ok so i have a 97 gsr. it started to overheat about 5 days ago and this was due to a crack on the radiator. i changed the radiator but it still heats up. then i changed the thermostat housing and nothing changed. and now i just bought an oem thermostat from acura but it still heats up. i checked the hoses early this morning once the car got to the middle and i noticed that the hose from the radiator to the block was hot but the one from the radiator to the thermostat housing was cold. i think that the thermostat isnt opening and this is my second thermostat installed in 2 days. for now im runnig cooling fan manually and without a thermostat and it hasnt overheated anymore. i would like to put the thermostat back on. any help?

 

is your fan spining the right way?? samething happen to me and i thought the fan was spinning into the radiator but it was pushing air the other way

 

Test the thermo yourself to see if it's working properly.

Try fully bleeding the coolant system

 

i would try bleeding the coolant system. if the coolant system is unbled, it will lead to overheating.

 

how do you fully bleed it?.. never done it before..

 

You have air in the coolant system, an air bubble is causing your tstat not to open, which is why that bottom Rad hose is cold. To bleed the system you can easily do this.
-Start engine
-Turn heat on full blast
-Take off Rad Cap
-Top off coolant
-Let car run (With Rad Cap off) til all air bubbles come out and/or the thermostat opens up

If you are standing watching you should see all types of bubbles come out of the radiator fill neck, those bubbles were causing your tstat not to open.

P.S. since it is winter time and your running without a thermostat, chances are you are hurting your engine because it is not reaching peak operating temps.

 

yes ^^^ the polarity can reverse itself over time, its very strange and very very rarely happens but i have seen it happen more than once, for ex.. i have a 90 model accord ex, the rear left doors window seeemed to have quit working.. just on accident i pushed up on the switch and the window wend down,, then i pushed down and the window went up. this struck me odd so i pulled the door panel off, all factory wiring was original untouched, so i reversed the + and - motor wires, and then the window worked correctly - this was odd.
and no i didn't have the switch in the door panel upside down, it can only go one way.

 

i wanna go with this info. thumbs up

 

Does the bolt have to be unscrewed when your doing all this? when does the bolt come in play?

 

This is the correct coolant flush/bleed procedure:

https://honda-tech.com/forums/showpo...46&postcount=7