Sounds good that it keeps the same level. Is it really exactly the same?
naaaaah... i was so sure but.... naaah
I took out the hose, pushed the thermostat deeper and tightened it more securely, all the way.
Went for a small drive. Came back to find the valve at the top of the hose leaking....
I used teflon to tight it (don't know if it is a good idea). It seemed tight as should.
Filled the tank with cooling liquid.
I started the engine and wait long enought to reach high temps
- First time the fan cut in much earlier than other times when the gauge was enetering the last white block (so seemed to work much better ....(
))
- temps kept going up
- Fans cut in and out throught out the proccess.
- i didn't push it hard but it managed to keep the gauge just before the reds.
But there! i got the bubbles again. Much less but there.
So it seems i have a hiss from the thermostat housing area, high likely it is this freaking plastic valve ...
and another hiss from the tank cap (i think...)
There is no liquid going out from either, rather than air coming out, or could be steam(??) but no visual to justify such assumption.
How about checking the tank cap again? Also, every hose connection, and hose checking for leaks. The radiator fan switch should be replaced, of course. In case the fan runs are driven by the swich through a relay (I don't remember), replacing the relay might also be a good idea.
How do i check the tank cap? I mean, how do i now that it's valve is working like it should. Could the hiss i heard be a bad sign or a sign of normal operation? Like, this is what the tank cap valve does, deflates (??) the system when in pressure ??
As a coclusion so far, the cooling system seems highly unstable... everytime is a new adventure! Everything works as NOT expected....
I will replace the hose with one cheap i have without a valve. This should at least help me to undestand if the problem is elsewhere.
Pan