine now. possible bad thermostat?

[Barefoot]

thermo stuck closed

[VickNotic]

and one thing can you run the car everyday? without the thermostat?

[Nang]

couldn't pop vtec without it so i bought a OEM thermostat and replaced it. same thing, flushed that sucker, refilled it, and then left the cap open so it can air out.

same outcome, the reservoir overflowed again

could it be a bad rad?

the hose that connect to the rad cap area blows out steam too

[STRteg]

so it works np without thermostat? but you cant pop vtec??? ....well that means for you not to be able to pop vtec your motor is staying stupid cold are you sure there is nothing clogging the radiator where the hoses are attatched?

[EmminoDaGreat]

could be a bad cap.

[blackyellrx7]

your thremostat is not opening properly so its cousing it to boil and spit it all back meaning over heating take ur thremostat out and test it by hand

[AnthonyF]

and one thing can you run the car everyday? without the thermostat?

You can but not recommended. The engine needs a certain temp to run properly. They werent designed to run constantly at 185º

-Ant.

[VickNotic]

for some reason, thats the same deal i'm having with mines! 8D

j/w are you able to drive it though? and is the fan kicking in?

[Kaiser]

I'm assuming you have a water temperature gauge in the car? When it starts overflowing, is the car at operating temperature or not?